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iAdvertiser Disclosure
Advertiser Disclosure
Some institutions listed may have a business relationship with MonitorBankRates. Our proprietary systems independently track and verify all rates. Advertiser relationships do not influence our Safety Ratings, Star Ratings, Texas Ratio calculations, or the rates shown.
 OAB One American Bank Rates & Review March 2026
Content reviewed by
Brian McKay
Brian McKayFounder & Data ArchitectExpertise
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 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: March 24, 2026
OAB One American Bank's IRA Certificate of Deposit 12-Month rates are at 3.60%, 3-Month Certificate of Deposit rates are at 3.50%, 60-Month Certificate of Deposit rates are at 2.36%, 24-Month Certificate of Deposit rates are at 1.96%, IRA Certificate of Deposit 24-Month rates are at 1.96%. OAB One American Bank's savings rates are at 0.25%. MonitorBankRates evaluates the financial stability of OAB One American Bank with a 5.0 Star Rating, an A+ Overall Health Grade, and a Texas Ratio of 3.42%. Rates were last updated on 03/24/2026. OAB One American 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 OAB One American Bank? Share your experience about OAB One American Bank by leaving a review below, or read customer reviews before you decide to use OAB One American Bank. 
OAB One American Bank CD Rates
OAB One American Bank Savings Rates
OAB One American Bank Checking Rates
Methodology & Data SourcesMonitorBankRates Star Rating: Our rating for OAB One American 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 OAB One American 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 OAB One American Bank's official website for the most current offers and terms.
Bank Profile & Overview
Institution Name
OAB One American Bank
Bank Holding Company
ONE AMERICAN FINANCIAL CORP
Address
549 Broadway St,
Centerville, SD 57014 · Turner
Website
https://www.oneamericanbank.com
FDIC Certificate #
6078
Established
01/01/1883
FDIC Insurance Date
01/01/1934
Domestic Offices
3
Total Branches
3
Regulator
FDIC
FDIC Insured
✓ Yes — Up to $250,000
Financial Health & AssetsA+
Overall Health Grade
Score: 98/100
5.0
Exceptional
Out of 5.0 Stars
3.42%
Texas Ratio
Nat'l avg: 5.85%
Return on Assets (ROA)
-0.4714%
Return on Equity (ROE)
-5.8600%
Non-Performing Loans (NPL)
0.35%
Total Assets
$356,547,000
Total Deposits
$234,383,000
Equity Capital
$28,246,000
Net Income
$-5,625,000
Headquarters
Centerville
Total Offices
3
Source: FDIC | Last Updated 12/31/2025
Frequently Asked Questions About OAB One American BankIs OAB One American Bank a safe place to deposit money?Yes, OAB One American Bank is considered a safe financial institution. With a Texas Ratio of 3.4161997497688%, the institution's financial health is rated as excellent. Your accounts are federally insured by the FDIC (Federal Deposit Insurance Corporation) up to $250,000 per depositor, for each account ownership category. How many branches does OAB One American Bank operate?OAB One American Bank currently maintains approximately 3 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, OAB One American 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, OAB One American Bank provides members with tools to manage their accounts and build a solid financial history. Does OAB One American Bank offer online and mobile banking?Most modern institutions like OAB One American 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.oneamericanbank.com. Current OAB One American Bank Rates
Retrieved from our database of financial products. Rates subject to change.
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