Total monthly cost of ownership
Cost to Own a Home in Janesville, Iowa
A $215,000 home here costs
$1,827per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $1,105. The real number is $722 higher every month — 65% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Janesville against Black Hawk County and Iowa
| Measure | Janesville | Black Hawk County |
|---|---|---|
| Median home value | $214,700 | $182,400 |
| Median property tax | $3,047 | $2,790 |
| Effective tax rate | 1.419% | 1.530% |
| Median gross rent | $625 | $962 |
| Population | 1,012 | 130,693 |
Janesville extends across 2 counties. Figures here use Black Hawk County, where most of its housing sits.
The weather behind that power bill
Janesville sits in Black Hawk County, which averages a high of 85.0°F in its hottest month and a low of 10.7°F in its coldest, with 36.29" of precipitation a year and 40% of it in a single three-month stretch. That climate drives 917 cooling and 6,714 heating degree days, which is what sets the $127 electricity line above.
See the full climate breakdown for Black Hawk County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Black Hawk County
Full Black Hawk County cost breakdown · Every county in Iowa
Common questions
How much does it cost to own a home in Janesville?
A $215,000 home in Janesville, Iowa costs approximately $1,827 per month with 20% down at 6.66%. That is $1,105 principal and interest, $254 property tax, $94 homeowners insurance, $195 utilities and $179 set aside for maintenance.
What is the property tax rate in Janesville?
Janesville has an effective property tax rate of 1.419%, based on a median home value of $214,700 and median real estate taxes of $3,047. That is lower than the Black Hawk County average of 1.530%.
What is the average home price in Janesville?
The median owner-occupied home value in Janesville, Iowa is $214,700, against $182,400 across Black Hawk County.
Is it cheaper to rent or buy in Janesville?
Median gross rent in Janesville is $625 a month, against $1,827 to own the median home all in. Renting costs less month to month here, though renting builds no equity.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Janesville — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for Iowa.
- 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.