Union County bank branches South Dakota · 12 branches · 9 institutions · $809.1M deposits

Every FDIC-insured bank branch in Union County, South Dakota as of June 30, 2025. County land area: 461 square miles, 2.6 branches per 100 sq mi.

Branches
12
Institutions
9
Total Deposits
$809.1M
Avg Deposits / Branch
$67.4M

All institutions in Union County

InstitutionBranchesDeposits
Liberty National Bank 3 $239.4M
First Dakota National Bank 2 $94.8M
Central Bank 1 $61.4M
Peoples Bank 1 $12.7M
1st Financial Bank USA 1 $9.1M
Pioneer Bank 1 $64.5M
First Savings Bank 1 $94.7M
Premier Bank 1 $148.0M
Security National Bank of South Dakota 1 $84.5M
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: 46127.

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