Banks by county in Illinois
99 counties in Illinois have offices of 2 or more FDIC-insured institutions with deposits, by the FDIC’s newest Summary of Deposits, largest deposits first. A county with one bank is on that bank’s page.
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| County | Deposits | Institutions |
|---|---|---|
| Cook County | $466.1 billion | 87 |
| DuPage County | $55.0 billion | 44 |
| Lake County | $31.0 billion | 29 |
| Will County | $23.4 billion | 34 |
| Kane County | $15.5 billion | 30 |
| McHenry County | $9.8 billion | 24 |
| Sangamon County | $9.4 billion | 24 |
| Winnebago County | $8.2 billion | 18 |
| Champaign County | $7.6 billion | 29 |
| Madison County | $6.7 billion | 23 |
| St. Clair County | $5.9 billion | 26 |
| McLean County | $4.6 billion | 26 |
| Peoria County | $4.5 billion | 18 |
| LaSalle County | $4.1 billion | 22 |
| Tazewell County | $3.9 billion | 18 |
| DeKalb County | $3.0 billion | 9 |
| Rock Island County | $2.9 billion | 16 |
| Kankakee County | $2.8 billion | 13 |
| Kendall County | $2.8 billion | 13 |
| Effingham County | $2.6 billion | 11 |
| Coles County | $2.5 billion | 12 |
| Macon County | $2.3 billion | 13 |
| Adams County | $2.3 billion | 13 |
| Knox County | $2.2 billion | 12 |
| Whiteside County | $2.0 billion | 13 |
| Williamson County | $1.9 billion | 14 |
| Henry County | $1.9 billion | 11 |
| Grundy County | $1.7 billion | 12 |
| Clinton County | $1.6 billion | 13 |
| Stephenson County | $1.6 billion | 9 |
| Vermilion County | $1.5 billion | 14 |
| Livingston County | $1.4 billion | 12 |
| Ogle County | $1.4 billion | 11 |
| Bureau County | $1.3 billion | 11 |
| Macoupin County | $1.2 billion | 13 |
| Monroe County | $1.2 billion | 10 |
| Jackson County | $1.2 billion | 10 |
| Montgomery County | $1.2 billion | 9 |
| Iroquois County | $1.1 billion | 12 |
| Randolph County | $1.1 billion | 8 |
| Jefferson County | $1.1 billion | 9 |
| Marion County | $1.1 billion | 12 |
| Fulton County | $1.0 billion | 14 |
| Morgan County | $1.0 billion | 11 |
| Christian County | $979.0 million | 11 |
| Woodford County | $972.0 million | 5 |
| Saline County | $920.2 million | 7 |
| McDonough County | $894.9 million | 9 |
| Jo Daviess County | $890.6 million | 5 |
| Lee County | $842.9 million | 9 |
| Boone County | $835.0 million | 8 |
| Franklin County | $826.1 million | 8 |
| Hancock County | $760.1 million | 7 |
| Douglas County | $734.0 million | 8 |
| Shelby County | $672.5 million | 7 |
| Crawford County | $663.3 million | 6 |
| Pike County | $661.6 million | 8 |
| Edgar County | $660.3 million | 5 |
| Jersey County | $649.5 million | 6 |
| Logan County | $648.8 million | 9 |
| Richland County | $643.8 million | 4 |
| Piatt County | $642.5 million | 4 |
| Warren County | $638.9 million | 6 |
| Carroll County | $617.8 million | 8 |
| Fayette County | $611.2 million | 9 |
| Wayne County | $584.0 million | 5 |
| Washington County | $582.9 million | 8 |
| Clark County | $555.9 million | 6 |
| De Witt County | $553.1 million | 4 |
| Ford County | $533.8 million | 5 |
| Hamilton County | $530.6 million | 2 |
| Perry County | $523.0 million | 5 |
| White County | $501.9 million | 6 |
| Cass County | $490.5 million | 5 |
| Jasper County | $462.9 million | 4 |
| Wabash County | $461.5 million | 3 |
| Mason County | $456.4 million | 7 |
| Bond County | $447.0 million | 5 |
| Clay County | $439.9 million | 5 |
| Massac County | $438.6 million | 3 |
| Greene County | $428.7 million | 5 |
| Mercer County | $413.8 million | 6 |
| Union County | $401.9 million | 5 |
| Marshall County | $369.9 million | 7 |
| Moultrie County | $369.5 million | 4 |
| Menard County | $360.2 million | 3 |
| Cumberland County | $358.7 million | 2 |
| Stark County | $321.0 million | 4 |
| Lawrence County | $320.7 million | 6 |
| Johnson County | $300.0 million | 3 |
| Henderson County | $246.8 million | 4 |
| Brown County | $227.1 million | 4 |
| Schuyler County | $220.3 million | 4 |
| Putnam County | $195.0 million | 3 |
| Gallatin County | $186.7 million | 3 |
| Edwards County | $186.6 million | 2 |
| Scott County | $167.9 million | 4 |
| Calhoun County | $163.3 million | 2 |
| Pulaski County | $81.9 million | 2 |
Sources
- NCUA 5300 Call Report — quarterly data (every credit union, every quarter from March 1994) — National Credit Union Administration · U.S. Government work · retrieved September 27, 2026
- FDIC failures — every bank failure and assistance transaction since 1934 — Federal Deposit Insurance Corporation · Public domain — U.S. Government work
- FDIC summary — insured institutions, offices, assets and deposits by state and year since 1934 · Public domain — U.S. Government work
- FDIC BankFind — institutions (every charter the FDIC has insured, active and inactive) · Public domain — U.S. Government work · retrieved September 30, 2026
- NCUA credit-union sites — Credit Union Branch Information (the newest quarter) — National Credit Union Administration · U.S. Government work · retrieved September 27, 2026
- FDIC BankFind — locations (every current office of an FDIC-insured institution) — Federal Deposit Insurance Corporation · Public domain — U.S. Government work · retrieved September 30, 2026
- FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey · Public domain — U.S. Government work · retrieved September 27, 2026
- Census Bureau population estimates — nation and states, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
Compiled automatically from NCUA 5300 Call Report — quarterly data (every credit union, every quarter from March 1994), FDIC failures — every bank failure and assistance transaction since 1934, FDIC summary — insured institutions, offices, assets and deposits by state and year since 1934, FDIC BankFind — institutions (every charter the FDIC has insured, active and inactive), NCUA credit-union sites — Credit Union Branch Information (the newest quarter), FDIC BankFind — locations (every current office of an FDIC-insured institution), FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey and Census Bureau population estimates — nation and states, with components of change by a checked SQL query · Editor: Kian O'Connor · How this site is built
Data retrieved