There are 225 FDIC-insured banks headquartered in Iowa, holding $127.76B in combined assets and $106.60B in deposits, alongside 66 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 | Principal Bank | Des Moines | $9.84B | $9.26B | 1 |
| 2 | Bankers Trust Company | Des Moines | $7.83B | $6.72B | 22 |
| 3 | Hills Bank and Trust Company | Hills | $4.79B | $3.53B | 21 |
| 4 | West Bank | West Des Moines | $4.03B | $3.35B | 12 |
| 5 | Northwest Bank | Spencer | $3.00B | $2.62B | 22 |
| 6 | Cedar Rapids Bank and Trust Company | Cedar Rapids | $2.90B | $2.08B | 9 |
| 7 | Quad City Bank and Trust Company | Bettendorf | $2.77B | $2.39B | 5 |
| 8 | Fidelity Bank & Trust | Dubuque | $2.60B | $2.13B | 36 |
| 9 | United Bank of Iowa | Ida Grove | $2.50B | $1.96B | 38 |
| 10 | Bank Iowa | West Des Moines | $2.35B | $1.97B | 25 |
| 11 | Luana Savings Bank | Luana | $2.34B | $1.97B | 6 |
| 12 | Central Bank | Storm Lake | $2.29B | $1.87B | 23 |
| 13 | First Citizens Bank | Mason City | $1.80B | $1.58B | 7 |
| 14 | Community State Bank | Ankeny | $1.75B | $1.26B | 10 |
| 15 | Availa Bank | Carroll | $1.73B | $1.42B | 15 |
| 16 | Lincoln Savings Bank | Reinbeck | $1.71B | $1.47B | 16 |
| 17 | CBI Bank & Trust | Muscatine | $1.70B | $1.44B | 24 |
| 18 | The Security National Bank of Sioux City, Iowa | Sioux City | $1.69B | $1.31B | 10 |
| 19 | Farmers State Bank | Waterloo | $1.60B | $1.26B | 8 |
| 20 | American State Bank | Sioux Center | $1.45B | $1.22B | 11 |
| 21 | Bank Midwest | Spirit Lake | $1.35B | $1.15B | 11 |
| 22 | Capra Bank | Dubuque | $1.34B | $1.11B | 5 |
| 23 | Iowa State Bank | Hull | $1.26B | $873.0M | 14 |
| 24 | Peoples Bank | Rock Valley | $1.25B | $1.05B | 10 |
| 25 | Pilot Grove Savings Bank | Pilot Grove | $1.22B | $1.08B | 17 |
| 26 | Farmers State Bank | Marion | $1.12B | $919.5M | 9 |
| 27 | First National Bank, Ames, Iowa | Ames | $1.11B | $955.6M | 10 |
| 28 | VISIONBANK OF IOWA | Ames | $896.1M | $758.9M | 13 |
| 29 | BankIowa | Cedar Rapids | $846.2M | $712.7M | 13 |
| 30 | Premier Bank | Rock Valley | $826.5M | $671.7M | 6 |
| 31 | CUSB Bank | Cresco | $812.1M | $699.3M | 7 |
| 32 | Primebank | Le Mars | $800.6M | $692.5M | 4 |
| 33 | Decorah Bank & Trust Company | Decorah | $794.1M | $694.7M | 3 |
| 34 | City State Bank | Norwalk | $787.9M | $693.2M | 9 |
| 35 | First Central State Bank | Dewitt | $772.4M | $595.4M | 6 |
| 36 | Midwest Heritage Bank, FSB | West Des Moines | $768.3M | $649.6M | 13 |
| 37 | Green Belt Bank & Trust | Iowa Falls | $758.7M | $676.6M | 9 |
| 38 | First Bank | Waverly | $739.9M | $619.8M | 8 |
| 39 | Manufacturers Bank & Trust Company | Forest City | $738.2M | $640.4M | 9 |
| 40 | First State Bank | Webster City | $674.3M | $572.2M | 8 |
| 41 | Midstates Bank, National Association | Council Bluffs | $653.9M | $570.2M | 10 |
| 42 | Clear Lake Bank and Trust Company | Clear Lake | $649.3M | $585.0M | 5 |
| 43 | Marion County State Bank | Pella | $628.6M | $546.6M | 5 |
| 44 | Liberty National Bank | Sioux City | $624.4M | $457.3M | 10 |
| 45 | South Story Bank & Trust | Slater | $623.9M | $491.3M | 6 |
| 46 | GNB Bank | Grundy Center | $621.3M | $498.0M | 10 |
| 47 | Farmers Trust and Savings Bank | Spencer | $618.0M | $557.3M | 1 |
| 48 | Farmers & Merchants Savings Bank | Manchester | $616.8M | $516.0M | 7 |
| 49 | Community Savings Bank | Edgewood | $613.6M | $501.4M | 12 |
| 50 | Peoples Savings Bank | Indianola | $610.4M | $533.7M | 8 |
