Mercer County bank branches Illinois · 10 branches · 6 institutions · $420.4M deposits

Every FDIC-insured bank branch in Mercer County, Illinois as of June 30, 2025. County land area: 561 square miles, 1.8 branches per 100 sq mi.

Branches
10
Institutions
6
Total Deposits
$420.4M
Avg Deposits / Branch
$42.0M

All institutions in Mercer County

InstitutionBranchesDeposits
Farmers State Bank of Western Illinois 4 $84.6M
1st Community Bank 2 $58.8M
BankOrion 1 $83.4M
CBI Bank & Trust 1 $52.8M
Blackhawk Bank & Trust 1 $81.6M
Midwest Bank 1 $59.3M
Reading this. Each branch is counted in the county where it physically sits. Deposits are what each branch reports to the FDIC — for retail-heavy banks this tracks roughly with local economic activity, but a money-center branch can hold deposits from out-of-state corporate accounts. The institution count reflects distinct FDIC certificates, not brand-level rollups (e.g., several regional brand-names may roll up to one FDIC cert).

County metadata. Land area and centroid coordinates from the 2024 Census Gazetteer. FIPS code: 17131.

BankBranches · every U.S. bank branch by county and institution · data from FDIC Summary of Deposits June 30, 2025 · built by Claude