Zip Code 10543
Mamaroneck, New York — Westchester County
📍 ZIP code 10543 is in Mamaroneck, Westchester County, New York.
ZIP code 10543 is located in Mamaroneck, Westchester County, New York. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 21,022. The area code for ZIP code 10543 is 914.
Quick Answer
Zip code 10543 is in Mamaroneck, New York (Westchester County). It has a population of 21,022, median household income of $128,418, and median home value of $710,000.
Population
21,022
Income
$128,418
Home Value
$710,000
Climate
86°F / 23°F
About Zip Code 10543
Zip code 10543 is located in Mamaroneck, New York, within Westchester County. Home to approximately 21,022 residents, this area sits at an elevation of 45 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 914.
The median household income is $128,418 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $710,000, and the cost of living index is 225 (125% above the national average of 100).
Summers average a high of 86°F while winters drop to 23°F. The area receives about 51 in of rain and 33 in of snow annually. The zip code covers 4.1 square miles of land area and 0.2 square miles of water.
Key Statistics
21,022
$128,418
$710,000
Eastern (EST/EDT)
914
45 ft
4.1 sq mi
40.5
8,141
Advertisement
Compare With Nearby Zip Codes
| Metric | 10543 | 10538 | 10528 | 10804 | 10580 | 10801 |
|---|---|---|---|---|---|---|
| City | Mamaroneck, NY | Larchmont, NY | Harrison, NY | New Rochelle, NY | Rye, NY | New Rochelle, NY |
| Population | 21,022 | 17,709 | 13,822 | 15,228 | 18,073 | 41,984 |
| Median Income | $128,418 | $186,555 | $151,193 | $220,089 | $242,015 | $83,534 |
| Home Value | $710,000 | $1,185,300 | $934,100 | $894,100 | $1,834,100 | $555,000 |
| Cost of Living | 225 | 250 | 250 | 250 | 250 | 156 |
| Median Age | 40.5 | 41.5 | 40.8 | 45.4 | 41.6 | 38.9 |
Cost of Living
100 = National Average. Mamaroneck's cost of living is 125% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
5.5x
Demographics
Zip code 10543 has a population of 21,022 people with a median age of 40.5. There are 8,141 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Mamaroneck (10543) population trend from 2010 to 2024
↓ -10.1%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
86°F
23°F
51 in
33 in
Mamaroneck experiences warm summers with average highs around 86°F. Winters are cool with lows averaging 23°F. With 33 in of annual snowfall, residents should be prepared for significant winter weather.
Advertisement
Housing & Economy
Median Home Value
$710,000
Median Household Income
$128,418
With 8,141 housing units across 4.1 square miles, 10543 has a housing density of 1,986 units per square mile. The home price-to-income ratio is 5.5x.
Location & Geography
Latitude
40.9527°
Longitude
-73.7360°
Land Area
4.1 sq mi
Water Area
0.2 sq mi
Nearby Zip Codes
Zip codes closest to 10543 (Mamaroneck, NY) with distances:
Related Cities in New York
Explore zip codes in other New York cities:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 10543's $128,418. A way to compare Mamaroneck to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 10543 (Mamaroneck, NY). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
Explore New York
Popular "Near Me" Searches
Advertisement
People Also Ask
What zip code is Mamaroneck, New York?
Mamaroneck, New York uses zip code 10543.
What county is zip code 10543 in?
Zip code 10543 is located in Westchester County, New York.
What is the population of zip code 10543?
The population of zip code 10543 is 21,022 with a median age of 40.5.
Is 10543 in Mamaroneck, New York?
Yes, zip code 10543 is in Mamaroneck, Westchester County, New York. The area code is 914.
Frequently Asked Questions
What city is zip code 10543 in?
Zip code 10543 is in Mamaroneck, New York. It is part of Westchester County and uses the Eastern (EST/EDT) timezone.
What is zip code 10543?
Zip code 10543 is a U.S. postal code in Mamaroneck, New York (Westchester County). It has a population of 21,022 and covers 4.1 square miles.
What is the population of zip code 10543?
The population of zip code 10543 (Mamaroneck, NY) is 21,022 with a median age of 40.5. There are approximately 8,141 housing units in this area.
What is the median income in zip code 10543?
The median household income in zip code 10543 (Mamaroneck, NY) is $128,418 per year. The cost of living index is 225 (100 = national average).
What is the average home price in zip code 10543?
The median home value in zip code 10543 (Mamaroneck, NY) is $710,000. The cost of living index is 225 compared to the national average of 100.
What county is zip code 10543 in?
Zip code 10543 is located in Westchester County, New York. The primary city is Mamaroneck.
What is the area code for zip code 10543?
Zip code 10543 in Mamaroneck, NY uses area code 914. It is located in the Eastern (EST/EDT) timezone.
Is zip code 10543 a good place to live?
Zip code 10543 (Mamaroneck, NY) has a cost of living index of 225 (100 = national average), a median household income of $128,418, and median home values of $710,000. The median age is 40.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 10543?
The cost of living index for zip code 10543 (Mamaroneck, NY) is 225, where 100 represents the national average. This area is above the national average. Median home value: $710,000.
What schools serve zip code 10543?
Zip code 10543 in Mamaroneck, New York is served by the local school district of Westchester County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
People Also Searched For
Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.