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Winneshiek County, IA Bank Deposit Market Share

Decorah Bank and Trust Company holds the largest share of deposits in Winneshiek County, IA, 44.1%, followed by Waukon State Bank (15.6%) and Luana Savings Bank (10.8%). 9 institutions hold $1.25B at 14 offices as of June 30, 2026, up 9.4% from 2025.

Institutions: 9 Offices: 14 Deposits: $1.25B Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Waukon State Bank (0.44 points); Cusb Bank (0.21 points); Northeast Security Bank (0.10 points).

Lost: Fidelity Bank & Trust (-0.34 points); BMO Bank N.A. (-0.30 points); Luana Savings Bank (-0.08 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 Decorah Bank and Trust Company 2 $552.6M 44.13% +0.06 pts 9.6%
2 Waukon State Bank 2 $194.9M 15.57% +0.44 pts 12.6%
3 Luana Savings Bank 1 $135.0M 10.78% -0.08 pts 8.7%
4 Citizens Savings Bank 2 $115.9M 9.25% -0.04 pts 9.0%
5 Fidelity Bank & Trust 2 $87.0M 6.95% -0.34 pts 4.3%
6 BMO Bank N.A. 2 $51.1M 4.08% -0.30 pts 1.9%
7 Cusb Bank 1 $46.4M 3.70% +0.21 pts 16.1%
8 Kerndt Brothers Savings Bank 1 $40.7M 3.25% -0.06 pts 7.6%
9 Northeast Security Bank 1 $28.6M 2.28% +0.10 pts 14.3%

About this list

Deposits are those held at each institution's offices in Winneshiek County as of June 30, 2026, from the FDIC Summary of Deposits, whatever state the institution is headquartered in. Market share is the institution's deposits divided by all deposits in the market. Shares are by bank charter, not rolled up to the holding company, and cover FDIC-insured institutions only, so credit unions are not included. Each office is placed in its county and metro area by the FDIC branch directory; the few offices the directory does not list are left out of the market and of every share.

Share change compares the institution's share in 2025 and 2026 in percentage points. Deposit change compares its deposits here in the two years and includes deposits that moved through mergers and branch sales; "New" means it had no offices here a year earlier. Offices that closed during the year are placed by their ZIP code or city.

Wider markets

Iowa deposits by institution Iowa bank directory

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