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HEADQUARTERED IN ILLINOIS

Illinois banks and credit unions

516 institutions headquartered in Illinois. Totals describe institutions by headquarters, not deposits held at branches in the state.

BANKS ·

Illinois banks

  • 328 banks headquartered in Illinois reported $779 billion in combined total assets for the quarter ended June 30, 2026.
  • Their combined deposits were $626 billion, up 3.4% from a year earlier among institutions that reported both quarters.
  • The median net interest margin was 3.75%, and the median cost of all deposits was 1.61%.
Institutions
328
Combined total assets
$779 billion
Combined deposits
$626 billion
Deposit growth, 12 months
+3.4%
Loan growth, 12 months
+4.2%
Median net interest margin
3.75%
Median return on assets
1.20%
Median cost of deposits
1.61%

What stands out

Largest banks

InstitutionCityTotal assetsDeposit growthROA
BMO Bank N.A.Chicago$255 billion-2.6%-0.87%
The Northern Trust CompanyChicago$179 billion+6.3%1.80%
Cibc Bank USAChicago$66.5 billion+8.1%1.80%
Busey BankChampaign$18.1 billion-4.9%1.46%
Byline BankChicago$9.9 billion+0.8%1.73%
Wintrust Bank N.A.Chicago$9.6 billion-0.2%2.00%
Lake Forest Bank & Trust Company N.A.Lake Forest$9.3 billion-2.7%2.26%
First Mid Bank & Trust N.A.Mattoon$9.1 billion+22.2%1.15%
First American BankElk Grove Villag$8.6 billion+10.6%1.54%
Old Second National BankAurora$6.9 billion+12.3%1.77%
Hinsdale Bank & Trust Company N.A.Hinsdale$6.8 billion+20.0%1.52%
Heartland Bank and Trust CompanyBloomington$6.7 billion+33.1%1.69%
Midland States BankEffingham$6.7 billion-3.9%1.27%
Northbrook Bank & Trust Company N.A.Northbrook$6.4 billion+11.6%1.46%
Morton Community BankMorton$5.3 billion+2.2%1.56%

Rankings

All 328 banks headquartered in Illinois
CREDIT UNIONS ·

Illinois credit unions

  • 188 credit unions headquartered in Illinois reported $77.6 billion in combined total assets for the quarter ended June 30, 2026.
  • Their combined shares and deposits were $65.1 billion, up 6.1% from a year earlier among institutions that reported both quarters.
  • The median net interest margin was 3.74%, and the median cost of all shares and deposits was 0.99%.
Institutions
188
Combined total assets
$77.6 billion
Combined shares and deposits
$65.1 billion
Share and deposit growth, 12 months
+6.1%
Loan growth, 12 months
+4.5%
Median net interest margin
3.74%
Median return on assets
0.90%
Median cost of shares and deposits
0.99%

What stands out

Largest credit unions

InstitutionCityTotal assetsShare growthROA
Alliant Credit UnionChicago$20.0 billion+1.2%1.33%
Citizens Equity First Credit UnionPeoria$8.5 billion+5.2%1.39%
Baxter Credit UnionVernon Hills$6.4 billion+4.2%0.79%
State Farm Federal Credit UnionBloomington$5.7 billion+18.9%0.52%
Consumers Credit UnionLake Forest$4.6 billion+7.1%1.28%
Credit Union 1Lombard$2.9 billion+45.4%0.88%
I. H. Mississippi Valley Credit UnionMoline$2.3 billion+3.0%1.19%
Empeople Credit UnionMoline$2.3 billion+5.7%0.67%
Scott Credit UnionEdwardsville$1.9 billion+1.7%1.16%
Great Lakes Credit UnionBannockburn$1.4 billion-2.1%0.49%
Vibrant Credit UnionMoline$1.2 billion+5.9%0.45%
Selfreliance Federal Credit UnionChicago$1.2 billion+10.4%0.74%
Abbott Laboratories Credit UnionGurnee$1.1 billion+2.3%1.04%
1st Midamerica Credit UnionBethalto$1.0 billion+2.6%1.96%
Alero Financial Credit UnionElgin$954 million+20.1%0.23%

Rankings

All 188 credit unions headquartered in Illinois

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