Home > NJ > Warren County > Stewartsville > Zip 08886

Zip Code 08886 — Stewartsville, NJ

08886 is a ZIP Code associated with Stewartsville, NJ, located within Warren. 08886 ranks #6 out of 16 ZIP codes in Warren County by population (and #388 out of 598 in NJ). The area supports an estimated population of 6,435 residents across Data Pending housing units, with a population density of 160.7 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.693020, -75.105650)

Data MetricLocal Statistic
Postal / Zip Code08886
Primary CityStewartsville
State / ProvinceNJ
CountyWarren
Total Population6,435
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density160.7 people/sq mi
TimezoneAmerica/New_York

How 08886 Compares

MetricZIP 08886Warren CountyNJ State Average
Population6,435116,142 (Total)9,343,809 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density160.7 /sq mi----
County Pop Rank#6 of 16----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 08865Phillipsburg2.6 mi31,427N/A
Zip 08804Bloomsbury3.4 mi3,465N/A
Zip 08802Asbury4.3 mi4,552N/A
Zip 07882Washington6.6 mi15,115N/A
Zip 08848Milford6.9 mi8,134N/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 →