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ZIP CODE TABULATION AREA

08638

New Jersey · 22,816 residents · 5.43 sq mi
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ZIP 08638 is home to 22,816 people in Mercer County. That trails the Mercer County median by roughly 34%. Density works out to 4,204 people per square mile. The foreign-born share is 23%. The median age is 35.9, younger than the US median of 38.9. Median home value sits at $245,100. Among the 20 ZIP codes in Mercer County, 08638 ranks 17th by median household income.

$66,875
US average: $82,259
$34,445
US average: $44,673
$245,100
US average: $376,019
32.3%
US average: 35.6%
Land area
5.43 sq mi
Age, sex & households
Under 18
20.6%
Age 65+
14.7%
47.0%
53.0%
2.43 people
Race & ethnicity · 2024
2024
White, non-Hispanic29.4%(6,707)
Black43%(9,811)
Hispanic / Latino20.5%(4,685)
Asian1.8%(418)
Other5.2%(1,195)
85
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.7
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Mercer County
Income rank vs other ZIPs
LOWEST17TH OF 20HIGHEST
Adjacent ZIPs
08520$118,010
08525$165,324
08534$175,573
08540$176,983
Frequently asked

How many people live in ZIP code 08638?

ZIP code 08638 has about 22,816 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 08638?

The typical household in ZIP code 08638 earns about $66,875 a year. Half of households make more than that, and half make less.

Is ZIP code 08638 expensive?

In ZIP code 08638, the median home is worth about $245,100, and the typical rent is about $1,593 a month.

How educated are people in ZIP code 08638?

About 32.3% of adults age 25 and over in ZIP code 08638 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 08638?

About 17.8% of people in ZIP code 08638 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024