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Grinnell State Bank Rates & Review November 2026
Content reviewed by
Brian McKay
Brian McKay
Founder & Data Architect
Expertise
Automated Online Rate Data Aggregation
Location-Based Rate Tables
Bank & Credit Union Health Safety Ratings
Bank & Credit Union Star Ratings
Finance Calculators
Brian is the Founder of MonitorBankRates.com. For over 18 years, he has utilized his background in enterprise infrastructure to engineer proprietary systems that track rates from over 8,000 financial institutions.
Editorial Disclosure
The rates displayed are actual, verified rates sourced directly from the official websites of banks and credit unions. Our editorial content is independent of any advertiser relationships.
|✓Fact Checked|Rates Last Updated and Verified: November 6, 2026
Grinnell State Bank's 6-Month CD rates are at 3.68%, CD - 6-Month rates are at 3.68%, CD - 60-Month rates are at 2.52%, CD - 48-Month rates are at 2.42%, CD - 36-Month rates are at 2.32%. Grinnell State Bank's savings rates are at 2.02%. Grinnell State Bank's checking rates are as high as 0.35%. Grinnell State Bank's top CD rate of 3.68% APY on a 6 month CD is 31% higher than the MonitorBankRates national average of 2.81% APY for that term, and it has an A- health rating. MonitorBankRates evaluates the financial stability of Grinnell State Bank with a 5.0 Star Rating, an A- Overall Health Grade, and a Texas Ratio of 14.50%. Rates last updated and verified on 11/06/2026.
Grinnell State Bank money market rates, and other rates, are continually updated to reflect market conditions. We recommend checking back frequently to get the best money market rates and other rates available. Have you opened an account or have any experiences at Grinnell State Bank? Share your experience about Grinnell State Bank by leaving a review below, or read customer reviews before you decide to use Grinnell State Bank.
Grinnell State Bank has earned an overall safety grade of A- (Very Good, Score: 93/100).
This proprietary letter grade is calculated by combining the institution's Star Rating with its Texas Ratio, providing a straightforward indicator of its financial stability and reliability.
Grades range from A+ (Exceptional) to F (High Risk) based on objective FDIC regulatory data.
MonitorBankRates Rating
?
5.0
ExceptionalOut of 5.0 Stars
MonitorBankRates Star Rating
Grinnell State Bank has earned a Star Rating of 5.0 out of 5 stars (Exceptional).
Our proprietary rating system evaluates financial stability including the Texas Ratio and capitalization and combines it with customer feedback (user reviews) to help you make informed banking decisions.
Texas Ratio
?
14.50%
ExcellentHigher than avg
Grinnell State Bank Texas Ratio
Grinnell State Bank's Texas Ratio is 14.50%, which is considered excellent and is higher than the national average of 5.85%.
Grinnell State Bank has a very low volume of non-performing assets compared to its available capital, signifying a strong balance sheet.
The Texas Ratio compares non-performing assets to tangible common equity and loan loss reserves. Lower is better.
0.00% to 14.50% over 12 quarters, steadyFull history
Star Rating 4.9 to 5.0, Health Grade A+ to A-
The Texas Ratio for this bank has held steady at a healthy level since Q3 2023. Lower is healthier; the amber line is the 15% level required for the MBR Verified Healthy badge.
Financial health data as of Q2 2026 (FDIC call report for the quarter ended June 30, 2026). This is the most recent call report available. The FDIC publishes bank call reports about eight weeks after each quarter ends.
