Home › Iowa › American State Bank
American State Bank
✓ FDIC-insured · Active FDIC Certificate #228
American State Bank is an FDIC-insured state-chartered bank that is not a Federal Reserve member (supervised by the FDIC), headquartered in Sioux Center, Iowa, established in 1913. As of the 06/30/2026 FDIC call report, it reported $1.4B in total assets and $1.2B in deposits. FDIC location data lists 11 offices across 2 states and territories, with the most in Iowa (10). The FDIC classifies it as a community bank. It is owned by the holding company AMBANK CO INC (Sioux Center, IA).
Financial data as of the 06/30/2026 FDIC call report.
Branches by state
American State Bank has offices in 2 states and territories. Counts come from the FDIC's institution location records.
| State | Offices | Share |
|---|---|---|
| Iowa | 10 | 90.9% |
| South Dakota | 1 | 9.1% |
Branch locations
| American State Bank American State Bank · Full Service - Brick And Mortar | 525 N Main Ave Sioux Center, IA 51250 Map ↗ |
| American State Bank Granville Branch · Full Service - Brick And Mortar | 741 Broad St Granville, IA 51022 Map ↗ |
| American State Bank Hospers Branch · Full Service - Brick And Mortar | 100 2nd Ave N Hospers, IA 51238 Map ↗ |
| American State Bank Alvord Branch · Full Service - Brick And Mortar | 212 N Main St Alvord, IA 51230 Map ↗ |
| American State Bank Sioux Center Branch · Limited Service - Drive Thru/Detached Facility | 18 6th St Nw Sioux Center, IA 51250 Map ↗ |
| American State Bank Orange City Branch · Full Service - Brick And Mortar | 901 8th St Se Orange City, IA 51041 Map ↗ |
| American State Bank Hull Branch · Full Service - Brick And Mortar | 624 Main St Hull, IA 51239 Map ↗ |
| American State Bank Sioux Center South Branch · Full Service - Brick And Mortar | 16 20th Street Se Sioux Center, IA 51250 Map ↗ |
| American State Bank Sioux Center Trust Department Building Branch · Full Service - Brick And Mortar | 675 N Main Ave Sioux Center, IA 51250 Map ↗ |
| American State Bank Alton Branch · Full Service - Brick And Mortar | 208 10th St Alton, IA 51003 Map ↗ |
| American State Bank Cliff Ave Branch · Full Service - Brick And Mortar | 1201 E Cliff Pl Sioux Falls, SD 57108 Map ↗ |
Holding company: AMBANK CO INC
The FDIC lists AMBANK CO INC, based in Sioux Center, IA, as the top holding company for American State Bank. It also owns one other FDIC-insured bank:
- American Bank, National Association, Le Mars, IA ($533M in assets)
FDIC deposit insurance applies separately to each insured bank charter, even when they share a holding company. Confirm the charter before you spread deposits.
Similar-size banks in Iowa
Active FDIC-insured banks headquartered in Iowa with total assets closest to American State Bank's $1.4B. See all banks in Iowa.
| Bank | HQ city | Assets | Offices |
|---|---|---|---|
| Lincoln Savings Bank | Reinbeck | $1.7B | 16 |
| CBI Bank & Trust | Muscatine | $1.7B | 24 |
| The Security National Bank of Sioux City, Iowa | Sioux City | $1.7B | 10 |
| Farmers State Bank | Waterloo | $1.6B | 8 |
| Bank Midwest | Spirit Lake | $1.3B | 11 |
| Capra Bank | Dubuque | $1.3B | 7 |
| Iowa State Bank | Hull | $1.3B | 14 |
| Peoples Bank | Rock Valley | $1.3B | 10 |
American State Bank: common questions
Is American State Bank FDIC-insured?
Yes. American State Bank is an active FDIC-insured institution, FDIC Certificate #228. Deposits are insured up to $250,000 per depositor, per ownership category. You can confirm this on FDIC BankFind.
Where is American State Bank headquartered?
American State Bank is headquartered at 525 N Main Ave, Sioux Center, IA 51250, according to FDIC records.
How many branches does American State Bank have?
FDIC location data lists 11 offices for American State Bank in 2 states and territories. The most are in Iowa (10), followed by South Dakota (1).
Who owns American State Bank?
The FDIC lists AMBANK CO INC of Sioux Center, IA as the top holding company for American State Bank. The same holding company owns 1 other FDIC-insured bank.
Source: FDIC BankFind Suite (institution, location, and call report data). BankNearMe.com does not rank or rate banks.