Mercer County Property Tax Calculator

Locality estimate page for Mercer County, New Jersey. Use this county/locality rate for faster screening, then confirm parcel-specific details with your local tax authority.

County/Locality Effective Rate

2.36%

State Effective Rate

1.88%

Sample Annual Tax Difference

$2,040

Median Home Value (ACS)

$377,700

Median Annual Tax Bill (ACS)

$8,909

Owner-Occupied Households

89,569

The typical owner-occupied home in Mercer County is valued at $377,700 with a median real estate tax bill of $8,909 per year — an effective rate of 2.36%. Both figures come from the same ACS release, so the ratio is an estimate rather than an aggregate of individual bills.

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State Mortgage Context: New Jersey

Some counties follow standard FHA limits while higher-cost counties may qualify for elevated FHA limits.

State Effective Tax Rate

1.88%

FHA 1-Unit Floor

$541,287

FHA 1-Unit Ceiling

$1,249,125

View New Jersey FHA Context Browse More New Jersey County Pages

In Mercer County, New Jersey, the current county-level estimate is 2.36%, or approximately $9,440 annually on a $400,000 home.

How to Use This County Estimate

Step 1

Enter your property value and assessment assumptions.

Step 2

Apply exemptions that may reduce taxable value.

Step 3

Compare county/locality estimate against statewide fallback.

Mercer County Property Tax Snapshot

Estimated effective rate: 2.36% · vs New Jersey: 1.88% · vs national benchmark: 0.90%

Home value	Estimated annual tax	Estimated monthly tax
$250,000	$5,900	$492
$400,000	$9,440	$787
$500,000	$11,800	$983
$750,000	$17,700	$1,475
$1,000,000	$23,600	$1,967

Compare Nearby Property Taxes

Source Transparency

Source: U.S. Census Bureau, ACS 5-Year Estimates (B25103 / B25077)

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Last updated: August 2026

Estimates only. Confirm parcel-specific amounts with the official local taxing authority.

Need Statewide Context?

Visit New Jersey mortgage snapshot or return to the national calculator hub.