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Lists · Deposits by county

St. Croix County, WI Bank Deposit Market Share

Associated Bank, N.A. holds the largest share of deposits in St. Croix County, WI, 18.9%, followed by Hiawatha National Bank (18.1%) and Citizens State Bank (15.8%). 13 institutions hold $2.07B at 21 offices as of June 30, 2026, down 1.9% from 2025.

Institutions: 13 Offices: 21 Deposits: $2.07B Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Nicolet National Bank (3.90 points, new to this market); Associated Bank, N.A. (1.94 points); First National Community Bank (1.02 points).

Lost: Old National Bank (-2.81 points); Hiawatha National Bank (-0.61 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 Associated Bank, N.A. 3 $391.2M 18.88% +1.94 pts 9.3%
2 Hiawatha National Bank 3 $375.8M 18.14% -0.61 pts -5.1%
3 Citizens State Bank 3 $327.2M 15.79% +0.99 pts 4.6%
4 First National Community Bank 3 $282.7M 13.65% +1.02 pts 6.0%
5 U.S. Bank N.A. 1 $174.5M 8.42% +0.20 pts 0.5%
6 Wells Fargo Bank, N.A. 1 $141.2M 6.82% +0.47 pts 5.3%
7 Pillar Bank 1 $107.1M 5.17% +0.36 pts 5.5%
8 Old National Bank 1 $98.7M 4.77% -2.81 pts -38.3%
9 Nicolet National Bank 1 $80.8M 3.90% +3.90 pts New
10 Security Financial Bank 1 $43.0M 2.08% +0.01 pts -1.5%
11 First State Bank and Trust 1 $39.3M 1.90% +0.30 pts 16.8%
12 JPMorgan Chase Bank, N.A. 1 $10.1M 0.49% +0.22 pts 79.9%
13 The First National Bank of River Falls 1 $0 <0.01% 0.00 pts New

About this list

Deposits are those held at each institution's offices in St. Croix 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

Wisconsin deposits by institution Minneapolis-St. Paul-Bloomington, MN-WI metro area Wisconsin bank directory

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