ZIP code · Perth Amboy · New Jersey · United States

ZIP code 08861 — Perth Amboy

ZIP code 08861 serves Perth Amboy, New Jersey.

Postal code
08861
Single source Value from one source, not cross-checked.
City
Perth Amboy
County
Middlesex FIPS 34023
State
New Jersey
Country
United States
Coordinates
40.5176, -74.2754 — precision precise (locality)
View on OpenStreetMap
Population
58,264 (ZCTA, ACS 5-year)
Population density
11,423 / sq mi
Land area
5.1 sq mi (13.2 km²) (ZCTA, ACS 5-year)
Median household income
$60,464
Per-capita income
$28,163
Median age
37.3
Households
20,367
Housing units
21,032
Median home value
$340,900
Median gross rent
$1,623 / month
Congressional district
NJ-6 (119th Congress)
USDA hardiness zone
7b (5 to 10 °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, 908
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 23°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F404351637281878578675645
Avg low °F232431415160666457443528
Precip in3.73.04.43.94.04.84.84.74.24.13.44.5

NOAA 1991–2020 climate normals from the nearest station: NEW BRUNSWICK 3 SE (8.3 mi) · NOAA NCEI

Places in ZIP 08861

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