ZIP code · Cornwallville · New York · United States

ZIP code 12418 — Cornwallville

ZIP code 12418 serves Cornwallville, New York.

Postal code: 12418
Single source Value from one source, not cross-checked.
City: Cornwallville
County: Greene FIPS 36039
State: New York
Country: United States
Coordinates: 42.3629, -74.1631 — precision precise (locality)
View on OpenStreetMap
Population: 321 (ZCTA, ACS 5-year)
Population density: 23 / sq mi
Land area: 13.9 sq mi (35.9 km²) (ZCTA, ACS 5-year)
Median household income: $97,750
Per-capita income: $65,139
Median age: 55.7
Households: 149
Housing units: 450
Median home value: $261,600
Congressional district: NY-19 (119th Congress)
USDA hardiness zone: 5b (-15 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 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.

Tools: compare 12418 with another ZIP · ZIPs within 25 miles · distance from 12418

Climate — monthly normals

Warmest month Jul (avg high 84°F), coldest Jan (avg low 16°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	33	37	45	59	71	79	84	82	75	62	50	39
Avg low °F	16	17	25	36	47	56	60	59	51	40	31	23

NOAA 1991–2020 climate normals from the nearest station: CAIRO 3 NW (7.4 mi) · NOAA NCEI

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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

Map of ZIP code 12418

Climate — monthly normals

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