Grinnell State Bank CD Rates
Product
Rate
APY
Term
Min. Deposit
View More
33-Month with One Time Bump
-
4.25%
33 Month
$1,000
Min Deposit$1,000
Min Balance$15,000
DetailsBalance: $15,000 and over; Variable; One Time Bump Option
Last Updated11/06/2026
Rate History
1 change since Sep 24, 2026 · 4.15% → 4.25% ▲ 0.10 pts · high 4.25% / low 4.15%
Oct 7, 20264.25%▲ from 4.15%
Sep 24, 20264.15%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
33-Month with One Time Bump
-
4.25%
33 Month
$1,000
Min Deposit$1,000
Min Balance$50,000
DetailsBalance: $50,000 and over; Variable; One Time Bump Option
Last Updated11/06/2026
Rate History
1 change since Sep 24, 2026 · 4.15% → 4.25% ▲ 0.10 pts · high 4.25% / low 4.15%
Oct 7, 20264.25%▲ from 4.15%
Sep 24, 20264.15%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
15-Month with One Time Bump
-
4.15%
15 Month
$1,000
Min Deposit$1,000
Min Balance$15,000
DetailsBalance: $15,000 and over; Variable; One Time Bump Option
Last Updated11/06/2026
Rate History
1 change since Sep 24, 2026 · 4.00% → 4.15% ▲ 0.15 pts · high 4.15% / low 4.00%
Oct 7, 20264.15%▲ from 4.00%
Sep 24, 20264.00%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
15-Month with One Time Bump
-
4.15%
15 Month
$1,000
Min Deposit$1,000
Min Balance$50,000
DetailsBalance: $50,000 and over; Variable; One Time Bump Option
Last Updated11/06/2026
Rate History
1 change since Sep 24, 2026 · 4.00% → 4.15% ▲ 0.15 pts · high 4.15% / low 4.00%
Oct 7, 20264.15%▲ from 4.00%
Sep 24, 20264.00%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
33-Month with One Time Bump
-
4.15%
33 Month
$1,000
Min Deposit$1,000
Min Balance$1,000
DetailsBalance: $1,000 and over; Variable; One Time Bump Option
Last Updated11/06/2026
Rate History
1 change since Sep 24, 2026 · 4.05% → 4.15% ▲ 0.10 pts · high 4.15% / low 4.05%
Oct 7, 20264.15%▲ from 4.05%
Sep 24, 20264.05%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
15-Month with One Time Bump
-
4.05%
15 Month
$1,000
Min Deposit$1,000
Min Balance$1,000
DetailsBalance: $1,000 and over; Variable; One Time Bump Option
Last Updated11/06/2026
Rate History
1 change since Sep 24, 2026 · 3.90% → 4.05% ▲ 0.15 pts · high 4.05% / low 3.90%
Oct 7, 20264.05%▲ from 3.90%
Sep 24, 20263.90%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
6-Month CD
-
3.68%
6 Month
$1,000
Min Deposit$1,000
Min Balance$50,000
DetailsBalance: $50,000 and over; Variable
Last Updated11/06/2026
Rate History
No change since Sep 24, 2026 · 3.68% APY · checked 10 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 6-month
3.65%
3.68%
6 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 3.68% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
6-Month CD
-
3.58%
6 Month
$1,000
Min Deposit$1,000
Min Balance$15,000
DetailsBalance: $15,000 and over; Variable
Last Updated11/06/2026
Rate History
No change since Sep 24, 2026 · 3.58% APY · checked 10 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 6-month
3.55%
3.58%
6 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 3.58% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 60-month
2.50%
2.52%
60 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.52% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 48-month
2.40%
2.42%
48 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.42% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 60-month
2.40%
2.42%
60 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.42% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 36-month
2.30%
2.32%
36 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.32% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 42-month
2.30%
2.32%
42 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.32% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 48-month
2.30%
2.32%
48 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.32% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 60-month
2.30%
2.32%
60 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.32% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 12-month
2.25%
2.27%
12 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.27% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 18-month
2.25%
2.27%
18 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.27% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 24-month
2.25%
2.27%
24 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.27% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 3-month
2.25%
2.27%
3 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.27% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 30-month
2.25%
2.27%
30 month
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.27% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 36-month
2.20%
2.22%
36 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.22% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 42-month
2.20%
2.22%
42 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.22% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 48-month
2.20%
2.22%
48 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.22% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 12-month
2.15%
2.17%
12 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.17% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 18-month
2.15%
2.17%
18 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.17% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 24-month
2.15%
2.17%
24 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.17% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 3-month
2.15%
2.17%
3 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.17% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 30-month
