Largest banks and credit unions in Wisconsin by assets
| Name | City | Type | Total assets ($) |
|---|---|---|---|
| Associated Bank, National Association | Green Bay | Bank | 51,756,540,000 |
| Nicolet National Bank | Green Bay | Bank | 15,390,715,000 |
| Summit | Madison | Credit union | 8,522,236,354 |
| Landmark | Brookfield | Credit union | 7,905,062,411 |
| Johnson Bank | Racine | Bank | 7,068,332,000 |
| Community First | Appleton | Credit union | 6,839,334,549 |
| University Of Wisconsin | Madison | Credit union | 6,716,051,700 |
| Bank First, N.A. | Manitowoc | Bank | 5,944,186,000 |
| Royal | Eau Claire | Credit union | 5,913,397,393 |
| John Deere Financial, f.s.b. | Middleton | Bank | 4,934,911,000 |
| Town Bank, National Association | Hartland | Bank | 4,708,678,000 |
| First Business Bank | Madison | Bank | 4,410,309,000 |
| Covantage | Antigo | Credit union | 4,206,508,951 |
| Connexus | Wausau | Credit union | 4,135,662,509 |
| Educators | Racine | Credit union | 3,985,562,700 |
| Fox Communities | Appleton | Credit union | 3,387,970,811 |
| Lake Ridge Bank | Middleton | Bank | 3,353,305,000 |
| Altra | Onalaska | Credit union | 3,141,431,760 |
| National Exchange Bank and Trust | Fond Du Lac | Bank | 2,890,553,000 |
| Capital | Green Bay | Credit union | 2,788,151,425 |
| One Community Bank | Oregon | Bank | 2,627,958,000 |
| North Shore Bank | Brookfield | Bank | 2,608,511,000 |
| Bank Five Nine | Oconomowoc | Bank | 2,532,644,000 |
| WaterStone Bank, SSB | Wauwatosa | Bank | 2,252,894,000 |
| Westconsin | Menomonie | Credit union | 2,245,897,626 |
The full list includes every bank or credit union in Wisconsin with street address, ZIP and phone number, plus every other state.
Wisconsin cities with the most banks and credit unions
- Madison: 12
- Wausau: 8
- Green Bay: 7
- Milwaukee: 7
- La Crosse: 6
- Appleton: 5
- Marshfield: 5
- Oshkosh: 5
- Superior: 5
- Brookfield: 4
Charter types in Wisconsin
- State bank (not Fed member): 98
- State credit union: 96
- National bank: 18
- State bank (Fed member): 15
- State savings bank: 12
- Federal savings bank: 8
- Federal credit union: 2
- State savings and loan: 2
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.