South Dakota (SD) Savings Rates - March 2026
Content reviewed by
Brian McKay
i
Editorial Disclosure
Brian McKay
Brian McKay
Founder & Data ArchitectExpertise
- 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.
Read Full Bio →
Editorial Disclosure
The savings 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.
The best savings rates for South Dakota include OAB One American BankOAB One American Bank549 Broadway St, Centerville, SD 57014A+5.0 ★Texas Ratio: 3.42% Savings at 3.60% APY, Bluestone Federal Credit UnionBluestone Federal Credit Union3400 S Sycamore Ave, Sioux Falls, SD 57110 4412A+5.0 ★Texas Ratio: 5.08% 12 MO VARIABLE SHARE CERT. at 3.30% APY, Merchants State BankMerchants State Bank305 S Main St, Freeman, SD 57029A+5.0 ★Texas Ratio: 2.01% Traditional IRA Savings at 3.25% APY, SNB Security National Bank of SDSNB Security National Bank of SD325 Dakota Dunes Blvd, Dakota Dunes, SD 57049A+5.0 ★Texas Ratio: 0.00% Sidekick Savings at 3.25% APY, and Heritage Bank N.A.Heritage Bank N.A.140 N Phillips Ave, Sioux Falls, SD 57104A5.0 ★Texas Ratio: 6.65% JUMBO SAVINGS ACCOUNT at 2.77% APY. Savings rates as of March 25, 2026 according to verified data from MonitorBankRates.
To see how these savings rates in South Dakota compare, use our comprehensive tables below for side-by-side comparisons to find the best savings rates available. Rates in South Dakota (SD) are continually updated — we recommend checking back frequently.
Savings rates reflect recent market quotes and representative offers available to depositors in South Dakota and the surrounding area. Last Updated and Verified: March 25, 2026
Compare the Best Savings Rates in South Dakota
Source: Verified Savings Rate Data provided by MonitorBankRates
Institution
Product
APY
Min Deposit
Profile
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Savings
3.60%
$0
▼
Rate3.54%
Min Deposit$0
Min Balance—
UpdatedMar 24, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Savings+
3.60%
$100
▼
Rate0.00%
Min Deposit$100
Min Balance—
UpdatedMar 24, 2026
Details
Bluestone Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 5.08%
3400 S Sycamore Ave, Sioux Falls, SD 57110 4412
12 MO VARIABLE SHARE CERT.
3.30%
$1,000
▼
Rate0.00%
Min Deposit$1,000
Min Balance—
UpdatedMar 25, 2026
Details
Merchants State Bank
Institution Rating:
A+5.0 ★Texas Ratio: 2.01%
305 S Main St, Freeman, SD 57029
Traditional IRA Savings
3.25%
$50
▼
Rate3.20%
Min Deposit$50
Min Balance—
UpdatedMar 21, 2026
Details
SNB Security National Bank of SD
Institution Rating:
A+5.0 ★Texas Ratio: 0.00%
325 Dakota Dunes Blvd, Dakota Dunes, SD 57049
Sidekick Savings
3.25%
$0
▼
Rate3.20%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Savings+
3.00%
$100
▼
Rate0.00%
Min Deposit$100
Min Balance—
UpdatedMar 24, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Savings
3.00%
$0
▼
Rate2.96%
Min Deposit$0
Min Balance—
UpdatedMar 24, 2026
Details
Heritage Bank N.A.
Institution Rating:
A5.0 ★Texas Ratio: 6.65%
140 N Phillips Ave, Sioux Falls, SD 57104
JUMBO SAVINGS ACCOUNT
2.77%
$0
▼
Rate2.74%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
Area Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.54%
2324 8TH AVE NE, ABERDEEN, SD 57401
ROTH IRA SHARES
2.53%
$0
▼
Rate0.00%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
Area Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.54%
2324 8TH AVE NE, ABERDEEN, SD 57401
EDUCATION IRA SHARES
2.53%
$0
▼
Rate0.00%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
HIGHMARK
Institution Rating:
A5.0 ★Texas Ratio: 11.71%
725 5th St, Rapid City, SD 57701
Money Market Savings
2.50%
$0
▼
Rate2.47%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Savings
2.50%
$0
▼
Rate2.47%
Min Deposit$0
Min Balance—
UpdatedMar 24, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Savings+
2.50%
$100
▼
Rate0.00%
Min Deposit$100
Min Balance—
UpdatedMar 24, 2026
Details
First Dakota National Bank
Institution Rating:
A+5.0 ★Texas Ratio: 1.06%
201 N Courtland St, Chamberlain, SD 57325
eSavings Account Rate1
2.37%
$0
▼
Rate2.35%
Min Deposit$0
Min Balance—
UpdatedMar 18, 2026
Details
Heritage Bank N.A.
