Centerville, SD
Bank One American Bank
One American Bank is a federally insured bank based in Centerville, South Dakota.
- Type
- Bank
- Charter
- State-chartered commercial bank, not a Federal Reserve member
- Primary regulator
- FDIC
- Established
- January 1, 1883
- Headquarters
- Centerville, SD
- FDIC certificate #
- 6078
- Fed RSSD ID
- 95051
- Holding company
- One American Financial Corp
- Website
- www.oneamericanbank.com
$360.3M
Total assets Data as of Q1 2026
$240.6M
Total deposits Data as of Q1 2026
3
Branch locations Data as of Q1 2026
-$1.7M
Net income Data as of Q1 2026
-1.94%
Return on assets Data as of Q1 2026
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026
Branches by state
One American Bank operates 3 branch locations in South Dakota. Select a state to drill down to its towns and individual branches.
Ownership
One American Bank is owned by One American Financial Corp. See the full ownership & merger history.
One American Bank financial summary
Other banks in South Dakota
Federally insured banks headquartered in South Dakota, by total assets.
- Citibank, National Association $1.93T
- Wells Fargo Bank, National Association $1.85T
- The Bancorp Bank, National Association $9.9B
- Pathward, National Association $7.11B
- First Bank & Trust $4.87B
- Dacotah Bank $4.87B
- First PREMIER Bank $3.55B
- First Dakota National Bank $3.3B
Similar-size banks
Institutions close to One American Bank’s $360.3M in assets.
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- Milestone Bank $360.5M
- AmeriFirst Bank $360.6M
- First National Bank in Port Lavaca $359.9M
- Heritage Bank National Association $360.8M
- OSB Community Bank $360.8M