Rock County Property Taxes
Effective Tax Rate
0.00%
18.5% above state avgMedian Annual Tax
$0
$304/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
1.69%
At a Glance
Median Home Value
$215,900
State avg $217,832
Tax w/ Mortgage/yr
$3,701
$308/mo escrow
Tax w/o Mortgage/yr
$3,566
$297/mo
State Tax Rate Rank
#67
of 72 counties (1 = lowest)
Homeowner context
What this means for a Rock County homeowner
Use these county medians as a planning baseline. Your actual bill depends on assessed value, exemptions, millage, and local taxing districts.
Tax pressure
1.69%
0.28 percentage points above the state average
Typical bill
$3,652
$571 above the state median
State position
#67
Ranked from lowest to highest effective rate across 72 Wisconsin counties.
Data Story
About Property Taxes in Rock County, Wisconsin
Rock County's taxes run above national norm
At 1.692%, Rock County's effective tax rate sits just below the national median of 1.700%, placing it in the upper-middle tier nationally. The median property tax of $3,652 reflects both moderate home values and relatively high rates.
Wisconsin's third-highest rate statewide
Rock County's 1.692% effective rate far exceeds Wisconsin's 1.436% average, ranking among the state's costliest counties. Homeowners here pay roughly $571 more annually than the typical Wisconsin resident.
Second only to Racine County locally
Rock County's 1.692% rate trails only Racine County (1.700%) in this region, dramatically exceeding Sauk County (1.504%), Richland County (1.411%), and all northern peers. It's firmly in the high-tax category for southern Wisconsin.
Median bill averages $3,652 yearly
A typical Rock County home valued at $215,900 incurs $3,652 in annual property taxes. Homeowners with mortgages pay $3,701, while mortgage-free owners average $3,566.
Assessment appeals hold real value here
Rock County's high tax rates make careful assessment review essential—even a small reduction in assessed value generates meaningful annual savings. Homeowners should compare their valuations to recent comparable sales and appeal if justified.
How Rock County Compares
Median Annual Property Tax
Rock County
1.69%
Effective rate
Wisconsin Avg
1.41%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Rock County, Wisconsin?
How much are property taxes in Rock County?
How does Rock County compare to the Wisconsin average?
What is the median home value in Rock County, Wisconsin?
Why is Rock County property tax rate higher than the Wisconsin average?
How does Rock County rank for property taxes in Wisconsin?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in Wisconsin
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.
Estimates are informational only and are not tax, legal, financial, or assessment appeal advice. Verify parcel-specific amounts with the county assessor or tax collector.