2.15%
2.17%
30 month
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.17% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 36-month
2.10%
2.12%
36 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.12% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 42-month
2.10%
2.12%
42 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.12% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 12-month
2.05%
2.07%
12 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.07% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 18-month
2.05%
2.07%
18 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.07% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 24-month
2.05%
2.07%
24 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.07% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 3-month
2.05%
2.07%
3 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum; 3-60 month term has a minimum opening balance requirement of $1000.00
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.07% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 30-month
2.05%
2.07%
30 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.07% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 30-90 Day
2.05%
2.07%
30-90 Day
-
Min Balance$50,000
DetailsBalance: $50,000.00 & IRA
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.07% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
6-Month CD
-
2.06%
6 Month
$1,000
Min Deposit$1,000
Min Balance$1,000
DetailsBalance: $1,000 and over; Variable
Last Updated11/06/2026
Rate History
No change since Sep 24, 2026 · 2.06% APY · checked 10 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 6-month
2.05%
2.06%
6 month
-
Min Balance$1,000
DetailsBalance: $1,000.00 minimum
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.06% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 30-90 Day
2.03%
2.05%
30-90 Day
-
Min Balance$15,000
DetailsBalance: $15,000.00 - $49,999.99
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.05% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
CD - 30-90 Day
2.01%
2.03%
30-90 Day
-
Min Balance$2,500
DetailsBalance: $2,500.00 minimum; 30-90 day has a minimum opening balance requirement of $2500.00
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.03% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Grinnell State Bank Savings Rates
Product
Rate
APY
View More
Simply Savings Split Balance Tiers
2.00%
2.02%
Min Deposit$100
Min Balance$100
DetailsBalance: up to $500.00; Tier 1
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 2.02% APY · checked 5 times
No change since Oct 21, 2026 · 0.97% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Money Market Savings
0.75%
0.75%
Min Deposit$100
Min Balance$25,000
DetailsBalance: $25,000.00 +; Minimum for APY $25,000; Available (Collected) Balance (AB)
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 0.75% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Grinnell State Bank Business Savings Rates
Product
Rate
APY
View More
Simply Savings (Personal & Business)
2.00%
2.02%
Min Deposit$100
Min Balance$0
DetailsBalance: $0.00 to $500.00; Split Interest Rate is applied; APY % Range: 2.02
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 2.02% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Simply Savings (Personal & Business)
2.00%
2.02%
Min Deposit$100
Min Balance$500
DetailsBalance: $500.01 to $25,000.00; Split Interest Rate is applied; APY % Range: 2.02 to 2.02
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 2.02% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Savings (Personal & Business)
1.75%
1.76%
Min Deposit$100
Min Balance$200,000
DetailsBalance: $200,000.00 and over; Minimum to open $100
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 1.76% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Savings (Personal & Business)
1.50%
1.51%
Min Deposit$100
Min Balance$100,000
DetailsBalance: $100,000.00 - $199,999.99; Minimum to open $100
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 1.51% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Simply Savings (Personal & Business)
-
1.39%
Min Deposit$100
Min Balance$25,000
DetailsBalance: $25,000.01 to $50,000.00; Split Interest Rate is applied; APY % Range: 2.02 to 1.39
Last Updated11/06/2026
Rate History
1 change since Sep 14, 2026 · 2.02% → 1.39% ▼ 0.63 pts · high 2.02% / low 1.39%
Oct 21, 20261.39%▼ from 2.02%
Sep 14, 20262.02%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Savings (Personal & Business)
1.25%
1.26%
Min Deposit$100
Min Balance$50,000
DetailsBalance: $50,000.00 - $99,999.99; Minimum to open $100
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 1.26% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Simply Savings (Personal & Business)
-
1.09%
Min Deposit$100
Min Balance$50,000
DetailsBalance: $50,000.01 to $100,000.00; Split Interest Rate is applied; APY % Range: 1.39 to 1.09
Last Updated11/06/2026
Rate History
1 change since Sep 14, 2026 · 1.39% → 1.09% ▼ 0.30 pts · high 1.39% / low 1.09%
Oct 21, 20261.09%▼ from 1.39%
Sep 14, 20261.39%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Business Money Market Savings
1.00%
1.00%
Min Deposit$10,000
Min Balance$25,000
DetailsBalance: $25,000.00 and over; Minimum to open $10,000; Minimum for APY $10,000; Available (Collected) Balance
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 1.00% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Savings (Personal & Business)
1.00%
1.00%
Min Deposit$100
Min Balance$5,000
DetailsBalance: $5,000.00 - $49,999.99; Minimum to open $100
