Largest banks and credit unions in Iowa by assets
| Name | City | Type | Total assets ($) |
|---|---|---|---|
| Greenstate | North Liberty | Credit union | 10,946,944,457 |
| Principal Bank | Des Moines | Bank | 9,836,922,000 |
| Veridian | Waterloo | Credit union | 9,152,920,868 |
| Bankers Trust Company | Des Moines | Bank | 7,832,471,000 |
| Hills Bank and Trust Company | Hills | Bank | 4,794,969,000 |
| West Bank | West Des Moines | Bank | 4,029,129,000 |
| Dupaco Community | Dubuque | Credit union | 3,545,329,241 |
| Northwest Bank | Spencer | Bank | 2,999,288,000 |
| Cedar Rapids Bank and Trust Company | Cedar Rapids | Bank | 2,900,018,000 |
| Quad City Bank and Trust Company | Bettendorf | Bank | 2,774,878,000 |
| Fidelity Bank & Trust | Dubuque | Bank | 2,603,348,000 |
| United Bank of Iowa | Ida Grove | Bank | 2,495,750,000 |
| Bank Iowa | West Des Moines | Bank | 2,348,695,000 |
| Luana Savings Bank | Luana | Bank | 2,341,323,000 |
| Central Bank | Storm Lake | Bank | 2,290,918,000 |
| First Citizens Bank | Mason City | Bank | 1,797,291,000 |
| Community State Bank | Ankeny | Bank | 1,746,309,000 |
| Availa Bank | Carroll | Bank | 1,732,398,000 |
| Lincoln Savings Bank | Reinbeck | Bank | 1,712,237,000 |
| CBI Bank & Trust | Muscatine | Bank | 1,703,404,000 |
| The Security National Bank of Sioux City, Iowa | Sioux City | Bank | 1,690,263,000 |
| Farmers State Bank | Waterloo | Bank | 1,598,373,000 |
| Collins Community | Cedar Rapids | Credit union | 1,527,322,740 |
| American State Bank | Sioux Center | Bank | 1,447,885,000 |
| Bank Midwest | Spirit Lake | Bank | 1,345,670,000 |
The full list includes every bank or credit union in Iowa with street address, ZIP and phone number, plus every other state.
Iowa cities with the most banks and credit unions
- Des Moines: 11
- Cedar Rapids: 9
- Dubuque: 8
- West Des Moines: 8
- Marshalltown: 6
- Mason City: 6
- Ames: 5
- Ottumwa: 4
- Sioux City: 4
- Spencer: 4
Charter types in Iowa
- State bank (not Fed member): 165
- State credit union: 65
- State bank (Fed member): 47
- National bank: 11
- Federal savings bank: 2
- Federal credit union: 1
Where does this data come from?
FDIC BankFind institution data (October 2026) and NCUA credit union call report data (June 30, 2026). Banks list their website and credit unions list their main office phone. Phone numbers are main lines published by the government. No personal names or personal contact details are included.