Flagtown, NJ ZIP code
The ZIP code for Flagtown, New Jersey is 08821. It is in Somerset County.
- Population in these ZIPs
- 283
- Avg. median income
- $155,800population-weighted
- Typical home value
- $443,300population-weighted
- Metro area
- New York-Newark-Jersey City, NY-NJ
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Flagtown, NJ ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 08821 | 283 | $155,833 | $443,300 |
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 Flagtown
- Hillsborough 2 mi
- Neshanic Station 3 mi
- Raritan 4 mi
- Somerville 5 mi
- Belle Mead 5 mi
- Manville 5 mi
- Three Bridges 6 mi
- Zarephath 6 mi
- Bridgewater 6 mi
- Whitehouse Station 7 mi
- Skillman 7 mi
- Franklin Park 9 mi
Frequently asked questions
What is the ZIP code for Flagtown, NJ?
The ZIP code for Flagtown, NJ is 08821.
What county is Flagtown, New Jersey in?
Flagtown ZIP codes are in Somerset County.