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 1.00% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Simply Savings (Personal & Business)
-
0.97%
Min Deposit$100
Min Balance$100,000
DetailsBalance: $100,000.01 to $200,000.00; Split Interest Rate is applied; APY % Range: 1.09 to 0.97
Last Updated11/06/2026
Rate History
1 change since Sep 14, 2026 · 1.09% → 0.97% ▼ 0.12 pts · high 1.09% / low 0.97%
Oct 21, 20260.97%▼ from 1.09%
Sep 14, 20261.09%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Simply Savings (Personal & Business)
0.90%
0.92%
Min Deposit$100
Min Balance$200,000
DetailsBalance: $200,000.01 to $1,000,000.00; Split Interest Rate is applied; APY % Range: 0.97 to 0.92
Last Updated11/06/2026
Rate History
1 change since Sep 14, 2026 · 0.97% → 0.92% ▼ 0.05 pts · high 0.97% / low 0.92%
Oct 21, 20260.92%▼ from 0.97%
Sep 14, 20260.97%first recorded
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Business Money Market Savings
0.75%
0.75%
Min Deposit$10,000
Min Balance$10,000
DetailsBalance: $10,000.00 to $24,999.99; Minimum to open $10,000; Minimum for APY $10,000; Available (Collected) Balance
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 0.75% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Savings (Personal & Business)
0.75%
0.75%
Min Deposit$100
Min Balance$0
DetailsBalance: $0.00 - $499.99; Minimum to open $100
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 0.75% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Savings (Personal & Business)
0.75%
0.75%
Min Deposit$100
Min Balance$500
DetailsBalance: $500.00 - $4,999.99; Minimum to open $100
Last Updated11/06/2026
Rate History
No change since Oct 21, 2026 · 0.75% APY · checked 5 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Grinnell State Bank Money Market Rates
Product
Rate
APY
View More
Money Market Savings
0.75%
0.75%
Min Deposit$100
Min Balance$25,000
DetailsBalance: $25,000.00 +; Minimum for APY $25,000; Available (Collected) Balance (AB)
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 0.75% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Grinnell State Bank Business Money Market Rates
Product
Rate
APY
View More
Business Money Market Savings
1.00%
1.00%
Min Deposit$10,000
Min Balance$25,000
DetailsBalance: $25,000.00 and over; Minimum to open $10,000; Minimum for APY $10,000; Available (Collected) Balance
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 1.00% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Business Money Market Savings
0.75%
0.75%
Min Deposit$10,000
Min Balance$10,000
DetailsBalance: $10,000.00 to $24,999.99; Minimum to open $10,000; Minimum for APY $10,000; Available (Collected) Balance
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 0.75% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Grinnell State Bank Checking Rates
Product
Rate
APY
View More
Premier Checking
0.35%
0.35%
Min Deposit$10,000
Min Balance$200,000
DetailsBalance: $200,000.00 and over; Available (Collected) Balance (AB)
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 0.35% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Premier Checking
0.30%
0.30%
Min Deposit$10,000
Min Balance$100,000
DetailsBalance: $100,000.00 - $199,999.99; Available (Collected) Balance (AB)
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 0.30% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Full Service Checking
0.25%
0.25%
Min Deposit$100
Min Balance$25,000
DetailsBalance: $25,000.00 and over; Minimum for APY $2500 AB (Available Collected Balance)
Last Updated11/06/2026
Rate History
No change since Oct 7, 2026 · 0.25% APY · checked 7 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Premier Checking
0.25%
0.25%
Min Deposit$10,000
Min Balance$50,000
DetailsBalance: $50,000.00 - $99,999.99; Available (Collected) Balance (AB)
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 0.25% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Full Service Checking
0.20%
0.20%
Min Deposit$100
Min Balance$10,000
DetailsBalance: $10,000.00 to $24,999.99; Minimum for APY $2500 AB (Available Collected Balance)
Last Updated11/06/2026
Rate History
No change since Oct 7, 2026 · 0.20% APY · checked 7 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Full Service Checking
0.15%
0.15%
Min Deposit$100
Min Balance$2,500
DetailsBalance: $2,500.00 to $9,999.99; Minimum for APY $2500 AB (Available Collected Balance)
Last Updated11/06/2026
Rate History
No change since Oct 7, 2026 · 0.15% APY · checked 7 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Premier Checking
0.15%
0.15%
Min Deposit$10,000
Min Balance$0
DetailsBalance: $0.00 - $49,999.99; Available (Collected) Balance (AB)
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 0.15% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Grinnell State Bank Other Rates
Product
Rate
Points
APY/APR
Term
View More
IRA Open Time & College Fund Accounts
2.25%
-
2.27%
Min Deposit$50
DetailsMinimum: $50 IRA; $250 College Fund; Interest Bearing Savings Accounts; Minimum to open IRA $50, College Fund $250
Last Updated11/06/2026
Rate History
No change since Sep 14, 2026 · 2.27% APY · checked 11 times
Institution Ratings
5.0
Star Rating
A-
Health Grade
◈ Texas Ratio: 14.50%
Financial Health History
Grinnell State Bank’s Texas Ratio rose from 0.00% in Q3 2023 to 14.50% in Q2 2026, so its financial health has held steady at a healthy level over the past 12 quarters. Over the same period its Star Rating moved from 4.9 to 5.0 and its Health Grade from A+ to A-. Lower Texas Ratios are healthier; the green zone below the amber 15% line is where a bank must stay to qualify for the MBR Verified Healthy badge. Hover over or tap a point for that quarter’s figures.
Swipe the chart sideways to see every quarter.
Texas Ratio, left axis (lower is healthier)MBR Star Rating, right axis (1 to 5)Health Grade15% Verified Healthy limit (green zone below = healthy)
How to read this chart: the two lines move in opposite directions by design. The Texas Ratio (blue) measures trouble, so a rising blue line means more non-performing assets against capital. The Star Rating (green) and Health Grade chips measure strength, so they fall when the Texas Ratio climbs and recover when it drops.
Show the quarterly figures
Quarter
Total assets
Texas Ratio
Star Rating
Health Grade
June 30, 2026
$499M
14.50%
5.0
A-
March 31, 2026
$497M
16.61%
4.9
A-
December 31, 2025
$500M
16.04%
4.9
A-
September 30, 2025
$483M
17.21%
4.8
B+
June 30, 2025
$500M
18.93%
4.7
B+
March 31, 2025
$505M
15.87%
4.9
A-
December 31, 2024
$493M
17.03%
4.8
B+
September 30, 2024
$508M
15.81%
4.9
A-
June 30, 2024
$494M
13.23%
5.0
A
March 31, 2024
$475M
8.19%
5.0
A
December 31, 2023
$468M
7.89%
5.0
A
September 30, 2023
$461M
0.00%
4.9
A+
Source: FDIC call reports, MonitorBankRates analysis. Ratings shown are recomputed for each quarter with the current methodology and exclude member reviews.
Methodology & Data Sources
MonitorBankRates Star Rating:
Our rating for Grinnell State Bank is derived from comprehensive financial data published quarterly by the FDIC.
Our proprietary rating system evaluates financial stability (including the Texas Ratio and capitalization) and combines it with customer feedback (user reviews) to help you make informed banking decisions.
Texas Ratio:
We calculate the Texas Ratio using standard industry methodology. This ratio compares the bank's non-performing assets to its tangible common equity and loan loss reserves to assess financial health.
Rate Data Aggregation:
We gather Grinnell State Bank rates using proprietary online rate aggregation technology. Our systems scan constantly to provide the most recent rates available to our visitors.
Disclaimer: Interest rates are variable and subject to change without notice. While we strive for accuracy, rates can change rapidly based on market conditions.
It is always advisable to check with Grinnell State Bank's official website for the most current offers and terms.
Address
814 4th Ave,
Grinnell, IA 50112 · Poweshiek
Bank Holding CompanyGRINNELL BANCSHARES INC
FDIC Certificate #11347
RegulatorFDIC
EstablishedOctober 25, 1925
FDIC Insurance DateJanuary 1, 1934
Domestic Offices4
Total Branches4
FDIC Insured✓ Yes, up to $250,000 per depositor
Financials
MonitorBankRates Star Rating
5.0 / 5.0 ★
Overall Health & Safety Grade
A- (93/100)
Texas Ratio
14.50%
National Average Texas Ratio
5.85%
Return on Assets (ROA)
0.9837%
Return on Equity (ROE)
10.0700%
Non-Performing Loans Ratio (NPL)
0.36%
Total Assets
$498,585,000
Total Deposits
$346,562,000
Equity Capital
$49,701,000
Net Income
$2,452,000
Headquarters
Grinnell
Total Branches and Offices
4
Source: FDIC — Last Updated June 30, 2026
2026 MBR Health & Safety Badge
Grinnell State Bank earned the Verified Healthy badge
Display this badge on your website to show visitors your 2026 MonitorBankRates recognition. The badge links back to this profile page for independent verification.
Copy the HTML below and paste it into your website where you’d like the badge to appear. The badge image is hosted on MonitorBankRates, so there is no need to download or upload anything. Badges are re-tested every quarter, and this profile page always shows the latest results, so the code never needs to change.
Learn more about the MBR Health & Safety Badge program on our methodology page.
Customer Reviews
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Average Rating
☆☆☆☆☆
Total Reviews
0
Add Your Rating and Review for Grinnell State Bank
Frequently Asked Questions About Grinnell State Bank
Does Grinnell State Bank offer CDs?
