Banks in O'Brien County, Iowa
FDIC-insured institutions in O'Brien County held $1.0 billion in deposits as of June 30, 2026, according to the FDIC.
9 FDIC-insured institutions held $1.0 billion in deposits in 13 offices in O'Brien County at June 30, 2026; Security State Bank held the most, 25.9% of the county's.
O'Brien County, June 30, 2026
- $1.0 billion
- Deposits in the county
- $1,021,022,000
- At June 30, 2026, against $994.2 million a year before, each year's own dollars.
- 9
- Institutions with deposits
- FDIC-insured banks and savings institutions with an office here that reported deposits.
- 13
- Offices
- Every office the survey lists here, against 13 in 2025.
- 25.9%
- The largest share
- Security State Bank, with $264.2 million in 2 offices.
Each institution’s share of the county’s deposits
3 more columns on a wider screen
| Institution | Deposits | Share |
|---|---|---|
| Security State Bank | $264.2 million | 25.9% |
| Savings Bank | $163.2 million | 16.0% |
| Citizens State Bank | $141.5 million | 13.9% |
| Iowa State Bank | $138.0 million | 13.5% |
| Peoples Bank | $124.8 million | 12.2% |
| Sanborn Savings Bank | $66.6 million | 6.5% |
| The Security National Bank of Sioux City, Iowa | $60.7 million | 5.9% |
| United Community Bank | $32.0 million | 3.1% |
| The First National Bank of Primghar | $29.9 million | 2.9% |
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
- FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey — Federal Deposit Insurance Corporation · Public domain — U.S. Government work · retrieved September 27, 2026
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