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Bank Deposits in Plymouth County, Iowa
Where bank deposits are booked in Plymouth County - FDIC Summary of Deposits, June 30, 2026.
Total bank deposits
$1.43B
Bank offices
15
Banks present
8
Top 4 banks' share
78.5%
Deposit market share in Plymouth County
| # | Bank | Branch deposits here | Share |
|---|---|---|---|
| 1 | American Bank, National Association | $445.03M | 31.2% |
| 2 | Primebank | $384.34M | 27.0% |
| 3 | Iowa State Bank | $184.53M | 12.9% |
| 4 | Northwest Bank | $104.49M | 7.3% |
| 5 | Midstates Bank, National Association | $98.28M | 6.9% |
| 6 | United Bank Of Iowa | $83.35M | 5.8% |
| 7 | Peoples Bank | $79.74M | 5.6% |
| 8 | The Security National Bank Of Sioux City, Iowa | $45.45M | 3.2% |
Credit unions with branches in Plymouth County
- Cent - 1 branch
Credit unions do not report deposits by branch, so only bank deposits are ranked above.
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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