Yes. Grinnell State Bank current CD rates include its 6-Month CD at 3.68% APY, its CD - 6-Month at 3.68% APY and its CD - 60-Month at 2.52% APY, verified by MonitorBankRates as of November 6, 2026.
Are CDs from Grinnell State Bank FDIC insured?
Yes. Grinnell State Bank is insured by the Federal Deposit Insurance Corporation (FDIC), so CDs opened there are insured up to $250,000 per depositor, per ownership category.
What is the highest CD rate at Grinnell State Bank?
The highest Grinnell State Bank CD rate is its 33-Month with One Time Bump CD at 4.25% APY, verified by MonitorBankRates as of November 6, 2026.
What CD terms does Grinnell State Bank offer?
Grinnell State Bank CD rates are 3.68% APY for a 6 month CD, 2.07% APY for a 12 month CD, 2.07% APY for an 18 month CD, 2.07% APY for a 2 year CD, 2.32% APY for a 3 year CD, 2.42% APY for a 4 year CD and 2.52% APY for a 5 year CD, verified by MonitorBankRates as of November 6, 2026. The institution may offer other terms or specials that are not listed here, so check with Grinnell State Bank for its full lineup.
What is the highest savings rate at Grinnell State Bank?
The highest Grinnell State Bank savings rate is its Simply Savings (Personal & Business) at 2.02% APY, verified by MonitorBankRates as of November 6, 2026.
What is the highest money market rate at Grinnell State Bank?
The highest Grinnell State Bank money market rate is its Business Money Market Savings at 1.00% APY, verified by MonitorBankRates as of November 6, 2026.
What is the highest checking rate at Grinnell State Bank?
The highest Grinnell State Bank checking rate is its Premier Checking at 0.35% APY, verified by MonitorBankRates as of November 6, 2026.
How many branches does Grinnell State Bank operate?
Grinnell State Bank currently maintains approximately 4 branch location(s). Physical branches allow members to access in-person services such as notary consultations and safe deposit boxes.
Is there a first-time homebuyer program?
Currently, Grinnell State Bank does not list a specific first-time homebuyer program, but they provide a range of mortgage and home equity products to assist members with property financing.
Are credit management and repair services offered?
While formal credit repair services are not currently listed, Grinnell State Bank provides members with tools to manage their accounts and build a solid financial history.
Does Grinnell State Bank offer online and mobile banking?
Most modern institutions like Grinnell State Bank provide digital access. This includes the ability to check balances, transfer funds, deposit checks via mobile app, and view statements online. You can usually find these services at their official website: https://www.grinnell.bank.
Are all CD rates listed on MonitorBankRates federally insured?
Most are. Banks are insured by the FDIC and most credit unions by the NCUA, up to $250,000 per depositor, per ownership category. A small number of credit unions are privately insured instead, and we label them on their pages. MonitorBankRates is not a bank or credit union; deposit insurance comes from the institution where you open the account.
I want to open a CD with an institution listed on MonitorBankRates. How do I open the account?
You open the account directly with the bank or credit union. Use the View button next to a rate to go to the institution's website, then apply online, by phone or at a branch. Confirm the current rate and terms with the institution before you deposit.
If I open a CD I found on MonitorBankRates, is my account with MonitorBankRates or the institution?
Your account is with the financial institution. MonitorBankRates is a rate comparison site; we do not open accounts, hold deposits or handle your money.
Why are some CD offers not available for me to open?
Some offers are limited to certain states or local areas, require membership or an existing account, need a minimum deposit, or were promotions that have since ended. Rates can also change after we verify them. The institution's website has the current eligibility rules.
How do Grinnell State Bank rates compare?
Grinnell State Bank's top CD rate of 3.68% APY on a 6 month CD is 31% higher than the MonitorBankRates national average of 2.81% APY for that term, and it has an A- health rating. Grinnell State Bank's top rates are its 33-Month with One Time Bump CD at 4.25% APY, its Simply Savings (Personal & Business) at 2.02% APY and its Premier Checking at 0.35% APY, verified by MonitorBankRates on November 6, 2026.
Current Grinnell State Bank Rates
12-Month CD2.07%
18-Month CD2.07%
24-Month CD2.07%
36-Month CD2.12%
48-Month CD2.22%
60-Month CD2.32%
Savings2.02%
Retrieved from our database of financial products. Rates subject to change.