Stewartsville, NJ ZIP code
The ZIP code for Stewartsville, New Jersey is 08886. It is in Warren County.
- Population in these ZIPs
- 6,435
- Avg. median income
- $161,200population-weighted
- Typical home value
- $504,200population-weighted
- Metro area
- Allentown-Bethlehem-Easton, PA-NJ
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Stewartsville, NJ ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 08886 | 6,435 | $161,168 | $504,200 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Stewartsville
- Phillipsburg 3 mi
- Bloomsbury 3 mi
- Asbury 4 mi
- Milford 6 mi
- Washington 7 mi
- Hampton 7 mi
- Changewater 9 mi
- Clinton 10 mi
- Belvidere 10 mi
- Glen Gardner 10 mi
- Pittstown 11 mi
- High Bridge 11 mi
Frequently asked questions
What is the ZIP code for Stewartsville, NJ?
The ZIP code for Stewartsville, NJ is 08886.
What county is Stewartsville, New Jersey in?
Stewartsville ZIP codes are in Warren County.