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Mercer County, New Jersey: property tax rate, home values and income

Effective property tax rate

2.51%

5th highest of 21 counties in New Jersey

Median home value

$351,000

13th highest in New Jersey

Median household income

$96,333

12th highest in New Jersey

Population

383,286

Census ACS 2023

Sources: US Census Bureau, American Community Survey 5-year estimates · Updated 11/03/2026

In Mercer County, New Jersey the effective property tax rate is 2.51%. The median homeowner pays $8,804 a year in real estate taxes on a home with a median value of $351,000. That rate is the 5th highest of the 21 New Jersey counties with published data, and the 21st highest of 3,132 counties in the United States.

Property tax in Mercer County

The effective rate is the median real estate tax paid divided by the median home value. The New Jersey statewide average is 2.23%, so Mercer County is above it. Applying this county's rate to other home prices gives a rough idea of the yearly bill; actual bills depend on the school district, exemptions and the assessed value.

Home valueEstimated tax per yearPer month
$200,000$5,020$418
$300,000$7,530$628
$351,000 (county median)$8,800$734
$400,000$10,040$837
$500,000$12,550$1,046

Home values and incomes

The median home value is $351,000 (13th highest in New Jersey, 334th highest nationally) and the median household income is $96,333. Homes cost about 3.6 times a typical household's yearly income. Median gross rent is $1,515 a month. 61.9% of occupied homes are owner-occupied. Homeowners with a mortgage pay a median of $1,198 a year for insurance. For comparison, the New Jersey statewide median home value is $575,123.

Counties near Mercer County in the New Jersey property tax ranking

CountyEffective rateMedian home value
Salem County3.03%$223,000
Gloucester County2.81%$283,500
Warren County2.52%$323,100
Mercer County2.51%$351,000
Atlantic County2.47%$272,700
Sussex County2.47%$342,800
Cumberland County2.46%$205,600

Frequently asked questions

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

The effective property tax rate is 2.51% of home value per year, the 5th highest of 21 counties in New Jersey (Census ACS 2023 5-year estimates).

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

At the county's effective rate of 2.51%, about $7,530 a year (roughly $628 a month). Your actual bill depends on the assessed value, your school district and exemptions.

What is the median home value in Mercer County?

The median home value is $351,000 (Census ACS 2023 5-year estimates, owner-occupied homes).

What is the median household income in Mercer County?

The median household income is $96,333 (Census ACS 2023 5-year estimates).