Union County, NJ Property Tax Calculator
Average Residential Tax Bill (2024): $12,047
Union County has some of New Jersey's highest property tax rates, reflecting strong school systems and comprehensive municipal services across its suburban communities.
The NJ Division of Taxation's 2024 data shows Union County with the highest average residential tax bill statewide at $12,047.
This estimation tool is essential when comparing properties in Union County, as property taxes represent a significant portion of total monthly housing costs here.
Selecting a specific Union County municipality refines your estimate, as rates can vary meaningfully between neighboring towns despite similar property values.
This page provides estimates for planning and comparison. Actual tax bills vary by municipality and exemptions. Verify details with your local tax assessor.
For details on data sources and how estimates are calculated, see our methodology.
Calculate Your Property Tax
Tax Estimate
Enter property information and click "Calculate Property Tax" to see results
Towns in Union County
Browse property tax information for municipalities in Union County.
View all 5 towns in Union County →Average Residential Property Tax Trend in Union County
Planning context only — historical averages for comparison. Actual tax bills vary by municipality and exemptions.
Latest
$12,047 (2024)
Year-over-Year Change
+$132 (+1.1%) from 2023
5-Year Change
+$551 (+4.8%) from 2021
Data reflects county-wide averages and may not represent individual municipality tax bills. Years shown are tax years as reported by the NJ Division of Taxation.
Learn more about how estimates are calculated in our methodology.
Related Resources
Union County Property Tax FAQ
Common questions about property taxes in this county
Property taxes in Union County are calculated based on your property's assessed value multiplied by the county's effective tax rate. The rate includes county, municipal, school district, and other local tax components. Our calculator uses current Union County tax rates to provide accurate estimates.