Postal Codes

10504 ZIP Code

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ZIP code 10504 covers Armonk, New York, with a population of about 7,853 and a median household income of $247,433.

Population
7,853487 per square mile
Median age
42.94.2 points above the US average
Median household income
$247,4332.9× the New York median
Poverty rate
4.2%8.2 points below the US average
Typical home value
$1,746,645up 26.3% in five years
Degree or higher
81.1%46.1 points above the US average
Homeownership
94.9%29.9 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
459

Where 10504 is

Armonk, New York — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population7,853
Median age42.9
Family households87.8%
Born outside the US13.9%
Speaks a language other than English at home19.6%
White (non-Hispanic)75.5%
Black (non-Hispanic)1.9%
Asian (non-Hispanic)7.6%
Hispanic or Latino9.2%
Veterans1.6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$247,433
Income per person$130,284
Poverty rate4.2%
Households on SNAP or cash assistance2.7%

Household income distribution

Under $10k2.4%
$10–15k0.0%
$15–20k0.0%
$20–25k0.2%
$25–30k0.0%
$30–35k0.0%
$35–40k1.9%
$40–45k2.8%
$45–50k1.0%
$50–60k0.7%
$60–75k2.9%
$75–100k5.4%
$100–125k6.2%
$125–150k5.2%
$150–200k7.8%
$200k or more63.7%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed3,890
Mean adjusted gross income$546,088
Returns declaring $200,000 or more46.8%
Returns, under $25k18.5%
Returns, $25k–$50k7.7%
Returns, $50k–$75k6.7%
Returns, $75k–$100k5.7%
Returns, $100k–$200k14.7%
Returns, $200k or more46.8%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$1,150,700
Owner-occupied94.9%
Vacant homes4.7%
Median year built1972

What the homes are

Detached house88.4%
Attached house5.1%
2 to 4 units1.1%
5 to 19 units2.6%
20 or more units2.4%
Mobile home0.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$1,746,645as of 2026-07
Typical home value, 1 yearup 5.9%
Typical home value, 5 yearsup 26.3%
Typical home value, 10 yearsup 37.5%
Typical home value since 2000
200020132026$1,746,645$773,173

