Cost to Own
United States › Wisconsin › Dane County › Sun Prairie Population 36,455 Data vintage ACS 2023 5-Year Rates updated 2026-10-15
The part nobody budgets Even with the mortgage fully paid off, the median home here still costs $1,080 a month in taxes, insurance, utilities and upkeep. See the full Dane County picture

Total monthly cost of ownership

Cost to Own a Home in Sun Prairie, Wisconsin

A $340,000 home here costs

$2,963

per month, all in, with 20% down at today's 7.40% 30-year fixed rate. By the 28% rule that takes a household income of about $127,000 a year.

P&I 64%Tax 17%Insurance 3%Utilities 6%Upkeep 10%

A standard mortgage calculator would have told you $1,883. The real number is $1,080 higher every month, 57% more than the payment most buyers budget for.

Compare Dane County with anywhere in America · full county breakdown

Sun Prairie median: $339,800
Under 20% adds PMI
Freddie Mac PMMS
WI average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $272,000 borrowed $1,883
Property tax1.828% effective rate for Sun Prairie itself $518
Homeowners insuranceWisconsin averages $780/yr (NAIC), or 0.309% of home value $88
Electricity19.06ยข/kWh, Wisconsin residential average, EIA $123
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $283
Total monthly $2,963

Sun Prairie against Dane County and Wisconsin

MeasureSun PrairieDane County
Median home value$339,800$366,100
Median property tax$6,212$6,276
Effective tax rate1.828%1.714%
Median gross rent$1,374$1,345
Population36,455564,777

The weather behind that power bill

Sun Prairie sits in Dane County, which averages a high of 82.2°F in its hottest month and a low of 11.1°F in its coldest, with 40.18" of precipitation a year and 37% of it in a single three-month stretch. That climate drives 640 cooling and 7,097 heating degree days, which is what sets the $123 electricity line above.

See the full climate breakdown for Dane County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in Dane County

Full Dane County cost breakdown · Every county in Wisconsin

Talk to someone who works this market

These are Sun Prairie averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works Sun Prairie every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in Sun Prairie I already own here and may sell

Common questions

How much does it cost to own a home in Sun Prairie?

A $340,000 home in Sun Prairie, Wisconsin costs approximately $2,963 per month with 20% down at 7.4%. That is $1,883 principal and interest, $518 property tax, $88 homeowners insurance, $191 utilities and $283 set aside for maintenance.

What is the property tax rate in Sun Prairie?

Sun Prairie has an effective property tax rate of 1.828%, based on a median home value of $339,800 and median real estate taxes of $6,212. That is higher than the Dane County average of 1.714%.

What is the average home price in Sun Prairie?

The median owner-occupied home value in Sun Prairie, Wisconsin is $339,800, against $366,100 across Dane County.

Is it cheaper to rent or buy in Sun Prairie?

Median gross rent in Sun Prairie is $1,374 a month, against $2,963 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

What salary do you need to buy a home in Sun Prairie?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Sun Prairie, Wisconsin at today's rate takes a household income of roughly $127,000 a year. That covers the full $2,963 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Sun Prairie, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance, NAIC average premium for Wisconsin.
  • Electricity price, EIA Electric Power Monthly Table 5.6.A.
  • Mortgage rate, Freddie Mac PMMS, refreshed weekly.
  • Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.

Full methodology