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Banks in Pennington County, South Dakota

FDIC-insured institutions in Pennington County held $3.3 billion in deposits as of June 30, 2026, according to the FDIC.

10 FDIC-insured institutions held $3.3 billion in deposits in 23 offices in Pennington County at June 30, 2026; First Interstate Bank held the most, 18.8% of the county's.

Pennington County, June 30, 2026

$3.3 billion
Deposits in the county
$3,271,507,000
At June 30, 2026, against $3.2 billion a year before, each year's own dollars.
10
Institutions with deposits
FDIC-insured banks and savings institutions with an office here that reported deposits.
23
Offices
Every office the survey lists here, against 23 in 2025.
18.8%
The largest share
First Interstate Bank, with $616.4 million in 7 offices.

Each institution’s share of the county’s deposits

3 more columns on a wider screen

FDIC-insured institutions with an office in Pennington County, South Dakota, by deposits there at June 30, 2026, each with its share of the county's $3.3 billion
InstitutionDepositsShare
First Interstate Bank$616.4 million18.8%
Wells Fargo Bank, National Association$565.6 million17.3%
U.S. Bank National Association$563.2 million17.2%
Security First Bank$373.8 million11.4%
Black Hills Community Bank, N.A.$364.7 million11.1%
Pioneer Bank & Trust$350.6 million10.7%
Dacotah Bank$196.7 million6.0%
BankWest, Inc.$101.2 million3.1%
First National Bank$98.7 million3.0%
First Western Federal Savings Bank$40.6 million1.2%

An institution with no office in the county in 2025 shows none for that year; a name is the survey’s for 2026, and one without a link has no page because it did not file a Call Report for the newest quarter.

Sources

Compiled automatically from FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved