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First National Bank Ames, Iowa Locations & Branches Ames, Iowa
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First National Bank Ames, Iowa operates 9 branches from its headquarters in Ames, IA, . Its main office is at 405 5th St, Ames, IA 50010.
First National Bank Ames, Iowa branch network
All 9 branches are in IOWA, across 4 cities. Ames, IA has the most of its branches, 3. Its largest office by deposits is the First National Bank, Ames, Iowa office in Ames, IA, with $674.3M (70.6% of its branch deposits). It had the same number of branches on June 30, 2025.
First National Bank Ames, Iowa at a glance
Its CET1 capital ratio was 15.24% at Q3 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q3 2026
- $1.06B
- CET1 ratio, Q3 2026
- 15.24%
- Deposit insurance
- FDIC
- Regulator
- OCC
- Latest call report
- Q3 2026, FFIEC 041
- Established
- 1903
Full financial profile · Is First National Bank Ames, Iowa safe? · First National Bank Ames, Iowa 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: Ames, IA (3 branches) | 1 of 15 | 31.8% | $674.3M |
| State: IA (9 branches) | 29 of 261 | 0.7% | $955.6M |
Ranked by total assets among banks headquartered in the state: Largest banks in Iowa.
Share by county and metro area
First National Bank Ames, Iowa'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 |
|---|---|---|---|---|
| Story, IA (3 branches) | 1 of 21 | 21.7% | $674.3M | $3.10B |
| Polk, IA (3 branches) | 17 of 39 | 0.6% | $180.4M | $32.18B |
| Clarke, IA (2 branches) | 2 of 3 | 32.3% | $100.8M | $312.1M |
| Dallas, IA (1 branch) | 28 of 28 | — | $0 | $2.54B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Ames, IA (3 branches) | 1 of 26 | 17.6% | $674.3M | $3.83B |
| Des Moines-West Des Moines, IA (4 branches) | 30 of 57 | 0.5% | $180.4M | $37.99B |
Deposits by county
Every county where First National Bank Ames, Iowa has branches (4 in all), from the June 30, 2026 Summary of Deposits: the bank's deposits, its share of all FDIC-insured deposits in the county, its rank and its branch count there. Largest deposits first.
Show all 4 counties
| County | Branches | Deposits | Share | Rank |
|---|---|---|---|---|
| Story, IA | 3 | $674.3M | 21.7% | 1 of 21 |
| Polk, IA | 3 | $180.4M | 0.6% | 17 of 39 |
| Clarke, IA | 2 | $100.8M | 32.3% | 2 of 3 |
| Dallas, IA | 1 | $0 | — | 28 of 28 |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| First National Bank, Ames, Iowa | Ames, IA | 50010 | $674.3M |
| Osceola Br | Osceola, IA | 50213 | $100.8M |
| West Glen Branch | West Des Moines, IA | 50266 | $91.8M |
| Ankeny Branch | Ankeny, IA | 50023 | $88.7M |
| North Grand Branch | Ames, IA | 50010 | $0 |
| Valley Junction Branch | West Des Moines, IA | 50265 | $0 |
| West Ames Branch | Ames, IA | 50014 | $0 |
| Osceola Branch | Osceola, IA | 50213 | $0 |
| Edgewater Wesleylife Community Branch | West Des Moines, IA | 50266 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 1545) · FFIEC NIC profile (RSSD 820048)