$773,173 in 2000 to $1,746,645 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.8%
Bachelor's degree or higher81.1%
High school diploma or higher97.4%
Works from home27.2%
Drives to work alone54.1%
Takes public transport14.9%
Commutes 45 minutes or more37.3%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity20.9% 12.5 pts below the national average of 33.4%
Diagnosed diabetes7.5% 4.5 pts below the national average of 12%
Currently smokes5.9% 7.3 pts below the national average of 13.2%
High blood pressure26.4% 7.7 pts below the national average of 34.1%
Fair or poor general health9% 11.3 pts below the national average of 20.3%
No health insurance (18–64)2.8% 8.5 pts below the national average of 11.3%
Depression15.9% 6 pts below the national average of 21.9%
No leisure-time physical activity14.2% 11.2 pts below the national average of 25.4%
Arthritis23.7% 1.4 pts below the national average of 25.1%
Binge drinking16.5% 0.5 pts above the national average of 16%
Taking blood pressure medication77.5% 2.8 pts above the national average of 74.7%
Cancer (non-skin)10.1% 2.4 pts above the national average of 7.7%
Current asthma8.8% 1.6 pts below the national average of 10.4%
Coronary heart disease4.8% 1.4 pts below the national average of 6.2%
Routine check-up in past year81.8% 5.1 pts above the national average of 76.7%
Cholesterol screening93% 7.1 pts above the national average of 85.9%
Cognitive disability7.3% 7.5 pts below the national average of 14.8%
Colorectal screening71.5% 7.2 pts above the national average of 64.3%
COPD3.6% 3 pts below the national average of 6.6%
Visited a dentist78.9% 17.6 pts above the national average of 61.3%
Any disability17.4% 13.3 pts below the national average of 30.7%
Lacks emotional support16.8% 8 pts below the national average of 24.8%
Food insecurity4.9% 12.2 pts below the national average of 17.1%
Received food stamps3.5% 10.8 pts below the national average of 14.3%
Hearing disability4.8% 1.9 pts below the national average of 6.7%
High cholesterol36.6% same as the national average of 36.2%
Housing insecurity5.2% 8.6 pts below the national average of 13.8%
Independent living disability4.2% 4.2 pts below the national average of 8.4%
Lacks transport3.4% 5.8 pts below the national average of 9.2%
Loneliness26.9% 7.5 pts below the national average of 34.4%
Mammography use84.3% 8.4 pts above the national average of 75.9%
Poor mental health (14+ days)11.3% 5.5 pts below the national average of 16.8%
Mobility disability7.8% 6.2 pts below the national average of 14%
Poor physical health (14+ days)8.6% 4.9 pts below the national average of 13.5%
Self-care disability1.9% 2.1 pts below the national average of 4%
Utility shut-off threat3.2% 5.6 pts below the national average of 8.8%
Sleeps under 7 hours30% 6.4 pts below the national average of 36.4%
Stroke2.3% 1.1 pts below the national average of 3.4%
All natural teeth lost3.9% 9.1 pts below the national average of 13%
Vision disability2.5% 3.1 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments459
People employed10,417
Annual payroll$1,605,736,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 50.3% of US census tracts
FEMA ratingRelatively Low
Expected annual loss64.7 out of 100
Community resilience68.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Landslide95.2Relatively Moderate at its worst in this ZIP code
Hurricane79.5Relatively Moderate at its worst in this ZIP code
River flooding77.2Relatively High at its worst in this ZIP code
Strong wind69.7Relatively Moderate at its worst in this ZIP code
Earthquake69.3Relatively Low at its worst in this ZIP code
Winter weather68.9Relatively Moderate at its worst in this ZIP code
Wildfire64.7Very Low at its worst in this ZIP code
Ice storm55.9Relatively Low at its worst in this ZIP code
Cold wave47Relatively Moderate at its worst in this ZIP code
Lightning46Relatively Low at its worst in this ZIP code
Heat wave38.7Relatively Low at its worst in this ZIP code
Tornado30.7Relatively Low at its worst in this ZIP code
Hail16.4Very Low at its worst in this ZIP code
Compared with New York and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPNew YorkUnited States
Median household income$247,433$84,578$78,538
Income per person$130,284$49,520$43,289
Poverty rate4.2%13.7%12.4%
Median home value$1,150,700$403,000$303,400
Median gross rent$1,576$1,348
Homeownership94.9%54.3%65%
Bachelor's degree or higher81.1%39.6%35%
Unemployment rate2.8%6.2%5.2%
Works from home27.2%13.3%13.5%
Born outside the US13.9%22.6%13.9%
Median age42.939.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationWESTCHESTER CO AP, NY US7.7 km away
Rain in a year48 in

Average high and low by month

January37.3°F / 22.4°F3.2 in rain
February40.1°F / 23.7°F2.53 in rain
March47.6°F / 30.5°F4.11 in rain
April59.2°F / 40.1°F4.2 in rain
May69.2°F / 49.8°F3.94 in rain
June78°F / 59.1°F4.25 in rain
July83.2°F / 64.9°F4.07 in rain
August81.2°F / 63.6°F4.36 in rain
September74.2°F / 56.7°F4.94 in rain
October63°F / 45.5°F4.33 in rain
November52.2°F / 36.2°F3.64 in rain
December42.3°F / 28°F4.18 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket100% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Byram Hills Central School District94.8% of this ZIP code's land area
Mount Pleasant Central School District4.3% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability9more vulnerable than 9% of US census tracts
Socioeconomic status2more vulnerable than 2% of US census tracts
Household characteristics18more vulnerable than 18% of US census tracts
Racial and ethnic minority status36more vulnerable than 36% of US census tracts
Housing type and transport32more vulnerable than 32% of US census tracts
Walkability8.3 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

10545 Maryknoll, NY3.3 km away
10610 White Plains, NY3.3 km away
10594 Thornwood, NY6.4 km away
10570 Pleasantville, NY7 km away
10514 Chappaqua, NY7 km away
10549 Mount Kisco, NY8 km away
10506 Bedford, NY8.2 km away
10595 Valhalla, NY8.5 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Westchester County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area16.13 sq mi
Water area1.8 sq mi
Population density487 people per sq mi
Latitude, longitude41.1360, -73.7009

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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