There are 153 FDIC-insured banks headquartered in Wisconsin, holding $182.13B in combined assets and $143.66B in deposits, alongside 100 NCUA-insured credit unions. Every figure below comes from the most recent quarterly call report each institution filed with its regulator. Banks are ranked by total assets, which is the standard measure of institution size and the basis regulators use for peer grouping and for determining which capital rules apply.
Ranked by total assets. Branch counts are domestic offices. Click any institution for eight quarters of financial history, peer benchmarking against similarly sized banks, deposit market share by county, and leadership contacts.
| # | Bank | City | Assets | Deposits | Branches |
|---|---|---|---|---|---|
| 1 | Associated Bank, National Association | Green Bay | $51.76B | $40.12B | 218 |
| 2 | Nicolet National Bank | Green Bay | $15.39B | $12.95B | 119 |
| 3 | Johnson Bank | Racine | $7.07B | $5.63B | 32 |
| 4 | Bank First, N.A. | Manitowoc | $5.94B | $5.03B | 38 |
| 5 | John Deere Financial, f.s.b. | Middleton | $4.93B | $1.56B | 1 |
| 6 | Town Bank, National Association | Hartland | $4.71B | $3.81B | 26 |
| 7 | First Business Bank | Madison | $4.41B | $3.60B | 5 |
| 8 | Lake Ridge Bank | Middleton | $3.35B | $2.79B | 20 |
| 9 | National Exchange Bank and Trust | Fond Du Lac | $2.89B | $2.26B | 34 |
| 10 | One Community Bank | Oregon | $2.63B | $2.07B | 20 |
| 11 | North Shore Bank | Brookfield | $2.61B | $2.17B | 44 |
| 12 | Bank Five Nine | Oconomowoc | $2.53B | $2.10B | 19 |
| 13 | WaterStone Bank, SSB | Wauwatosa | $2.25B | $1.47B | 16 |
| 14 | National Bank of Commerce | Superior | $2.23B | $1.85B | 21 |
| 15 | IncredibleBank | Wausau | $2.10B | $1.78B | 19 |
| 16 | Tri City National Bank | Oak Creek | $1.95B | $1.75B | 26 |
| 17 | CCFBank National Association | Altoona | $1.81B | $1.58B | 22 |
| 18 | Horicon Bank | Horicon | $1.65B | $1.42B | 19 |
| 19 | Waukesha State Bank | Waukesha | $1.62B | $1.29B | 15 |
| 20 | The Park Bank | Madison | $1.54B | $1.25B | 10 |
| 21 | Peoples State Bank | Wausau | $1.50B | $1.19B | 12 |
| 22 | Bankers' Bank | Madison | $1.47B | $951.9M | 1 |
| 23 | Forward Bank | Marshfield | $1.28B | $1.04B | 15 |
| 24 | Citizens Bank | Mukwonago | $1.17B | $996.0M | 11 |
| 25 | Bank of Wisconsin Dells | Wisconsin Dells | $1.08B | $927.8M | 3 |
| 26 | Ixonia Bank | Ixonia | $1.08B | $679.8M | 7 |
| 27 | Great Midwest Bank, S.S.B. | Brookfield | $1.06B | $620.8M | 8 |
| 28 | Bank Cmg | Madison | $1.06B | $935.0M | 10 |
| 29 | Security Financial Bank | Durand | $1.04B | $827.5M | 8 |
| 30 | Prevail Bank | Medford | $1.03B | $786.8M | 9 |
| 31 | River Bank | Stoddard | $1.02B | $755.7M | 13 |
| 32 | The Port Washington State Bank | Port Washington | $1.01B | $926.9M | 8 |
| 33 | Peoples State Bank | Prairie Du Chien | $993.0M | $810.8M | 19 |
| 34 | The Farmers & Merchants Bank | Berlin | $949.4M | $784.7M | 2 |
| 35 | Farmers and Merchants Union Bank | Columbus | $872.1M | $751.9M | 13 |
| 36 | Bank of Sun Prairie | Sun Prairie | $841.2M | $719.5M | 8 |
| 37 | DMB Community Bank | Madison | $835.0M | $583.6M | 2 |
| 38 | The Bank of New Glarus | New Glarus | $823.2M | $647.4M | 8 |
| 39 | Royal Bank | Elroy | $816.1M | $723.1M | 21 |
| 40 | Hiawatha National Bank | Hager City | $781.3M | $602.1M | 8 |
| 41 | Westbury Bank | Waukesha | $771.9M | $698.0M | 9 |
| 42 | Fortifi Bank | Berlin | $750.4M | $608.8M | 10 |
| 43 | Bank of Prairie du Sac | Prairie Du Sac | $744.5M | $644.3M | 2 |
| 44 | Chippewa Valley Bank | Hayward | $735.8M | $559.0M | 13 |
| 45 | WOODTRUST BANK | Wisconsin Rapids | $734.8M | $600.7M | 7 |
