Sioux Center, IA
Bank American State Bank
American State Bank is a federally insured bank based in Sioux Center, Iowa.
- Type
- Bank
- Charter
- State-chartered commercial bank, not a Federal Reserve member
- Primary regulator
- FDIC
- Established
- September 1, 1913
- Headquarters
- Sioux Center, IA
- FDIC certificate #
- 228
- Fed RSSD ID
- 735441
- Holding company
- Ambank Co Inc
- Website
- www.ambankiowa.com
$1.46B
Total assets Data as of Q1 2026
$1.24B
Total deposits Data as of Q1 2026
11
Branch locations Data as of Q1 2026
$5.1M
Net income Data as of Q1 2026
1.37%
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
American State Bank operates 11 branch locations across 2 states. Select a state to drill down to its towns and individual branches.
Ownership
American State Bank is owned by Ambank Co Inc, which also owns 1 other institution. See the full ownership & merger history.
American State Bank financial summary
Other banks in Iowa
Federally insured banks headquartered in Iowa, by total assets.
- Principal Bank $9.6B
- Bankers Trust Company $7.47B
- Hills Bank and Trust Company $4.67B
- West Bank $4.01B
- Quad City Bank and Trust Company $3.09B
- Northwest Bank $2.97B
- Cedar Rapids Bank and Trust Company $2.87B
- Fidelity Bank & Trust $2.58B
Similar-size banks
Institutions close to American State Bank’s $1.46B in assets.
- North State Bank $1.46B
- Providence Bank $1.46B
- Saco & Biddeford Savings Institution $1.46B
- Washington Financial Bank $1.46B
- Northwest Bank $1.46B
- Riverview Bank $1.46B