ZIP Code 08638

ZIP code 08638 is classified by USPS as a standard delivery area and covers roughly 14.9 square miles in Trenton, Mercer County, New Jersey. The area is home to 22,832 residents, producing a population density of 1,532 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 08638 against New Jersey and the nation.

On the economic side, the median household income for ZIP 08638 sits at $66,875 (45% below the New Jersey average), while per-capita income is $34,445. The poverty rate stands at 17.8% and the unemployment rate at 7.7%. On housing, the median home value is $245,100 (53% below the state average) with median rent at $1,593 per month, and 58.0% of occupied units are owner-occupied, a direct signal of whether 08638 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 32.3% of adults hold a bachelor's degree or higher, the median age is 35.9, and the average commute is 26 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Mercer County, so you can benchmark 08638 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →