Rock County property tax
Homeowners in Rock County, Wisconsin typically pay about 1.60% of their home's value in property tax each year — a median bill of $3,703 on a median home value of $231,600.
Typical effective rate
1.60%
higher than 8% of U.S. counties
Median tax paid
$3,703
per year
Median home value
$231,600
In WI
#7
of 72 ranked counties
At a glance
- Effective rate 1.60% — 71% higher than the U.S. median of 0.94%, and 12% higher than the Wisconsin median of 1.42%.
- With vs. without a mortgage — median tax $3,749 for mortgaged homes, $3,625 for homes owned outright.
- State ranking — 7th highest effective rate of 72 ranked Wisconsin counties; nationally it sits around the 92th percentile.
Estimate a bill for Rock County
Apply this county's typical effective rate (1.60%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in Rock County, WI?
The typical effective property-tax rate in Rock County is 1.60% of a home's value per year, based on median taxes paid ($3,703) divided by the median home value ($231,600) in the Census ACS 2020–2024 5-year estimates. This is a typical burden for comparison, not a statutory mill rate.
How much is property tax on a typical home in Rock County?
The median owner-occupied home in Rock County is valued at $231,600, and the median real estate tax paid is $3,703 per year. Homes with a mortgage have a median tax of $3,749, versus $3,625 for homes without one.
How does Rock County compare to the rest of Wisconsin?
Rock County's effective rate is 12% higher than the Wisconsin median, ranking 7th of 72 ranked counties in the state.
Compare nearby Wisconsin counties
Counties ranked closest to Rock County by in-state effective rate. Open the comparison tool or see all Wisconsin counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 4 | Winnebago County | 1.63% | $3,679 |
| 5 | Dane County | 1.63% | $6,420 |
| 6 | Green County | 1.60% | $4,003 |
| 8 | Kenosha County | 1.57% | $4,179 |
| 9 | Lafayette County | 1.57% | $3,053 |
| 10 | Crawford County | 1.56% | $2,861 |
Official data & resources for Rock County
- Rock County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for Rock County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for Rock County — median home value.
- Federal forms & is property tax deductible? — IRS Pub 530, Schedule A and the SALT cap, plus your state tax agency.
Finding your exact bill
Your county or municipal assessor (sometimes called the appraisal district, property appraiser, or tax collector) sets the assessed value and the exact millage that produces your bill. Search for "[county name] [state] assessor" or "property tax" on an official .gov site.
Figures on this page are Census survey medians for the whole county (2020–2024 5-year), not an assessment of any individual property. Rates, exemptions and assessment practices vary by municipality and school district within a county.