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Bank Deposits in Sioux County, Iowa
Where bank deposits are booked in Sioux County - FDIC Summary of Deposits, June 30, 2026.
Total bank deposits
$2.93B
Bank offices
21
Banks present
9
Top 4 banks' share
85.8%
Deposit market share in Sioux County
| # | Bank | Branch deposits here | Share |
|---|---|---|---|
| 1 | American State Bank | $1.11B | 37.9% |
| 2 | Peoples Bank | $632.25M | 21.6% |
| 3 | Iowa State Bank | $456.65M | 15.6% |
| 4 | Premier Bank | $316.07M | 10.8% |
| 5 | The Security National Bank Of Sioux City, Iowa | $155.53M | 5.3% |
| 6 | Northwest Bank | $97.59M | 3.3% |
| 7 | Primebank | $78.07M | 2.7% |
| 8 | Rivers Edge Bank | $61.21M | 2.1% |
| 9 | Citizens State Bank | $24.66M | 0.8% |
Deposits are booked at the branch office that holds them (FDIC Summary of Deposits), which is not always where the depositor lives - online banks concentrate deposits at a few offices.
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