Institution Rating:
A5.0 ★Texas Ratio: 6.65%
140 N Phillips Ave, Sioux Falls, SD 57104
Health Savings Account (HSA)
2.02%
$0
▼
Rate2.00%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Savings
2.00%
$0
▼
Rate1.98%
Min Deposit$0
Min Balance—
UpdatedMar 24, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Savings+
2.00%
$100
▼
Rate0.00%
Min Deposit$100
Min Balance—
UpdatedMar 24, 2026
Details
First Premier Bank
Institution Rating:
A+5.0 ★Texas Ratio: 0.54%
503 Main Ave, Lake Norden, SD 57248
PREMIER Kids Club Savings Account
1.81%
$50
▼
Rate1.80%
Min Deposit$50
Min Balance—
UpdatedMar 18, 2026
Details
Heritage Bank N.A.
Institution Rating:
A5.0 ★Texas Ratio: 6.65%
140 N Phillips Ave, Sioux Falls, SD 57104
JUMBO SAVINGS ACCOUNT
1.53%
$0
▼
Rate1.52%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
SNB Security National Bank of SD
Institution Rating:
A+5.0 ★Texas Ratio: 0.00%
325 Dakota Dunes Blvd, Dakota Dunes, SD 57049
Money Market Gold Plus Savings
1.50%
$0
▼
Rate1.49%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
HIGHMARK
Institution Rating:
A5.0 ★Texas Ratio: 11.71%
725 5th St, Rapid City, SD 57701
Money Market Savings
1.50%
$0
▼
Rate1.49%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
First National Bank in Philip
Institution Rating:
A+5.0 ★Texas Ratio: 0.07%
127 Main St, Faith, SD 57626
Regular Savings
1.36%
$0
▼
Rate1.35%
Min Deposit$0
Min Balance—
UpdatedMar 23, 2026
Details
First National Bank in Philip
Institution Rating:
A+5.0 ★Texas Ratio: 0.07%
127 Main St, Faith, SD 57626
Health Savings
1.26%
$0
▼
Rate1.25%
Min Deposit$0
Min Balance—
UpdatedMar 23, 2026
Details
Consumers Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.28%
301 highway 18 west, Gregory, SD 57533 2203
Savings Share Accounts
1.26%
$0
▼
Rate1.25%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
$25,000.00 and over
Consumers Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.28%
301 highway 18 west, Gregory, SD 57533 2203
IRA Savings Accounts
1.26%
$0
▼
Rate1.25%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
N/A
Area Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.54%
2324 8TH AVE NE, ABERDEEN, SD 57401
SUPER SHARES
1.01%
$0
▼
Rate0.00%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
Richland State Bank
Institution Rating:
A+5.0 ★Texas Ratio: 0.00%
602 1st St, Bruce, SD 57220
Passbook Savings
1.01%
$0
▼
Rate1.00%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
HIGHMARK
Institution Rating:
A5.0 ★Texas Ratio: 11.71%
725 5th St, Rapid City, SD 57701
Money Market Savings
1.00%
$0
▼
Rate1.00%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
Merchants State Bank
Institution Rating:
A+5.0 ★Texas Ratio: 2.01%
305 S Main St, Freeman, SD 57029
Money Market Savings Account
1.00%
$2,500
▼
Rate0.99%
Min Deposit$2,500
Min Balance—
UpdatedMar 21, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Simply Savings
1.00%
$0
▼
Rate1.00%
Min Deposit$0
Min Balance—
UpdatedMar 24, 2026
Details
Norstar Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 0.02%
515 Vander Horck St, Britton, SD 57430
Pee Wee Penguin Shares
1.00%
$0
▼
Rate1.00%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
For children under 12 years of age
Fort Randall Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.33%
100 W 7th Street, Platte, SD 57369
Share IRAs
1.00%
$0
▼
Rate1.00%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
Richland State Bank
Institution Rating:
A+5.0 ★Texas Ratio: 0.00%
602 1st St, Bruce, SD 57220
Passbook Savings
0.90%
$0
▼
Rate0.90%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
Richland State Bank
Institution Rating:
A+5.0 ★Texas Ratio: 0.00%
602 1st St, Bruce, SD 57220
Passbook Savings
0.80%
$0
▼
Rate0.80%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
OAB One American Bank
Institution Rating:
A+5.0 ★Texas Ratio: 3.42%
549 Broadway St, Centerville, SD 57014
Simply Savings
0.75%
$0
▼
Rate0.75%
Min Deposit$0
Min Balance—
UpdatedMar 24, 2026
Details
Area Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.54%
2324 8TH AVE NE, ABERDEEN, SD 57401
SUPER SHARES
0.75%
$0
▼
Rate0.00%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
Fort Randall Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.33%
100 W 7th Street, Platte, SD 57369
Christmas Club Shares
0.75%
$0
▼
Rate0.75%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
Interfaith Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.60%
815 Columbus St, Rapid City, SD 57701
Coverdell Education Savings (Variable)
0.75%
$1
▼
Rate0.75%
Min Deposit$1
Min Balance—
UpdatedMar 24, 2026
Details
Norstar Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 0.02%
515 Vander Horck St, Britton, SD 57430
Shares
0.75%
$0
▼
