Mercer County Property Tax Rate
New Jersey
Mercer County, New Jersey has an effective property tax rate of 2.36%, which is 157% higher than the national average of 0.92%. On a home valued at $377,700, homeowners pay approximately $8,909 per year in property taxes. Mercer County ranks #4 out of 21 counties in New Jersey for property tax rates.
$8,909
Per year
$377,700
2024 estimate
8.85%
Median income: $100,645
#4
of 21 counties in NJ
Tax Breakdown
With Mortgage
$9,074
median annual tax
Without Mortgage
$8,613
median annual tax
Homeowners with a mortgage in Mercer County pay on average $461 more per year than those without. This difference often reflects how property tax escrow accounts in mortgaged homes capture the full tax obligation.
How Mercer County Compares
Top Counties in New Jersey
Historical Property Tax Trends
| Year | Median Tax | Median Home Value | Effective Rate |
|---|---|---|---|
| 2020 | $7,765 | $290,100 | 2.68% |
| 2021 | $8,166 | $295,400 | 2.76% |
| 2022 | $8,576 | $327,600 | 2.62% |
| 2023 | $8,804 | $351,000 | 2.51% |
| 2024 | $8,909 | $377,700 | 2.36% |
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates
New Jersey Property Tax Exemptions
Available to Mercer County homeowners
Homestead Benefit
Average benefit approximately $250 (varies based on income and residence)
Homeowners with income under $150,000 who owned and occupied by October 1
Senior Freeze (PTR)
Reimbursement of property tax increases above base year amount
Homeowners age 65+ or disabled with income under $99,735 (for 2022 base year); must have lived in NJ 10+ years
Veteran Deduction
$250 annual deduction from property taxes
Honorably discharged veterans who served during wartime; active-duty service during certain periods
Disabled Veteran
100% exemption from property taxes
Veterans with 100% permanent and total service-connected disability
Property Tax Calculator
Estimate your annual property tax in Mercer County
Estimated Annual Property Tax
$7,080
$590/month · Rate: 2.36%
Nearby Counties
Quick Facts
Think your property tax is too high?
Homeowners save an average of $1,148/year by appealing their assessment.
Learn How to Appeal →Frequently Asked Questions
Data Source: U.S. Census Bureau, 2024 American Community Survey 5-Year Estimates. Effective tax rates are calculated by dividing median real estate taxes paid by median home value. Actual property tax rates may vary based on local taxing jurisdictions, exemptions, and assessment practices. This information is for general reference only and should not be used as a substitute for professional tax advice.