ZIP code · Andover · New Jersey · United States

ZIP code 07821 — Andover

ZIP code 07821 serves Andover, New Jersey.

Postal code
07821
Single source Value from one source, not cross-checked.
City
Andover
County
Sussex FIPS 34037
State
New Jersey
Country
United States
Coordinates
40.9614, -74.7524 — precision precise (locality)
View on OpenStreetMap
Population
9,036 (ZCTA, ACS 5-year)
Population density
211 / sq mi
Land area
42.8 sq mi (110.8 km²) (ZCTA, ACS 5-year)
Median household income
$145,100
Per-capita income
$63,180
Median age
42.9
Households
3,472
Housing units
3,779
Median home value
$401,900
Median gross rent
$1,646 / month
Congressional districts
NJ-7 (also NJ-5) (119th Congress)
USDA hardiness zone
6b (-5 to 0 °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
862, 973
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 84°F), coldest Jan (avg low 19°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F363948617179848274635241
Avg low °F192028384857626052423225
Precip in3.32.84.13.83.84.55.14.84.34.63.44.2

NOAA 1991–2020 climate normals from the nearest station: ANDOVER AEROFLEX AP (3.4 mi) · NOAA NCEI

Places in ZIP 07821

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