Rock County Property Tax Calculator

Locality estimate page for Rock County, Wisconsin. Use this county/locality rate for faster screening, then confirm parcel-specific details with your local tax authority.

County/Locality Effective Rate

1.60%

State Effective Rate

1.32%

Sample Annual Tax Difference

$1,190

Median Home Value (ACS)

$231,600

Median Annual Tax Bill (ACS)

$3,703

Owner-Occupied Households

47,819

The typical owner-occupied home in Rock County is valued at $231,600 with a median real estate tax bill of $3,703 per year — an effective rate of 1.60%. Both figures come from the same ACS release, so the ratio is an estimate rather than an aggregate of individual bills.

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State Mortgage Context: Wisconsin

Most counties in this state follow the standard FHA floor framework.

State Effective Tax Rate

1.32%

FHA 1-Unit Floor

$541,287

FHA 1-Unit Ceiling

$1,249,125

View Wisconsin FHA Context Browse More Wisconsin County Pages

In Rock County, Wisconsin, the current county-level estimate is 1.60%, or approximately $6,400 annually on a $400,000 home.

How to Use This County Estimate

Step 1

Enter your property value and assessment assumptions.

Step 2

Apply exemptions that may reduce taxable value.

Step 3

Compare county/locality estimate against statewide fallback.

Rock County Property Tax Snapshot

Estimated effective rate: 1.60% · vs Wisconsin: 1.32% · vs national benchmark: 0.90%

Home value	Estimated annual tax	Estimated monthly tax
$250,000	$4,000	$333
$400,000	$6,400	$533
$500,000	$8,000	$667
$750,000	$12,000	$1,000
$1,000,000	$16,000	$1,333

Compare Nearby Property Taxes

Source Transparency

Source: U.S. Census Bureau, ACS 5-Year Estimates (B25103 / B25077)

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Last updated: August 2026

Estimates only. Confirm parcel-specific amounts with the official local taxing authority.

Need Statewide Context?

Visit Wisconsin mortgage snapshot or return to the national calculator hub.