Skip to main content

Lists · Deposits by county

Polk County, WI Bank Deposit Market Share

Nicolet National Bank holds the largest share of deposits in Polk County, WI, 20.4%, followed by Old National Bank (18.5%) and First Resource Bank (15.7%). 11 institutions hold $945.4M at 14 offices as of June 30, 2026, up 17.1% from 2025.

Institutions: 11 Offices: 14 Deposits: $945.4M Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Nicolet National Bank (20.39 points, new to this market); First Resource Bank (7.15 points); Old National Bank (1.94 points).

Lost: Frandsen Bank & Trust (-2.81 points); Dairy State Bank (-1.16 points); Citizens State Bank - La Crosse (-1.11 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 Nicolet National Bank 2 $192.8M 20.39% +20.39 pts New
2 Old National Bank 1 $174.6M 18.47% +1.94 pts 30.9%
3 First Resource Bank 1 $148.9M 15.75% +7.15 pts 114.6%
4 Frandsen Bank & Trust 1 $91.2M 9.64% -2.81 pts -9.3%
5 Dairy State Bank 1 $61.8M 6.53% -1.16 pts -0.6%
6 Citizens State Bank - La Crosse 1 $61.5M 6.51% -1.11 pts 0.1%
7 U.S. Bank N.A. 1 $58.0M 6.13% -0.64 pts 6.1%
8 Hiawatha National Bank 1 $57.3M 6.06% -0.44 pts 9.1%
9 Sterling Bank 1 $38.9M 4.11% -0.46 pts 5.3%
10 Pillar Bank 3 $31.3M 3.31% +0.45 pts 35.3%
11 First National Community Bank 1 $29.1M 3.08% -0.07 pts 14.5%

About this list

Deposits are those held at each institution's offices in Polk 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 Wisconsin bank directory

Other counties in Wisconsin

Milwaukee CountyDane CountyWaukesha CountyBrown CountyMarathon CountyRacine CountyOutagamie CountyWashington CountyKenosha CountyLa Crosse CountyRock CountyOzaukee CountySheboygan CountyFond Du Lac CountyWood CountyWinnebago CountyWalworth CountySauk CountyEau Claire CountyJefferson CountyManitowoc CountySt. Croix CountyColumbia CountyPortage CountyDodge CountyGrant CountyGreen Lake CountyGreen CountyBarron CountyChippewa CountyDoor CountyMarinette CountyOneida CountyWaupaca CountyDouglas CountyMonroe CountyVilas CountyCalumet CountyPierce CountyTrempealeau County

More lists and rankings

Oldest banks De novo banks Largest credit unions Deposits by state Deposits by metro area Largest savings banks S corporation banks Industrial loan companies Non-depository trust companies Credit card banks Publicly traded banks Foreign bank branches New holding companies Largest banks by assets Bank failures Bank mergers All rankings

Open any institution for its full financials, trends and peer benchmarks. Free, no card required.

Start free, no card required

Explore more: deposits by state · deposits by metro area · all rankings