There are 324 FDIC-insured banks headquartered in Illinois, holding $771.38B in combined assets and $619.44B in deposits, alongside 192 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 | BMO Bank National Association | Chicago | $254.97B | $194.14B | 988 |
| 2 | The Northern Trust Company | Chicago | $178.57B | $148.11B | 65 |
| 3 | CIBC Bank USA | Chicago | $66.50B | $51.47B | 13 |
| 4 | Busey Bank | Champaign | $18.15B | $15.16B | 81 |
| 5 | Byline Bank | Chicago | $9.91B | $7.90B | 55 |
| 6 | Wintrust Bank, National Association | Chicago | $9.57B | $8.29B | 37 |
| 7 | Lake Forest Bank & Trust Company, National Association | Lake Forest | $9.25B | $7.28B | 10 |
| 8 | First Mid Bank & Trust, National Association | Mattoon | $9.14B | $7.63B | 87 |
| 9 | First American Bank | Elk Grove Village | $8.63B | $5.55B | 58 |
| 10 | Old Second National Bank | Aurora | $6.86B | $5.47B | 57 |
| 11 | Hinsdale Bank & Trust Company, National Association | Hinsdale | $6.80B | $5.57B | 17 |
| 12 | Heartland Bank and Trust Company | Bloomington | $6.72B | $5.78B | 87 |
| 13 | Midland States Bank | Effingham | $6.69B | $5.72B | 60 |
| 14 | Northbrook Bank and Trust Company, National Association | Northbrook | $6.37B | $5.36B | 7 |
| 15 | Morton Community Bank | Morton | $5.35B | $4.72B | 49 |
| 16 | Barrington Bank & Trust Company, National Association | Barrington | $5.17B | $4.14B | 9 |
| 17 | Wheaton Bank & Trust, National Association | Wheaton | $4.79B | $4.14B | 8 |
| 18 | State Bank of India | Chicago | $4.32B | $3.28B | 1 |
| 19 | United Community Bank | Chatham | $4.13B | $3.59B | 46 |
| 20 | Carrollton Bank | Carrollton | $3.88B | $3.56B | 13 |
| 21 | St. Charles Bank & Trust Company, National Association | Saint Charles | $3.69B | $3.14B | 10 |
| 22 | Parkway Bank and Trust Company | Harwood Heights | $3.66B | $2.76B | 27 |
| 23 | Village Bank and Trust, National Association | Arlington Heights | $3.63B | $2.96B | 8 |
| 24 | Old Plank Trail Community Bank, National Association | New Lenox | $3.53B | $3.12B | 16 |
| 25 | Banterra Bank | Marion | $3.36B | $3.01B | 43 |
| 26 | Libertyville Bank & Trust Company, National Association | Libertyville | $3.34B | $2.86B | 8 |
| 27 | Lakeside Bank | Chicago | $2.85B | $2.46B | 11 |
| 28 | State Bank of the Lakes, National Association | Antioch | $2.81B | $2.38B | 10 |
| 29 | Beverly Bank & Trust Company, National Association | Chicago | $2.69B | $2.27B | 8 |
| 30 | INB, National Association | Springfield | $2.68B | $2.42B | 14 |
| 31 | FCB Banks | Collinsville | $2.64B | $2.27B | 20 |
| 32 | Republic Bank of Chicago | Oak Brook | $2.61B | $2.26B | 20 |
| 33 | Schaumburg Bank & Trust Company, National Association | Schaumburg | $2.56B | $2.21B | 7 |
| 34 | Crystal Lake Bank and Trust Company, National Association | Crystal Lake | $2.26B | $1.87B | 6 |
| 35 | First Bank Chicago | Highland Park | $2.23B | $1.78B | 4 |
| 36 | Marquette Bank | Chicago | $2.09B | $1.75B | 22 |
| 37 | Peoples National Bank , N.A. | Mount Vernon | $2.08B | $1.84B | 25 |
| 38 | American Commercial Bank & Trust, National Association | Ottawa | $2.07B | $1.84B | 11 |
| 39 | Blackhawk Bank & Trust | Milan | $2.04B | $1.60B | 19 |
| 40 | Bank of Springfield | Springfield | $2.00B | $1.71B | 17 |
| 41 | Foresight Bank | Winnebago | $1.71B | $1.49B | 14 |
| 42 | Servbank, National Association | Oswego | $1.70B | $1.22B | 8 |
| 43 | First State Bank | Mendota | $1.56B | $1.30B | 20 |
| 44 | Providence Bank & Trust | South Holland | $1.56B | $1.35B | 16 |
| 45 | Dieterich Bank | Effingham | $1.55B | $1.33B | 17 |
| 46 | Central Bank Illinois | Geneseo | $1.46B | $1.12B | 12 |
| 47 | Amalgamated Bank of Chicago | Chicago | $1.33B | $1.14B | 2 |