| 51 | Washington State Bank | Washington | $601.1M | $510.5M | 5 |
| 52 | Citizens State Bank | Monticello | $594.4M | $537.8M | 8 |
| 53 | South Ottumwa Savings Bank | Ottumwa | $565.4M | $473.9M | 6 |
| 54 | Central State Bank | State Center | $557.8M | $465.9M | 3 |
| 55 | Connection Bank | Fort Madison | $540.9M | $452.4M | 5 |
| 56 | First Security Bank and Trust Company | Charles City | $538.2M | $469.0M | 8 |
| 57 | American Bank, National Association | Le Mars | $533.0M | $445.0M | 2 |
| 58 | Peoples Bank | Clive | $529.6M | $464.3M | 8 |
| 59 | The Shelby County State Bank | Harlan | $523.6M | $462.9M | 11 |
| 60 | Iowa Trust & Savings Bank | Emmetsburg | $522.0M | $396.4M | 4 |
| 61 | Ohnward Bank & Trust | Cascade | $499.1M | $417.6M | 6 |
| 62 | Grinnell State Bank | Grinnell | $498.6M | $346.6M | 4 |
| 63 | TruBank | Indianola | $494.6M | $366.1M | 8 |
| 64 | Security State Bank | Sutherland | $492.3M | $337.3M | 5 |
| 65 | Raccoon Valley Bank | Perry | $486.0M | $430.2M | 4 |
| 66 | Rolling Hills Bank & Trust | Atlantic | $484.4M | $416.2M | 12 |
| 67 | American Bank and Trust Company, National Association | Davenport | $480.9M | $387.8M | 8 |
| 68 | Home State Bank | Jefferson | $480.7M | $436.9M | 2 |
| 69 | Iowa State Bank | Des Moines | $480.5M | $392.0M | 5 |
| 70 | Iowa State Bank | Algona | $470.7M | $378.9M | 5 |
| 71 | Northeast Security Bank | Sumner | $461.9M | $379.1M | 7 |
| 72 | NSB Bank | Mason City | $460.8M | $400.6M | 6 |
| 73 | GreatAmerica Bank National Association | Cedar Rapids | $450.0M | $56.1M | 4 |
| 74 | FreedomBank | Elkader | $433.9M | $367.9M | 4 |
| 75 | TS Bank | Treynor | $432.7M | $387.4M | 7 |
| 76 | Maquoketa State Bank | Maquoketa | $429.0M | $327.4M | 4 |
| 77 | Waukon State Bank | Waukon | $426.9M | $366.5M | 4 |
| 78 | Farmers Trust and Savings Bank | Buffalo Center | $422.7M | $373.8M | 6 |
| 79 | Central State Bank | Coralville | $419.3M | $344.4M | 7 |
| 80 | Hardin County Savings Bank | Eldora | $402.3M | $324.4M | 2 |
| 81 | The Clinton National Bank | Clinton | $396.4M | $340.7M | 9 |
| 82 | First Iowa State Bank | Albia | $396.1M | $359.0M | 6 |
| 83 | Iowa State Bank | Clarksville | $392.9M | $339.9M | 3 |
| 84 | First State Bank | Lynnville | $384.2M | $308.1M | 7 |
| 85 | The Libertyville Savings Bank | Fairfield | $384.1M | $299.1M | 6 |
| 86 | Earlham Savings Bank | West Des Moines | $382.5M | $343.9M | 9 |
| 87 | Citizens First Bank | Clinton | $361.3M | $278.7M | 3 |
| 88 | American State Bank | Osceola | $360.8M | $282.8M | 4 |
| 89 | Premier Bank | Dubuque | $357.7M | $304.8M | 3 |
| 90 | Glenwood State Bank | Glenwood | $352.9M | $307.7M | 4 |
| 91 | Iowa State Bank and Trust Company of Fairfield, Iowa | Fairfield | $352.1M | $300.9M | 3 |
| 92 | New Albin Savings Bank | New Albin | $350.6M | $296.6M | 1 |
| 93 | Commercial Savings Bank | Carroll | $348.8M | $292.7M | 2 |
| 94 | Kerndt Brothers Savings Bank | Lansing | $347.2M | $282.8M | 6 |
| 95 | Community State Bank | Spencer | $345.8M | $295.5M | 7 |
| 96 | PCSB Bank | Clarinda | $326.1M | $294.0M | 7 |
| 97 | Pinnacle Bank | Marshalltown | $324.4M | $268.2M | 1 |
| 98 | First Trust and Savings Bank | Wheatland | $320.6M | $271.6M | 8 |
| 99 | Savings Bank | Primghar | $304.8M | $242.1M | 3 |
| 100 | Community Bank and Trust Company | Muscatine | $303.5M | $280.3M | 5 |
Showing the 100 largest of 225 banks. Search Vault for any institution by name.
