ZIP code · Rio Grande · New Jersey · United States

ZIP code 08242 — Rio Grande

ZIP code 08242 serves Rio Grande, New Jersey.

Postal code
08242
Single source Value from one source, not cross-checked.
City
Rio Grande
County
Cape May FIPS 34009
State
New Jersey
Country
United States
Coordinates
39.0196, -74.8756 — precision precise (locality)
View on OpenStreetMap
Population
4,021 (ZCTA, ACS 5-year)
Population density
845 / sq mi
Land area
4.8 sq mi (12.3 km²) (ZCTA, ACS 5-year)
Median household income
$97,831
Per-capita income
$48,707
Median age
51.4
Households
1,852
Housing units
2,083
Median home value
$306,200
Median gross rent
$1,486 / month
Congressional district
NJ-2 (119th Congress)
USDA hardiness zone
8a (10 to 15 °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
609, 640 (from the nearest rate centre)
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 86°F), coldest Jan (avg low 29°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F434552627180868479685748
Avg low °F292935445463686762514133
Precip in3.23.04.13.33.53.53.94.03.84.23.34.0

NOAA 1991–2020 climate normals from the nearest station: CAPE MAY 2 NW (5.6 mi) · NOAA NCEI

Places in ZIP 08242

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