| 46 | Dairy State Bank | Rice Lake | $730.3M | $630.4M | 12 |
| 47 | Northwestern Bank | Chippewa Falls | $725.6M | $575.2M | 7 |
| 48 | Bank of Luxemburg | Luxemburg | $723.4M | $627.2M | 9 |
| 49 | The Stephenson National Bank and Trust | Marinette | $676.8M | $588.0M | 7 |
| 50 | Community State Bank | Union Grove | $667.5M | $621.3M | 7 |
| 51 | AbbyBank | Abbotsford | $662.2M | $580.2M | 9 |
| 52 | Citizens State Bank of La Crosse | La Crosse | $648.5M | $513.4M | 4 |
| 53 | Community First Bank | Boscobel | $634.1M | $522.4M | 10 |
| 54 | PyraMax Bank, FSB | Greenfield | $588.7M | $406.2M | 6 |
| 55 | PremierBank | Fort Atkinson | $583.9M | $444.2M | 7 |
| 56 | Unity Bank | Augusta | $574.8M | $509.6M | 13 |
| 57 | Baraboo State Bank | Baraboo | $569.6M | $490.4M | 7 |
| 58 | Capitol Bank | Madison | $565.3M | $473.0M | 3 |
| 59 | First State Bank | New London | $558.1M | $449.8M | 8 |
| 60 | Northwestern Mutual Wealth Management | Milwaukee | $557.7M | $50.5M | 1 |
| 61 | Premier Community Bank | Marion | $552.1M | $486.6M | 10 |
| 62 | Mound City Bank | Platteville | $550.7M | $468.0M | 6 |
| 63 | Bank of Lake Mills | Lake Mills | $533.8M | $432.3M | 2 |
| 64 | First Citizens State Bank | Whitewater | $525.2M | $355.3M | 8 |
| 65 | Coulee Bank | La Crosse | $524.4M | $428.1M | 8 |
| 66 | Woodford State Bank | Monroe | $523.4M | $406.1M | 6 |
| 67 | State Bank of Chilton | Chilton | $516.5M | $435.9M | 5 |
| 68 | State Bank Financial | La Crosse | $512.1M | $439.0M | 5 |
| 69 | Citizens State Bank | Hudson | $488.2M | $410.5M | 5 |
| 70 | Oak Bank | Fitchburg | $486.3M | $419.6M | 1 |
| 71 | BLC Community Bank | Little Chute | $475.5M | $378.4M | 1 |
| 72 | Spring Bank | Brookfield | $440.7M | $332.3M | 1 |
| 73 | Oostburg State Bank | Oostburg | $440.2M | $388.4M | 4 |
| 74 | American National Bank - Fox Cities | Appleton | $432.6M | $353.5M | 1 |
| 75 | Bank of Mauston | Mauston | $426.7M | $367.7M | 6 |
| 76 | The Bank of Brodhead | Brodhead | $421.9M | $338.2M | 4 |
| 77 | FORTE BANK | Hartford | $404.5M | $336.3M | 4 |
| 78 | The Peoples Community Bank | Mazomanie | $388.8M | $339.7M | 6 |
| 79 | Fox Valley Savings Bank | Fond Du Lac | $387.3M | $301.3M | 3 |
| 80 | Wolf River Community Bank | Hortonville | $385.8M | $297.6M | 4 |
| 81 | West Pointe Bank | Oshkosh | $368.8M | $260.2M | 1 |
| 82 | The First National Bank of Bangor | Bangor | $363.7M | $225.6M | 5 |
| 83 | Shell Lake State Bank | Shell Lake | $361.8M | $314.2M | 5 |
| 84 | Sterling Bank | Barron | $352.4M | $314.5M | 4 |
| 85 | Waumandee State Bank | Waumandee | $345.5M | $301.2M | 8 |
| 86 | First National Community Bank | New Richmond | $345.3M | $311.8M | 5 |
| 87 | Citizens First Bank | Viroqua | $344.5M | $283.1M | 6 |
| 88 | Cumberland Federal Bank, FSB | Cumberland | $341.6M | $287.5M | 2 |
| 89 | Bank of Alma | Alma | $339.5M | $166.3M | 4 |
| 90 | Clare Bank, National Association | Platteville | $332.5M | $276.0M | 8 |
| 91 | Northern State Bank | Ashland | $330.8M | $297.1M | 7 |
| 92 | State Bank of Newburg | Newburg | $328.1M | $260.1M | 2 |
| 93 | The Equitable Bank, S.S.B. | Wauwatosa | $327.1M | $289.1M | 6 |
| 94 | The First National Bank of River Falls | River Falls | $325.3M | $286.6M | 3 |
| 95 | Bay Bank | Green Bay | $315.7M | $264.9M | 3 |
| 96 | Citizens State Bank of Loyal | Loyal | $311.5M | $250.3M | 5 |
| 97 | Collins State Bank | Collins | $301.2M | $260.6M | 6 |
| 98 | The Peshtigo National Bank | Peshtigo | $300.0M | $250.8M | 6 |
| 99 | Laona State Bank | Laona | $296.6M | $271.5M | 7 |
| 100 | Partners Bank of Wisconsin | Marshfield | $294.2M | $224.2M | 3 |
Showing the 100 largest of 153 banks. Search Vault for any institution by name.
