Warren County, New Jersey property tax

Median property tax, home value and effective rate (Census 2020–2024)

Updated Oct 17, 2026, 1:57 AM ET
Effective property tax rate
2.34%

Homeowners in Warren County, New Jersey paid a median $8,119 a year in property tax on a median home worth $346,500, an effective rate of about 2.34% (Census 2020–2024).

Census ACS 2020–2024 5-year medians

#17 lowest of 21New Jersey counties by effective rate

2.11%New Jersey statewide · US 0.94%
Median tax paid
$8,119
per year, 2020–24
Median home value
$346,500
owner-occupied
Effective rate
2.34%
tax ÷ value
Tax vs. income
8.0%
of $100,869 median household income
Owner costs
$2,317/mo
median with a mortgage, incl. tax & insurance

How Warren County compares

Effective rate (median tax ÷ median value)

Warren County2.34%
New Jersey2.11%
United States0.94%

Median tax paid per year

Warren County$8,119
New Jersey$9,590
United States$3,119

Tax on a home here

At the local 2.34% effective rate

Home valueEstimated yearly taxPer month
$150,000$3,515$293
$250,000$5,858$488
$350,000$8,201$683
$500,000$11,716$976

Cities and towns in Warren County

PlaceMedian taxMedian valueRate
Phillipsburg$5,140$193,2002.66%
Hackettstown$9,262$361,6002.56%
Washington$7,823$263,3002.97%
Beattystown$8,885$416,0002.14%
Panther Valley$10,001$369,9002.70%
Greenwich CDP (Warren County)$10,001$468,4002.14%
Belvidere$7,563$279,6002.70%
Alpha$6,479$261,5002.48%
Brass Castle$9,875$410,8002.40%
Upper Pohatcong$7,050$280,3002.52%
Oxford$7,040$188,6003.73%
Vienna$9,655$482,6002.00%
Stewartsville$9,576$469,5002.04%
Brookfield$5,213$324,4001.61%
Anderson$6,083$316,1001.92%
Great Meadows$8,649$394,6002.19%
Mountain Lake$5,943$340,0001.75%
Lopatcong Overlook$5,177$254,6002.03%
Johnsonburg$10,001$482,0002.07%
Blairstown$6,076$309,7001.96%
Port Colden$8,562$350,5002.44%
Finesville$9,149$274,1003.34%
Asbury$10,001$407,1002.46%
Hainesburg$8,188$406,3002.02%
Mount Hermon$8,875$405,2002.19%

Buying a home in Warren County? 2026 loan limits

Related

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25103 (median real estate taxes paid), B25077 (median home value), B25003, B25088, B19013 and B01003. These are 2020–2024 medians reported by owner-occupants, not 2026 tax bills or official mill rates. The effective rate here is median tax ÷ median home value. Actual bills depend on assessed value, exemptions (homestead, senior, veteran) and local levies. Check with your county assessor or treasurer. Not tax advice.

Frequently asked questions

What is the property tax rate in Warren County, New Jersey?

Homeowners in Warren County, New Jersey paid a median $8,119 a year in property tax on a median home worth $346,500, an effective rate of about 2.34% (Census 2020–2024).

How much is property tax on a $300,000 home in Warren County?

About $7,029 a year ($586 a month) at the 2.34% median effective rate. Your bill depends on assessed value and exemptions.

Is Warren County property tax high?

It ranks #17 lowest of 21 New Jersey counties. The state median effective rate is 2.11% and the US rate is 0.94%.

Where do I pay property tax in Warren County?

Bills are issued and collected by the Warren County treasurer or tax collector, based on values set by the county assessor.