Union County property tax, in one number.
Half of Union County homeowners pay $10,000 or more a year in property tax, on a median home value of $529,200. The Census Bureau stops counting at $10,000, so the real median bill is higher and the effective rate of at least 1.89% is a floor.
Estimate my taxUnion County at a glance
Five numbers that shape a typical property tax bill here.
Property tax calculator
Enter a home value to see a typical yearly bill at Union County's average effective rate, or pick another area.
- Where you live matters.Among cities with enough data, rates range from about 1.86% in Kenilworth to 2.57% in Rahway.
- Share of income.The median bill equals about 9.7% of the median household income of $103,202. Because reported bills stop at $10,000, the real share is higher.
The data, charted
Effective rate compared
Owners vs renters
Effective rate by city
Largest New Jersey counties
| County | Median tax | Rate |
|---|---|---|
| Middlesex County | $9,712 | 2.10% |
| Union County | $10,000+ | 1.89%+ |
| Ocean County | $6,562 | 1.65% |
| Monmouth County | $10,000+ | 1.65%+ |
| Bergen County | $10,000+ | 1.61%+ |
| New Jersey | $9,590 | 2.11% |
Compare neighboring counties
Effective property tax rates in and around Union County.
Cities and towns in Union County
Places with at least 2,000 owner-occupied homes and reliable survey data.
- Elizabeth2.23%+ · $10,000+
- Linden2.38%+ · $10,000+
- Westfield1.05%+ · $10,000+
- Plainfield2.41% · $9,920
- Rahway2.57% · $9,916
- Summit1.01%+ · $10,000+
- Roselle2.63%+ · $10,000+
- New Providence1.30%+ · $10,000+
- Roselle Park2.26%+ · $10,000+
- Fanwood1.57%+ · $10,000+
- Mountainside1.23%+ · $10,000+
- Kenilworth1.86% · $9,727
Good to know
What is the property tax rate in Union County?
At least 1.89%. The median homeowner pays $10,000 or more a year on a $529,200 home. The Census Bureau caps reported taxes at $10,000, so the true median bill and rate are higher (ACS 2020–2024).
Why is my bill different from this estimate?
Your bill depends on your home's assessed value from the municipal tax assessor, the exact taxing units where you live (county, city, school district, special districts) and any exemptions you get. These figures are medians across all owner-occupied homes, not a bill for any address.
How current is this data?
It comes from the U.S. Census Bureau's American Community Survey 5-year estimates for 2020–2024, the latest release. Homeowners report the taxes they paid, so the numbers lag current bills by one to two years. We update the site when the Census Bureau publishes new estimates each December.
More: all New Jersey counties · U.S. county rankings · calculator for any county