Monroe Township, NJ ZIP code
The ZIP code for Monroe Township, New Jersey is 08831. It is in Middlesex County.
- Population in these ZIPs
- 55,658
- Avg. median income
- $109,000population-weighted
- Typical home value
- $603,700population-weighted
- Metro area
- New York-Newark-Jersey City, NY-NJ
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Monroe Township, NJ ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 08831 | 55,658 | $109,042 | $603,700 |
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 Monroe Township
- Helmetta 3 mi
- Dayton 4 mi
- Spotswood 5 mi
- Cranbury 5 mi
- Englishtown 6 mi
- East Brunswick 7 mi
- Old Bridge 7 mi
- Monmouth Junction 7 mi
- Hightstown 8 mi
- Sayreville 8 mi
- Milltown 8 mi
- North Brunswick 8 mi
Frequently asked questions
What is the ZIP code for Monroe Township, NJ?
The ZIP code for Monroe Township, NJ is 08831.
What county is Monroe Township, New Jersey in?
Monroe Township ZIP codes are in Middlesex County.