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Frontier Bank Sioux Falls, SD Rates & Review October 2026

Frontier Bank Sioux Falls, SD's top rate as of October 7, 2026 is 3.00% APY on checking, according to rates verified by MonitorBankRates. MonitorBankRates evaluates the financial stability of Frontier Bank Sioux Falls, SD with a 4.7 Star Rating, an A+ Overall Health Grade, and a Texas Ratio of 0.00%. Rates last updated and verified on 10/07/2026.

Frontier Bank Sioux Falls, SD 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 Frontier Bank Sioux Falls, SD? Share your experience about Frontier Bank Sioux Falls, SD by leaving a review below, or read customer reviews before you decide to use Frontier Bank Sioux Falls, SD.

MonitorBankRates Verified Healthy Badge Q2 2026 Verified Healthy Q2 2026 Use This Badge on Your Bank Website
Overall Health & Safety Grade ?
A+
Exceptional Health Score: 97/100
MonitorBankRates Rating ?
4.7
Excellent Out of 5.0 Stars
Texas Ratio ?
0.00%
Perfect Lower than avg
Health Trend ?
Very strong 12 quarters
Full history ›
Frontier Bank
101 S Phillips Ave
Sioux Falls, SD 57104
https://www.frontierbank.com
MemberFDIC
Customer Reviews
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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.

Frontier Bank Sioux Falls, SD Business Checking Rates

Product Rate APY View More
Business Checking - 3.00%
Min Balance $250,000
Details APY accurate as of 9/18/2025 and subject to change. Balances exceeding $250,000 receive APY of 3.00%. Account approval requirements apply. Fees may reduce earnings. See a Frontier Bank Customer Service Representative for more information.
Last Updated 10/07/2026
Rate History
No change since Oct 7, 2026 · 3.00% APY
2.50%3.00%3.50%Oct 7, 2026: 3.00% APYOct 7, 2026Oct 13, 2026
Institution Ratings
4.7
Star Rating
A+
Health Grade
◈ Texas Ratio: 0.00%
Business Checking - 2.50%
Min Balance $200,000
Details APY accurate as of 9/18/2025 and subject to change. Balances ($200,000-249,999.99 earn 2.50%). Account approval requirements apply. Fees may reduce earnings. See a Frontier Bank Customer Service Representative for more information.
Last Updated 10/07/2026
Rate History
No change since Oct 7, 2026 · 2.50% APY
2.00%2.50%3.00%Oct 7, 2026: 2.50% APYOct 7, 2026Oct 13, 2026
Institution Ratings
4.7
Star Rating
A+
Health Grade
◈ Texas Ratio: 0.00%
Business Checking - 2.00%
Min Balance $150,000
Details APY accurate as of 9/18/2025 and subject to change. Balances ($150,000-199,999.99 earn 2.00%). Account approval requirements apply. Fees may reduce earnings. See a Frontier Bank Customer Service Representative for more information.
Last Updated 10/07/2026
Rate History
No change since Oct 7, 2026 · 2.00% APY
1.50%2.00%2.50%Oct 7, 2026: 2.00% APYOct 7, 2026Oct 13, 2026
Institution Ratings
4.7
Star Rating
A+
Health Grade
◈ Texas Ratio: 0.00%
Business Checking - 1.50%
Min Balance $100,000
Details APY accurate as of 9/18/2025 and subject to change. Balances ($100,000-149,999.99 earn 1.50%). Account approval requirements apply. Fees may reduce earnings. See a Frontier Bank Customer Service Representative for more information.
Last Updated 10/07/2026
Rate History
No change since Oct 7, 2026 · 1.50% APY
1.00%1.50%2.00%Oct 7, 2026: 1.50% APYOct 7, 2026Oct 13, 2026
Institution Ratings
4.7
Star Rating
A+
Health Grade
◈ Texas Ratio: 0.00%
Business Checking - 1.25%
Min Balance $50,000
Details APY accurate as of 9/18/2025 and subject to change. Balances ($50,000-99,999.99 earn 1.25%). Account approval requirements apply. Fees may reduce earnings. See a Frontier Bank Customer Service Representative for more information.
Last Updated 10/07/2026
Rate History
No change since Oct 7, 2026 · 1.25% APY
0.75%1.25%1.75%Oct 7, 2026: 1.25% APYOct 7, 2026Oct 13, 2026
Institution Ratings
4.7
Star Rating
A+
Health Grade
◈ Texas Ratio: 0.00%

