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Brown County, WI Bank Deposit Market Share

Associated Bank, N.A. holds the largest share of deposits in Brown County, WI, 53.3%, followed by Nicolet National Bank (17.3%) and BMO Bank N.A. (7.9%). 16 institutions hold $13.77B at 58 offices as of June 30, 2026, down 3.6% from 2025.

Institutions: 16 Offices: 58 Deposits: $13.77B Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Associated Bank, N.A. (1.62 points); Bank First, N.A. (0.28 points); North Shore Bank (0.15 points).

Lost: Nicolet National Bank (-1.50 points); BMO Bank N.A. (-1.27 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 Associated Bank, N.A. 11 $7.33B 53.27% +1.62 pts -0.6%
2 Nicolet National Bank 7 $2.39B 17.35% -1.50 pts -11.3%
3 BMO Bank N.A. 8 $1.09B 7.95% -1.27 pts -16.9%
4 Bank First, N.A. 3 $595.1M 4.32% +0.28 pts 3.0%
5 JPMorgan Chase Bank, N.A. 4 $483.3M 3.51% +0.11 pts -0.6%
6 Johnson Bank 2 $438.8M 3.19% +0.14 pts 0.8%
7 Wells Fargo Bank, N.A. 4 $385.2M 2.80% +0.13 pts 1.0%
8 U.S. Bank N.A. 3 $267.9M 1.95% +0.01 pts -2.9%
9 North Shore Bank 6 $204.0M 1.48% +0.15 pts 7.6%
10 Bay Bank 2 $146.5M 1.06% +0.02 pts -2.0%
11 Greenleaf Bank 2 $135.5M 0.98% +0.10 pts 7.3%
12 Bank of Luxemburg 2 $130.7M 0.95% +0.05 pts 2.0%
13 Premier Community Bank 1 $70.2M 0.51% +0.04 pts 5.5%
14 Fortifi Bank 1 $57.5M 0.42% +0.09 pts 22.5%
15 UMB Bank, N.A. 1 $33.1M 0.24% +0.04 pts 15.4%
16 Range Bank 1 $3.8M 0.03% -0.02 pts -38.8%

About this list

Deposits are those held at each institution's offices in Brown 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 Green Bay, WI metro area Wisconsin bank directory

Other counties in Wisconsin

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