| 48 | First Bankers Trust Company, National Association | Quincy | $1.22B | $1.04B | 9 |
| 49 | Bank of Pontiac | Pontiac | $1.18B | $1.00B | 14 |
| 50 | American Community Bank & Trust | Woodstock | $1.18B | $1.01B | 5 |
| 51 | The Federal Savings Bank | Chicago | $1.08B | $741.1M | 2 |
| 52 | Belmont Bank & Trust Company | Chicago | $1.05B | $925.1M | 5 |
| 53 | First Southern Bank | Marion | $1.04B | $904.3M | 19 |
| 54 | Cornerstone National Bank & Trust Company | Palatine | $1.01B | $897.0M | 5 |
| 55 | International Bank of Chicago | Chicago | $982.7M | $863.0M | 6 |
| 56 | First National Bank of Waterloo | Waterloo | $929.3M | $779.6M | 16 |
| 57 | Fortress Bank | Peoria | $897.2M | $686.5M | 10 |
| 58 | Farmers National Bank | Prophetstown | $895.7M | $637.2M | 4 |
| 59 | Liberty Bank for Savings | Chicago | $868.6M | $656.8M | 5 |
| 60 | Resource Bank, National Association | Dekalb | $868.6M | $799.8M | 15 |
| 61 | Millennium Bank | Des Plaines | $844.5M | $693.2M | 3 |
| 62 | Prairie State Bank and Trust | Springfield | $840.1M | $730.2M | 19 |
| 63 | CIBM Bank | Champaign | $819.7M | $669.0M | 9 |
| 64 | Sauk Valley Bank & Trust Company | Sterling | $790.8M | $670.1M | 11 |
| 65 | First Savings Bank of Hegewisch | Chicago | $787.0M | $666.6M | 14 |
| 66 | Home State Bank, National Association | Crystal Lake | $776.0M | $686.6M | 7 |
| 67 | Itasca Bank & Trust Co. | Itasca | $770.8M | $691.7M | 2 |
| 68 | The Peoples State Bank of Newton, Illinois | Newton | $736.7M | $577.9M | 9 |
| 69 | Midwest Bank | Monmouth | $736.4M | $578.1M | 8 |
| 70 | First Neighbor Bank, National Association | Toledo | $736.0M | $604.2M | 10 |
| 71 | Longview Bank | Ogden | $732.1M | $653.1M | 13 |
| 72 | The Bradford National Bank of Greenville | Greenville | $722.8M | $602.2M | 10 |
| 73 | Albank National Association | Chicago | $721.8M | $591.1M | 4 |
| 74 | Hickory Point Bank and Trust | Decatur | $717.5M | $626.8M | 8 |
| 75 | Prospect Bank | Paris | $715.6M | $603.4M | 11 |
| 76 | Time Bank | Park Ridge | $712.8M | $608.2M | 3 |
| 77 | BankOrion | Orion | $688.1M | $582.9M | 9 |
| 78 | MidAmerica National Bank | Canton | $685.0M | $613.0M | 6 |
| 79 | Constitution Bank, National Association | Hillsboro | $683.1M | $618.6M | 14 |
| 80 | Apple River State Bank | Apple River | $675.2M | $548.3M | 8 |
| 81 | Peoples Bank & Trust | Pana | $656.6M | $522.2M | 14 |
| 82 | First Eagle Bank | Chicago | $649.6M | $468.0M | 2 |
| 83 | Stillman BancCorp N.A. | Stillman Valley | $645.6M | $570.9M | 6 |
| 84 | Legence Bank | Eldorado | $642.9M | $573.6M | 11 |
| 85 | Bank & Trust Company | Litchfield | $641.3M | $540.5M | 11 |
| 86 | TrustBank | Olney | $640.2M | $557.6M | 8 |
| 87 | The First National Bank of Carmi | Carmi | $622.2M | $545.5M | 12 |
| 88 | The Fairfield National Bank | Fairfield | $620.9M | $410.2M | 3 |
| 89 | Peoples National Bank of Kewanee | Kewanee | $587.6M | $517.0M | 10 |
| 90 | Washington Savings Bank | Effingham | $585.3M | $504.4M | 4 |
| 91 | FNBC Bank & Trust | La Grange | $581.6M | $525.1M | 3 |
| 92 | Bank of Belleville | Belleville | $562.9M | $411.4M | 4 |
| 93 | Lisle Savings Bank | Lisle | $544.5M | $383.3M | 4 |
| 94 | First Nations Bank | Chicago | $536.6M | $440.6M | 3 |
| 95 | Pan American Bank & Trust | Melrose Park | $536.1M | $474.7M | 6 |
| 96 | Citizens Community Bank | Mascoutah | $531.0M | $446.1M | 4 |
| 97 | First Secure Community Bank | Sugar Grove | $528.8M | $427.8M | 5 |
| 98 | Germantown Trust & Savings Bank | Breese | $523.6M | $433.2M | 4 |
| 99 | First Robinson Savings Bank, National Association | Robinson | $512.1M | $408.6M | 5 |
| 100 | First State Bank and Trust | Monticello | $509.6M | $464.3M | 10 |
Showing the 100 largest of 324 banks. Search Vault for any institution by name.