Frontier Bank Sioux Falls, SD Other Rates

Product Rate Points APY/APR Term View More
Perks - - 4.05%
Min Balance $25,000
Details Earn 4.05% APY* on balances up to $25,000- that's $1,000+ per year in interest; Automatic refunds on ATM fees nationwide- up to $20 monthly***!; Pair with our high interest savings- BIG DEAL Saver to earn even more!; No minimum balance; No monthly service charge; FREE online banking; FREE bill pay; FREE mobile banking with mobile deposit
FREE eStatements
FREE initial ATM/Debit Card; FREE thank you gift
Last Updated 10/07/2026
Rate History
No change since Sep 7, 2026 · 4.05% APY · checked 8 times
3.55%4.05%4.55%Sep 7, 2026: 4.05% APYSep 7, 2026Oct 13, 2026
Institution Ratings
4.7
Star Rating
A+
Health Grade
◈ Texas Ratio: 0.00%
Perks - - 3.00%
Min Balance $250,000
Details Earn up to 3.00% APY on balances exceeding $250,000
Last Updated 10/07/2026
Rate History
No change since Sep 7, 2026 · 3.00% APY · checked 8 times
2.50%3.00%3.50%Sep 7, 2026: 3.00% APYSep 7, 2026Oct 13, 2026
Institution Ratings
4.7
Star Rating
A+
Health Grade
◈ Texas Ratio: 0.00%

Financial Health History

Frontier Bank Sioux Falls, SD’s Texas Ratio stayed near 0.00% in Q3 2023 to 0.00% in Q2 2026, so its financial health has stayed very strong over the past 12 quarters. Over the same period its Star Rating moved from 3.5 to 4.7 and its Health Grade from B to A+. Lower Texas Ratios are healthier — this bank’s entire history sits far below the 15% threshold for the MBR Verified Healthy badge. Hover over or tap a point for that quarter’s figures.

0% 1.0★ 0.3% 2.0★ 0.5% 3.0★ 0.8% 4.0★ 1% 5.0★ Healthy zone – entire history below the 15% limit 0.00% B Q3 2023 A- Q4 2023 A- Q1 2024 A Q2 2024 A Q3 2024 A- Q4 2024 A- Q1 2025 B+ Q2 2025 A Q3 2025 A+ Q4 2025 A Q1 2026 0.00% A+ Q2 2026
Swipe the chart sideways to see every quarter.
Texas Ratio, left axis (lower is healthier)MBR Star Rating, right axis (1 to 5)Health Grade
Powered by MonitorBankRates

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
QuarterTotal assetsTexas RatioStar RatingHealth Grade
June 30, 2026$349M0.00%4.7A+
March 31, 2026$345M0.00%4.6A
December 31, 2025$342M0.00%4.8A+
September 30, 2025$341M0.02%4.5A
June 30, 2025$347M0.00%4.0B+
March 31, 2025$338M0.00%4.1A-
December 31, 2024$328M0.00%4.2A-
September 30, 2024$336M0.00%4.5A
June 30, 2024$326M0.00%4.3A
March 31, 2024$340M0.00%4.0A-
December 31, 2023$332M0.00%4.1A-
September 30, 2023$321M0.00%3.5B
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 Frontier Bank Sioux Falls, SD 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 Frontier Bank Sioux Falls, SD 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 Frontier Bank Sioux Falls, SD's official website for the most current offers and terms.

Bank Profile & Overview

Institution Name Frontier Bank Sioux Falls, SD
Bank Holding Company ROCK RIVERS BCORP
Address 101 S Phillips Ave, Sioux Falls, SD 57104  ·  Minnehaha
FDIC Certificate # 33922
Established 19940624
FDIC Insurance Date 19940624
Domestic Offices 5
Total Branches 5
Regulator OCC
FDIC Insured ✓ Yes — Up to $250,000

Financial Health & Assets

A+
Overall Health Grade Score: 97/100
4.7
Excellent Out of 5.0 Stars
0.00%
Texas Ratio Nat'l avg: 5.85%
Return on Assets (ROA) 0.4727%
Return on Equity (ROE) 7.0600%
Non-Performing Loans (NPL) 0.00%
Total Assets $349,155,000
Total Deposits $323,837,000
Equity Capital $23,509,000
Net Income $816,000
Headquarters Sioux Falls
Total Branches and Offices 5
Source: FDIC  |  Last Updated 06/30/2026
MonitorBankRates Verified Healthy Badge Q2 2026
Q2 2026 MBR Health & Safety Badge

Frontier Bank Sioux Falls, SD earned the Verified Healthy badge

Display this badge on your website to show visitors your Q2 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; when a new quarter is published, come back to this page for the updated code.

<a href="https://monitorbankrates.com/banks/frontier-bank-sioux-falls-sd-rates-review-33922">
  <img src="https://www.monitorbankrates.com/wp-content/uploads/badges/mbr-badge-tier-c-2026-q2.svg"
       alt="MonitorBankRates Verified Healthy Badge Q2 2026"
       width="160" height="160">
</a>
Learn more about the MBR Health & Safety Badge program on our methodology page.

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Frequently Asked Questions About Frontier Bank Sioux Falls, SD

How many branches does Frontier Bank Sioux Falls, SD operate?

Frontier Bank Sioux Falls, SD currently maintains approximately 5 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, Frontier Bank Sioux Falls, SD 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, Frontier Bank Sioux Falls, SD provides members with tools to manage their accounts and build a solid financial history.

Does Frontier Bank Sioux Falls, SD offer online and mobile banking?

Most modern institutions like Frontier Bank Sioux Falls, SD 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.frontierbank.com.