ZIP code · Cornwall · New York · United States

ZIP code 12518 — Cornwall

ZIP code 12518 serves Cornwall, New York.

Postal code
12518
Single source Value from one source, not cross-checked.
City
Cornwall
County
Orange FIPS 36071
State
New York
Country
United States
Coordinates
41.4162, -74.0395 — precision estimated (postal-area centroid)
View on OpenStreetMap
Population
5,728 (ZCTA, ACS 5-year)
Population density
720 / sq mi
Land area
8 sq mi (20.6 km²) (ZCTA, ACS 5-year)
Median household income
$99,833
Per-capita income
$48,487
Median age
43
Households
2,340
Housing units
2,474
Median home value
$358,200
Median gross rent
$1,720 / month
Congressional district
NY-18 (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 code
845
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 85°F), coldest Jan (avg low 21°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F363947607280858376635141
Avg low °F212230415160656457463627
Precip in3.83.04.04.03.84.64.65.04.65.34.24.6

NOAA 1991–2020 climate normals from the nearest station: WEST POINT (4.5 mi) · NOAA NCEI

Places in ZIP 12518

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