NCUA-insured credit unions headquartered in Illinois, ranked by total assets, with member counts from 5300 call report filings.
| # | Credit union | City | Assets | Members |
|---|---|---|---|---|
| 1 | ALLIANT | CHICAGO | $20.27B | 923,396 |
| 2 | CITIZENS EQUITY FIRST | Peoria | $8.28B | 418,324 |
| 3 | BAXTER | Vernon Hills | $6.34B | 368,252 |
| 4 | STATE FARM | Bloomington | $5.30B | 113,161 |
| 5 | CONSUMERS | lake Forest | $4.50B | 279,428 |
| 6 | CREDIT UNION 1 | Lombard | $2.34B | 150,837 |
| 7 | I. H. MISSISSIPPI VALLEY | Moline | $2.31B | 149,859 |
| 8 | EMPEOPLE | Moline | $2.28B | 76,715 |
| 9 | SCOTT | Edwardsville | $1.81B | 132,358 |
| 10 | GREAT LAKES | BANNOCKBURN | $1.41B | 103,253 |
| 11 | VIBRANT | Moline | $1.17B | 52,065 |
| 12 | SELFRELIANCE | Chicago | $1.13B | 49,024 |
| 13 | ABBOTT LABORATORIES | Gurnee | $1.12B | 32,890 |
| 14 | 1ST MIDAMERICA | Bethalto | $1.01B | 63,868 |
| 15 | NUMARK | Joliet | $884.9M | 61,600 |
| 16 | CORPORATE AMERICA FAMILY | Elgin | $829.8M | 61,893 |
| 17 | UNIVERSITY OF ILLINOIS COMMUNITY | Champaign | $755.5M | 64,203 |
| 18 | R.I.A. | Rock Island | $659.3M | 40,037 |
| 19 | NATIONAL POLICE | CHICAGO | $589.5M | 42,032 |
| 20 | DUPAGE | Naperville | $581.1M | 47,662 |
| 21 | FINANCIAL PLUS | OTTAWA | $580.2M | 45,254 |
| 22 | SIU | Carbondale | $561.0M | 45,875 |
| 23 | HEARTLAND | Springfield | $554.8M | 35,257 |
| 24 | LAND OF LINCOLN | DECATUR | $503.2M | 35,316 |
| 25 | REVITY | Granite City | $481.1M | 36,457 |
| 26 | HEALTHCARE ASSOCIATES | Lisle | $479.4M | 29,908 |
| 27 | EARTHMOVER | Aurora | $456.5M | 31,213 |
| 28 | STREATOR ONIZED | Streator | $409.5M | 37,546 |
| 29 | IAA | Bloomington | $403.0M | 18,055 |
| 30 | PARTNERSHIP FINANCIAL | MORTON GROVE | $384.0M | 14,356 |
| 31 | ABRI | Romeoville | $375.7M | 27,630 |
| 32 | COMMUNITY TRUST | Gurnee | $331.3M | 13,431 |
| 33 | FIRST NORTHERN | Chicago | $327.1M | 21,265 |
| 34 | DECATUR EARTHMOVER | Forsyth | $301.6M | 20,696 |
| 35 | MEMBERSALLIANCE | Rockford | $290.1M | 21,868 |
| 36 | ILLIANA FINANCIAL | Calumet City | $253.5M | 21,095 |
| 37 | ILLINOIS STATE | Normal | $242.1M | 18,102 |
| 38 | STALEY | DECATUR | $222.1M | 17,227 |
| 39 | CATHOLIC & COMMUNITY | Shiloh | $218.2M | 13,303 |
| 40 | MIDWEST MEMBERS | Wood River | $214.1M | 17,590 |
| 41 | COOPERATIVE CHOICE NETWORK | PEORIA | $201.7M | 12,358 |
| 42 | VICINITY | Chicago | $200.1M | 18,678 |
| 43 | ROCK VALLEY | Loves Park | $172.3M | 15,693 |
| 44 | CORNERSTONE | Freeport | $168.8M | 12,235 |
| 45 | GAS AND ELECTRIC | ROCK ISLAND | $128.0M | 5,526 |
| 46 | UNITED COMMUNITY | Quincy | $127.5M | 10,430 |
| 47 | CENTRAL CREDIT UNION OF ILLINOIS | Bellwood | $122.5M | 10,587 |
| 48 | ILLINOIS STATE POLICE | Springfield | $122.2M | 6,119 |
| 49 | ILLINOIS EDUCATORS | Springfield | $120.3M | 10,173 |
| 50 | LANDMARK | Danville | $118.6M | 9,698 |
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.