12 banks and credit unions have branches in Sun Prairie. The Bank Fee Index holds published fees for 10 of them.
The count includes institutions based elsewhere that have a branch here.
Largest gap from Wisconsin
Sun Prairie counts institutions with a branch here, wherever headquartered. Wisconsin counts institutions headquartered in the state.
Sun Prairie
5 institutions with a branch here
$0
Wisconsin
75 institutions headquartered in Wisconsin
$29
U.S.
2,857 institutions in the index
$30
Chosen as the fee whose Sun Prairie median sits furthest from Wisconsin's in percentage terms, among fees at least 5 local institutions publish.
Pick a fee to compare Sun Prairie with Wisconsin and the U.S. Each amount below links to the fee schedule it was read from, and an empty cell says why.
Published amounts here run from $10 to $36.
Median published overdraft fee
Sun Prairie
8 institutions with a branch here
$30
Wisconsin
76 institutions headquartered in Wisconsin
$30
U.S.
2,605 institutions in the index
$30
Sun Prairie covers every institution with a branch here, wherever it is headquartered. Wisconsin covers institutions headquartered in the state. U.S. covers every institution in the Bank Fee Index.
12 institutions, 8 with a published overdraft fee.
Bank · based in Sun Prairie, WI · 3 branches here
Credit union, membership rules apply · based in Madison, WI · 2 branches here
Account not yet known
“OD (Overdraft) Coverage Fee | $28 each”
Bank · based in Racine, WI · 1 branch here
Account not yet known
“Overdraft (per item) ���������������������������������������������������������������������� $20�00”
Bank · based in Green Bay, WI · 1 branch here
Account not yet known
“Overdraft—check or debit paid … $32 per item”
Bank · based in Madison, WI · 1 branch here
Bank · based in Cincinnati, OH · 1 branch here
Account not yet known
“• U.S. Bank will charge an Overdraft Paid Fee of $36.00 for each overdraft item we pay on your behalf. Whether we”
Bank · based in Chicago, IL · 1 branch here
Bank · based in Evansville, IN · 1 branch here
Bank · based in Columbus, OH · 1 branch here
Account not yet known
“+$34 OVERDRAFT FEE)”
Bank · based in Oregon, WI · 1 branch here
Account not yet known
“Overdraft Fee | $25 Per Item”
Largest banks by local bank deposits
Share of the $1.9 billion in bank deposits at branches here, FDIC Summary of Deposits 2026. Credit unions report no deposits by branch.
County context: Dane County
Deposits and branches cover the City of Sun Prairie. Population and income cover Dane County, the county with most of Sun Prairie's bank branches, not the city alone. This is background. None of it sets or explains a fee.
Bank deposits
Change at branches here, 2021 to 2026
Bank branches
Change in branch count, 2016 to 2026
Population
Change between the 2022 and 2024 Census estimates
Median household income
Census estimate, 2024
Deposits and branches: FDIC Summary of Deposits, 2026 and earlier years. Population and income: Census American Community Survey 5-year estimates for Dane County.
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