Taxes & Insurance in Sun Prairie
Sun Prairie carries a real, above-median 1.88% effective property tax rate, Wisconsin's simple statewide income tax structure, and the same statewide homeowners-insurance range documented across this project's Wisconsin research.
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Learn moreA property tax rate above state and national medians
Sun Prairie's median effective property tax rate (1.88%, Ownwell) runs above both Wisconsin's own 1.43% statewide median and the 1.02% national median -- a real, disclosed fact reflecting Wisconsin's genuinely elevated statewide property-tax character.
Wisconsin's 4-bracket income tax, with no local layer
Wisconsin's real, 4-bracket progressive state income tax (3.50%, 4.40%, 5.30%, and a top rate of 7.65% on income over $315,310 for single filers in 2026) applies in Sun Prairie exactly as it does statewide, with no local or county piggyback layer.
A 5.5% combined sales tax
Dane County's combined sales tax rate runs 5.5% (Wisconsin's 5.0% state rate plus the county's own 0.5% rate), applying uniformly across Sun Prairie.
Statewide insurance costs, genuinely below several neighbors
No Sun Prairie-specific homeowners-insurance premium figure was found this pass -- Wisconsin's statewide average ran a real, disclosed $1,367-$1,897/year (midpoint ~$1,650), genuinely below Michigan, Minnesota, Illinois, and Iowa.
Key takeaways
- Sun Prairie's 1.88% effective property tax rate runs above both Wisconsin's statewide and the national median.
- Wisconsin's statewide 4-bracket income tax (3.50%-7.65%) applies with no local piggyback layer.
- A 5.5% combined sales tax applies uniformly across Dane County, including Sun Prairie.
- Wisconsin homeowners insurance runs genuinely below several neighboring states; confirm a current quote directly.
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