NCUA-insured credit unions headquartered in Wisconsin, ranked by total assets, with member counts from 5300 call report filings.
| # | Credit union | City | Assets | Members |
|---|---|---|---|---|
| 1 | SUMMIT | Madison | $8.10B | 275,590 |
| 2 | LANDMARK | Brookfield | $7.48B | 405,291 |
| 3 | COMMUNITY FIRST | Appleton | $6.37B | 164,558 |
| 4 | UNIVERSITY OF WISCONSIN | Madison | $6.30B | 386,994 |
| 5 | ROYAL | EAU CLAIRE | $5.83B | 321,219 |
| 6 | COVANTAGE | Antigo | $4.10B | 183,625 |
| 7 | CONNEXUS | Wausau | $3.93B | 434,687 |
| 8 | EDUCATORS | Racine | $3.75B | 231,831 |
| 9 | FOX COMMUNITIES | Appleton | $3.27B | 140,301 |
| 10 | ALTRA | ONALASKA | $3.05B | 158,255 |
| 11 | CAPITAL | Green Bay | $2.78B | 127,388 |
| 12 | WESTCONSIN | Menomonie | $2.16B | 126,216 |
| 13 | VERVE, A CREDIT UNION | Oshkosh | $1.61B | 62,795 |
| 14 | MARINE | La Crosse | $1.09B | 74,909 |
| 15 | WESTBY CO-OP | WESTBY | $996.7M | 41,097 |
| 16 | BLACKHAWK COMMUNITY | Janesville | $911.0M | 44,303 |
| 17 | KOHLER | Sheboygan | $751.6M | 53,785 |
| 18 | SUPERIOR CHOICE | Superior | $717.6M | 37,618 |
| 19 | HEARTLAND | Madison | $635.9M | 33,515 |
| 20 | CO-OP | Black River Fal | $601.4M | 23,551 |
| 21 | SIMPLICITY | Marshfield | $531.8M | 28,658 |
| 22 | PCM | Green Bay | $501.0M | 15,441 |
| 23 | FIRST COMMUNITY CU OF BELOIT | Beloit | $413.4M | 32,222 |
| 24 | FORT COMMUNITY | FORT ATKINSON | $405.9M | 21,687 |
| 25 | UNISON | Kaukauna | $384.2M | 18,895 |
| 26 | PARK CITY | Merrill | $381.3M | 25,641 |
| 27 | PROSPERA | APPLETON | $374.5M | 21,439 |
| 28 | CLOVERBELT | Wausau | $342.0M | 16,282 |
| 29 | UNITEDONE | Manitowoc | $329.1M | 19,017 |
| 30 | VALLEY COMMUNITIES | Mosinee | $296.0M | 16,069 |
| 31 | GUARDIAN | Oak Creek | $285.8M | 25,427 |
| 32 | 1ST COMMUNITY | Sparta | $280.6M | 15,727 |
| 33 | GLACIER HILLS | WEST BEND | $275.0M | 16,977 |
| 34 | NORTHWESTERN MUTUAL | Milwaukee | $264.7M | 6,703 |
| 35 | RIPCO | Rhinelander | $184.4M | 12,674 |
| 36 | MEMBERS' ADVANTAGE | Wisconsin Rapid | $183.6M | 11,238 |
| 37 | WINNEBAGO COMMUNITY | Oshkosh | $167.6M | 8,536 |
| 38 | N.E.W. | Oconto Falls | $165.2M | 12,204 |
| 39 | SENTRY | Stevens Point | $162.0M | 7,099 |
| 40 | PRIME FINANCIAL | Cudahy | $159.5M | 16,147 |
| 41 | SHORELINE | Two Rivers | $150.8M | 7,964 |
| 42 | ARCADIA | Arcadia | $139.0M | 6,958 |
| 43 | FIREFIGHTERS | ONALASKA | $131.2M | 4,947 |
| 44 | PREMIER FINANCIAL | New Holstein | $128.4M | 8,405 |
| 45 | OAKDALE | Oakdale | $127.8M | 11,345 |
| 46 | TOMAH AREA | Tomah | $121.1M | 6,704 |
| 47 | GOVERNMENTAL EMPLOYEES | La Crosse | $116.9M | 6,656 |
| 48 | SOUTHERN LAKES | KENOSHA | $109.1M | 9,519 |
| 49 | INDIANHEAD | SPOONER | $97.7M | 7,262 |
| 50 | NORTHWOODS COMMUNITY | Park Falls | $92.7M | 8,024 |
Deposit market share is measured at the county level from the FDIC Summary of Deposits, an annual branch-level filing as of each June 30. County data shows which institutions actually hold balances in a given market and how concentrated that market is — a question state-level totals cannot answer, because a bank can be small statewide and dominant in its home county.
Vault republishes public FDIC and NCUA filings without modification. Bank figures come from quarterly call reports; credit union figures from NCUA 5300 filings; branch and deposit market share from the FDIC Summary of Deposits. Data is free to access and free to cite, with no login or paywall. The same data is available to AI agents through a public Model Context Protocol server at vaultbot.ai/mcp.