Home > NJ > Mercer County > Trenton > Zip 08609

Zip Code 08609 — Trenton, NJ

08609 is a ZIP Code associated with Trenton, NJ, located within Mercer. The postal region supports an estimated population of 15,938 residents across Data Pending housing units, with a population density of 4,674.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.225940, -74.741090)

Data MetricLocal Statistic
Postal / Zip Code08609
Primary CityTrenton
State / ProvinceNJ
CountyMercer
Total Population15,938
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density4,674.3 people/sq mi
TimezoneAmerica/New_York

How 08609 Compares

MetricZIP 08609Mercer CountyNJ State Average
Population15,938395,6719,343,809
Median IncomeData PendingN/AN/A
Population Density4,674.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 08629Trenton0.6 mi13,013N/A
Zip 08608Trenton1.4 mi1,250N/A
Zip 08638Trenton2.3 mi22,816N/A
Zip 08611Trenton2.4 mi31,995N/A
Zip 08619Trenton2.6 mi24,089N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →