ZIP code · Mamaroneck · New York · United States

ZIP code 10543 — Mamaroneck

ZIP code 10543 serves Mamaroneck, New York.

Postal code
10543
Single source Value from one source, not cross-checked.
City
Mamaroneck
County
Westchester FIPS 36119
State
New York
Country
United States
Coordinates
40.9525, -73.7350 — precision precise (locality)
View on OpenStreetMap
Population
21,022 (ZCTA, ACS 5-year)
Population density
4,910 / sq mi
Land area
4.3 sq mi (11.1 km²) (ZCTA, ACS 5-year)
Median household income
$128,418
Per-capita income
$72,618
Median age
40.5
Households
7,566
Housing units
8,141
Median home value
$710,000
Median gross rent
$2,030 / month
Congressional district
NY-16 (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 code
914 (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 23°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F404351637381868477655445
Avg low °F232531405059646356453629
Precip in3.93.34.44.34.34.64.54.44.64.43.94.7

NOAA 1991–2020 climate normals from the nearest station: DOBBS FERRY-ARDSLEY (6.4 mi) · NOAA NCEI

Places in ZIP 10543

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