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American Bank, N.A. Locations & Branches Le Mars, Iowa
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American Bank, N.A. operates 2 branches from its headquarters in Le Mars, IA, .
American Bank, N.A. branch network
Both branches are in IOWA, across 2 cities. Its largest office by deposits is its main office in Le Mars, IA, with $324.5M (72.9% of its branch deposits). It had the same number of branches on June 30, 2025.
American Bank, N.A. at a glance
Its CET1 capital ratio was 11.95% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $533.0M
- CET1 ratio, Q2 2026
- 11.95%
- Deposit insurance
- FDIC
- Regulator
- OCC
- Latest call report
- Q2 2026, FFIEC 041
- Established
- 1887
Full financial profile · Is American Bank, N.A. safe? · American Bank, N.A. call report · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Le Mars, IA (1 branch) | 2 of 5 | 37.0% | $324.5M |
| State: IA (2 branches) | 63 of 261 | 0.3% | $445.0M |
Ranked by total assets among banks headquartered in the state: Largest banks in Iowa.
Share by county and metro area
American Bank, N.A.'s share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Plymouth, IA (2 branches) | 1 of 8 | 31.2% | $445.0M | $1.43B |
Metro area share: not on file. None of this bank's branches sit in a metropolitan or micropolitan area in the FDIC branch directory.
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| American Bank, N.A. (main office) | Le Mars, IA | 51031 | $324.5M |
| Remsen Branch | Remsen, IA | 51050 | $120.5M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 5800) · FFIEC NIC profile (RSSD 345345)