Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — CITY/NJ/FLAGTOWN

Flagtown ZIP code, New Jersey

The ZIP code for Flagtown, NJ is 08821, and its area code is 908.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
930
Area code
908

NANPA lists no telephone rate centre for Flagtown itself, so these are the area codes of the nearest one, Neshanic (1.8 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Flagtown uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Flagtown in numbers

About 930 people live in Flagtown, in 309 households. The median household income is $229,612 a year, 2.2 times the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $689,000 (52% above the New Jersey median). The median age is 44.2; 57.3% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 23 minutes.

Population930Flagtown930
Households309Flagtown309
Median age44.2Flagtown44.2New Jersey40.1US 38.9
Median household income$229,612Flagtown$229,612New Jersey$103,556US $80,734
Median home value$689,000Flagtown$689,000New Jersey$454,400US $332,700
Bachelor's degree or higher57.3%Flagtown57.3%New Jersey43.6%US 35.7%
Mean commute22.5 minFlagtown22.5 minNew Jersey30.5 minUS 26.4 min
Population density544 / sq miFlagtown544 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Flagtown CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Flagtown

ZIP codes with the USPS city name Flagtown
ZIP City Type Population Median income Median home
08821 Flagtown , NJ Standard 283 $155,833 $443,300

Other ZIP codes overlapping Flagtown

These ZIP codes cover part of Flagtown but are addressed as somewhere else.

ZIP codes overlapping Flagtown
ZIP City Type Population Median income Median home
08844 Hillsborough , NJ Standard 44,463 $153,556 $547,700

Map of Flagtown ZIP codes

08821

The ZIP codes of Flagtown, NJ, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Flagtown

The nearest larger towns are Hillsborough (22,585 people, 2.2 mi), Neshanic Station (5,640 people, 2.4 mi) and Bradley Gardens (14,165 people, 3.7 mi).

Towns near Flagtown
TownPopulationDistance
Hillsborough 22,585 2.2 mi
Neshanic Station 5,640 2.4 mi
Bradley Gardens 14,165 3.7 mi
Raritan 8,368 4.1 mi
Belle Mead 6,394 4.1 mi
Somerville 13,410 5.5 mi
Manville 10,921 5.5 mi
Blackwells Mills 10,301 5.7 mi
Bridgewater Center 6,505 6.0 mi
Finderne 6,489 6.7 mi
Green Knoll 6,789 7.0 mi
Franklin Center 6,646 7.9 mi
White House Station 3,963 8.0 mi
Martinsville 11,559 8.2 mi

More nearby: every ZIP code in Somerset County · New Jersey ZIP codes

Cite this page

zipcodes.pro. “Flagtown, NJ ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nj/flagtown

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