NCUA-insured credit unions headquartered in Iowa, ranked by total assets, with member counts from 5300 call report filings.
| # | Credit union | City | Assets | Members |
|---|---|---|---|---|
| 1 | GREENSTATE | North Liberty | $11.16B | 402,073 |
| 2 | VERIDIAN | Waterloo | $8.61B | 367,737 |
| 3 | DUPACO COMMUNITY | Dubuque | $3.59B | 179,112 |
| 4 | COLLINS COMMUNITY | Cedar Rapids | $1.52B | 81,905 |
| 5 | DUTRAC COMMUNITY | DUBUQUE | $1.21B | 53,305 |
| 6 | COMMUNITY 1ST | Ottumwa | $1.07B | 72,306 |
| 7 | COMMUNITY CHOICE | JOHNSTON | $902.7M | 53,548 |
| 8 | CORDA | Cedar Rapids | $726.3M | 26,718 |
| 9 | GREATER IOWA | Ames | $691.5M | 37,739 |
| 10 | ASCENTRA | Bettendorf | $575.2M | 43,245 |
| 11 | PREMIER | Des Moines | $374.4M | 16,367 |
| 12 | MEMBERS1ST COMMUNITY | Marshalltown | $297.0M | 17,629 |
| 13 | CITIZENS COMMUNITY | Fort Dodge | $248.5M | 13,972 |
| 14 | THE FAMILY | Davenport | $242.2M | 19,955 |
| 15 | CEDAR FALLS COMMUNITY | Cedar Falls | $233.9M | 8,817 |
| 16 | FINANCIAL PLUS | West Des Moines | $233.3M | 11,712 |
| 17 | EMPLOYEES | Estherville | $195.2M | 9,122 |
| 18 | AIM | Dubuque | $188.0M | 14,208 |
| 19 | FIRST | Hiawatha | $179.7M | 10,124 |
| 20 | 1ST GATEWAY | Camanche | $168.7M | 10,362 |
| 21 | CENT | Mason City | $162.0M | 11,425 |
| 22 | NORTH STAR COMMUNITY | Cherokee | $159.0M | 12,287 |
| 23 | TELCO TRIAD COMMUNITY | Sioux City | $158.4M | 16,010 |
| 24 | AFFINITY | Des Moines | $149.1M | 12,674 |
| 25 | NORTH IOWA COMMUNITY | MASON CITY | $124.3M | 11,376 |
| 26 | RIVER VALLEY | AMES | $113.8M | 6,759 |
| 27 | ADVANTAGE | Newton | $103.7M | 7,165 |
| 28 | SERVE | DES MOINES | $98.5M | 4,981 |
| 29 | MIDLAND | URBANDALE | $97.4M | 6,588 |
| 30 | MEMBERS COMMUNITY | Muscatine | $95.2M | 8,055 |
| 31 | FIRST CLASS COMMUNITY | WEST DES MOINES | $93.3M | 6,939 |
| 32 | JOURNEY | Des Moines | $92.8M | 5,151 |
| 33 | PEOPLES | Webster City | $90.4M | 5,700 |
| 34 | POWER CO-OP EMPLOYEES | Humboldt | $80.9M | 2,841 |
| 35 | DES MOINES METRO | Des Moines | $73.4M | 7,010 |
| 36 | LENNOX EMPLOYEES | Marshalltown | $70.9M | 6,581 |
| 37 | METCO | Cedar Rapids | $56.7M | 3,267 |
| 38 | 5 STAR COMMUNITY | MOUNT PLEASANT | $53.1M | 6,663 |
| 39 | CAPITOL VIEW | Des Moines | $46.0M | 1,759 |
| 40 | SIOUX VALLEY COMMUNITY | SIOUX CITY | $41.7M | 3,709 |
| 41 | FORT DODGE FAMILY | Fort Dodge | $41.4M | 3,489 |
| 42 | MERIDIAN | Ottumwa | $33.7M | 2,102 |
| 43 | HOLY GHOST PARISH | DUBUQUE | $32.8M | 873 |
| 44 | IOWA HEARTLAND | MASON CITY | $30.8M | 3,396 |
| 45 | RIVER COMMUNITY | Ottumwa | $29.1M | 3,651 |
| 46 | CASEBINE COMMUNITY | Burlington | $28.4M | 3,214 |
| 47 | AEGIS | Clinton | $26.2M | 3,685 |
| 48 | FAMILY COMMUNITY | Charles City | $25.6M | 2,036 |
| 49 | UNITE | Cedar Falls | $22.7M | 1,575 |
| 50 | QUAKER OATS | CEDAR RAPIDS | $12.9M | 1,305 |
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.