Rate0.75%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
Interfaith Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.60%
815 Columbus St, Rapid City, SD 57701
Traditional/Roth IRA Shares (Variable)
0.75%
$0
▼
Rate0.75%
Min Deposit$0
Min Balance—
UpdatedMar 24, 2026
Details
Area Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.54%
2324 8TH AVE NE, ABERDEEN, SD 57401
SECONDARY SHARES
0.75%
$0
▼
Rate0.00%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
Area Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.54%
2324 8TH AVE NE, ABERDEEN, SD 57401
REGULAR SHARES
0.75%
$5
▼
Rate0.00%
Min Deposit$5
Min Balance—
UpdatedMar 25, 2026
Details
Richland State Bank
Institution Rating:
A+5.0 ★Texas Ratio: 0.00%
602 1st St, Bruce, SD 57220
Passbook Savings
0.70%
$0
▼
Rate0.70%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
Bank Midwest
Institution Rating:
A+5.0 ★Texas Ratio: 1.45%
225 S Minnesota Ave, Sioux Falls, SD 57104
Great Rate Savings
0.65%
$100
▼
Rate0.65%
Min Deposit$100
Min Balance—
UpdatedMar 25, 2026
Details
First Dakota National Bank
Institution Rating:
A+5.0 ★Texas Ratio: 1.06%
201 N Courtland St, Chamberlain, SD 57325
Statement Savings Account Rate1
0.65%
$0
▼
Rate0.65%
Min Deposit$0
Min Balance—
UpdatedMar 18, 2026
Details
Fort Randall Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.33%
100 W 7th Street, Platte, SD 57369
Money Market Savings
0.50%
$0
▼
Rate0.50%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
Fort Randall Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.33%
100 W 7th Street, Platte, SD 57369
Share Savings
0.50%
$0
▼
Rate0.50%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
Avanti Federal Credit Union
Institution Rating:
B+4.8 ★Texas Ratio: 17.32%
1620 4th St NE, Watertown, SD 57201 8604
Regular Shares/Savings
0.30%
$0
▼
Rate0.30%
Min Deposit$0
Min Balance—
UpdatedMar 16, 2026
Details
East River Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 3.86%
220 S Harth Ave, Madison, SD 57042 2916
Health Savings Account
0.30%
$0
▼
Rate0.30%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
Consumers Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.28%
301 highway 18 west, Gregory, SD 57533 2203
Savings Share Accounts
0.25%
$0
▼
Rate0.25%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
Under $25,000.00
East River Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 3.86%
220 S Harth Ave, Madison, SD 57042 2916
Kasasa Saver - Savings Account
0.25%
$0
▼
Rate0.25%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
Qualifying balance up to $10,000.00
Sentinel Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 4.56%
2723 LeMay Blvd, Ellsworth AFB, SD 57706
IRA Share Account
0.25%
$0
▼
Rate0.25%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
Siouxland Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 3.96%
327 Dakota Dunes Blvd, Dakota Dunes, SD 57049
Christmas Savings
0.20%
$10
▼
Rate0.20%
Min Deposit$10
Min Balance—
UpdatedMar 21, 2026
Details
Siouxland Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 3.96%
327 Dakota Dunes Blvd, Dakota Dunes, SD 57049
Regular Savings
0.20%
$10
▼
Rate0.20%
Min Deposit$10
Min Balance—
UpdatedMar 21, 2026
Details
(Dividends paid 12/31/2025)
Siouxland Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 3.96%
327 Dakota Dunes Blvd, Dakota Dunes, SD 57049
Variable IRA Savings
0.20%
$100
▼
Rate0.20%
Min Deposit$100
Min Balance—
UpdatedMar 21, 2026
Details
Sentinel Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 4.56%
2723 LeMay Blvd, Ellsworth AFB, SD 57706
Share Account Tier 4
0.15%
$0
▼
Rate0.15%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
Dakotaland Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 3.55%
1371 Dakota Ave S, Huron, SD 57350
Regular Share Savings
0.10%
$0
▼
Rate0.00%
Min Deposit$0
Min Balance—
UpdatedMar 25, 2026
Details
compounded monthly
Interfaith Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.60%
815 Columbus St, Rapid City, SD 57701
Regular/Special Share Savings Accounts
0.10%
$0
▼
Rate0.10%
Min Deposit$0
Min Balance—
UpdatedMar 24, 2026
Details
Fort Randall Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 1.33%
100 W 7th Street, Platte, SD 57369
Share Draft
0.10%
$0
▼
Rate0.10%
Min Deposit$0
Min Balance—
UpdatedMar 20, 2026
Details
Average daily balance over $100.00
Sentinel Federal Credit Union
Institution Rating:
A+5.0 ★Texas Ratio: 4.56%
2723 LeMay Blvd, Ellsworth AFB, SD 57706
Share Account Tier 2
0.10%
$0
▼
Rate0.10%
Min Deposit$0
Min Balance—
UpdatedMar 21, 2026
Details
Powered by
MonitorBankRates
The Annual Percentage Yields (APYs) displayed are based on the highest APY offered for the specified deposit amount or less. Rates may change without prior notice.
