ZIP code · Monmouth Junction · New Jersey · United States

ZIP code 08852 — Monmouth Junction

ZIP code 08852 serves Monmouth Junction, New Jersey.

Postal code
08852
Single source Value from one source, not cross-checked.
City
Monmouth Junction
County
Middlesex FIPS 34023
State
New Jersey
Country
United States
Coordinates
40.3869, -74.5558 — precision precise (locality)
View on OpenStreetMap
Population
17,333 (ZCTA, ACS 5-year)
Population density
1,300 / sq mi
Land area
13.3 sq mi (34.5 km²) (ZCTA, ACS 5-year)
Median household income
$121,771
Per-capita income
$63,075
Median age
40.5
Households
6,655
Housing units
6,721
Median home value
$489,100
Median gross rent
$1,897 / month
Congressional district
NJ-12 (119th Congress)
USDA hardiness zone
7a (0 to 5 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/New_York (UTC−5 / UTC−4 DST)
Area codes
732, 848
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 87°F), coldest Jan (avg low 21°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F414351637382878578665546
Avg low °F212330394858636154423327
Precip in3.52.64.33.74.14.64.84.34.24.03.34.2

NOAA 1991–2020 climate normals from the nearest station: HIGHTSTOWN 2 W (8.3 mi) · NOAA NCEI

Places in ZIP 08852

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page