Banks and Credit Unions: If you identify an incorrect rate or wish to request the removal of your institution’s data, please contact us here.
Banks and Credit Unions: If you identify an incorrect rate or wish to request the removal of your institution’s data, please contact us here.
South Dakota Savings Rate Trends
Compare local South Dakota savings rate quotes against the statewide average
Weekly savings rate averages tracked across our database of 8,500+ banks and credit unions — updated every evening.
High-Yield Savings — SD Avg
0.032%
▼ 1.449 from last week
South Dakota high-yield savings rates fell 1.449 points this week to 0.032% APY, down from 1.482% last week.
Standard Savings — SD Avg
0.301%
▼ 0.102 from last week
South Dakota standard savings rates fell 0.102 points this week to 0.301% APY, down from 0.403% last week.
As of Mar 26, 2026 •
Rate data sourced from 8,500+ monitored institutions
Powered by MonitorBankRates
Methodology & Data Sources
Direct-Sourced & Verified Savings Rate Data: We aggregate savings account rates for South Dakota directly from the official websites of banks and credit unions using our proprietary rate aggregation technology and a dedicated team of rate updaters. Every savings rate displayed on MonitorBankRates.com is highly accurate and trustworthy.
Local, Regional, and National Coverage: Our systems constantly monitor the market to provide a complete picture of available yields in South Dakota. We feature a comprehensive mix of institutions — from neighborhood credit unions and competitive regional banks to large national institutions available to savers in SD.
Daily Updates & Time-Stamped Accuracy: Our rate updaters verify and update savings rates daily. Because savings account yields can fluctuate rapidly, every product listed features its own specific “last updated” date, giving you complete transparency.
Frequently Asked Questions about Savings Accounts in South Dakota
What is a High-Yield Savings Account (HYSA)?
A High-Yield Savings Account (HYSA) typically pays significantly higher interest than standard accounts at national brick-and-mortar banks. These accounts, often found at online banks or local credit unions in South Dakota, help your money grow faster through a higher APY.
Are savings accounts in South Dakota safe?
Yes, as long as the institution is FDIC insured (for banks) or NCUA insured (for credit unions). This provides federal protection for your deposits in South Dakota up to $250,000 per depositor, per institution.
How often do savings rates change in South Dakota?
Savings rates are variable and can change at any time based on market conditions and Federal Reserve decisions. We update our local South Dakota rate tables daily to ensure you see the most current high-yield options.
Do I need a minimum deposit to open a savings account?
It depends on the bank. Many online high-yield savings accounts have no minimum deposit requirement, while some traditional banks in South Dakota may require $25–$100 to open an account.
What is the difference between a Savings Account and a Money Market Account?
Both pay interest and are federally insured. Money Market Accounts (MMAs) often come with check-writing privileges or a debit card, making them more flexible, whereas standard savings accounts typically do not.
Are online banks better than local banks in South Dakota?
Online banks often offer higher APYs because they have lower overhead costs. However, local banks in South Dakota offer in-person customer service, which some customers prefer.
How do I open a savings account in South Dakota?
You can open a savings account online or in-person. You will generally need a government-issued ID, your Social Security number, and an initial deposit to get started.
Best Savings Rates in South Dakota
Here are recent savings rates observed in South Dakota:
- OAB One American Bank
Savings — 3.60% APY - Bluestone Federal Credit Union
12 MO VARIABLE SHARE CERT. — 3.30% APY - Merchants State Bank
Traditional IRA Savings — 3.25% APY - SNB Security National Bank of SD
Sidekick Savings — 3.25% APY - Heritage Bank N.A.
JUMBO SAVINGS ACCOUNT — 2.77% APY
Savings Rates reflect actual verified offers from banks and credit unions actively accepting deposits in South Dakota. Your final available rate may depend on deposit amount and daily market movements. Last Updated and Verified: March 25, 2026
Cities in South Dakota
