| City: | Ardsley On Hudson, New York |
| City Alias: | Ardsley Hdsn |
| County: | Westchester County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:34:15 PM |
| Population: | 121 [See All] |
| Area Code: | 914 |
| Classification: | PO Box |
| Coordinates: | 41.0255, -73.8751 |
| Land Area: | 0.015 sq mi |
| Quick Link: |
Ardsley on Hudson is a tiny riverside enclave in Westchester County, New York, with just 121 residents and 84 households occupying 0.09 square miles along the Hudson River. This is a PO Box Only Zone, which means there's no alternative mail delivery available. The post office maintains 89 PO Boxes for the 84 households, resulting in a 1.06 adoption rate that shows the facility serves both local residents and nearby areas.
The community is overwhelmingly composed of older adults. Median age is 66.8 years, and there's only one resident under 18 years old. This isn't a retirement community in the institutional sense, but rather an affluent small enclave where older residents predominate. With a median household income of $250,000 and a median home value of $677,600, this is one of the wealthier small communities in Westchester County.
Despite the PO Box classification, rural carrier routes serve most addresses. Of the 98 ZIP+4 records, 88 are delivered via rural routes (2 distinct routes) to a single street: W Ardsley Avenue. The street includes both apartments and offices, with 88 delivery records concentrated on this one thoroughfare. Only 9 records are traditional PO Boxes.
Nearly all residents are college-educated. An exceptional 93.7% of adults 25 and over hold bachelor's degrees or higher, one of the highest rates in New York State. The population is 88% white, with 43% Hispanic or Latino heritage (52 of 121 residents). Almost all housing is owner-occupied (83 of 84 households), with just one renter-occupied unit. The area has 5 business establishments employing 92 workers, suggesting more employment than residents.
Acceptable city names:
Format for PO Box mail:
PO Box [Number]
Ardsley on Hudson, NY 10503Format for rural route delivery:
[Number] W Ardsley Ave
Ardsley on Hudson, NY 10503Virtually all addresses are on W Ardsley Avenue, which contains apartments and offices.
ZIP Code 10503 has 121 residents and 84 households (average 1.44 persons per household). The median age is 66.8 years, significantly older than the state (39.0) and significantly older than the nation (38.8). The gender split is 42.1% male and 57.9% female, which is lower than the national male share (49.1%), making this a female-majority area. Largest groups are White (88.4%, much higher than the state average of 55.2% and well above the national average of 61.6%) and Asian (7.4%, slightly lower than the state average of 9.6%); Hispanic or Latino residents make up 0.0%, which is much lower than the state average (19.5%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 121Source: Census DHC |
| 2024 ACS Population Estimate: | 132Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 8,066.7 people per sq mile |
| Average Income: | $243,036Source: Census ACS |
| Households: | 84Source: Census DHC |
| Average House Value: | $868,600Source: Census ACS |
| Persons Per Household: | 1.44Source: Census DHC |
| Average Family Size: | 2.16Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 222 | 263 | 158 | 172 | 168 | 137 | 137 | 173 | 153 | 106 | 71 | 94 | 127 | 132 |
| Decennial Census | 108 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 121 | -- | -- | -- | -- |
Median Age: 66.8
Male Median Age: 42.5
Female Median Age: 72.5
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 1 | 0 | 0 | 0 | 4 | 0 | 7 | 9 | 6 | 2 | 0 | 0 | 6 | 11 | 0 | 1 | 4 | 0 |
| Female | 0 | 1 | 0 | 3 | 1 | 2 | 0 | 3 | 1 | 4 | 0 | 0 | 3 | 15 | 7 | 8 | 2 | 20 |
| Total | 1 | 1 | 0 | 3 | 5 | 2 | 7 | 12 | 7 | 6 | 0 | 0 | 9 | 26 | 7 | 9 | 6 | 20 |
| White: | 107 | 89.92% |
| Black: | 3 | 2.52% |
| Hispanic:* | 0 | 0% |
| Asian: | 9 | 7.56% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 119 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 51 | 42.15% | 42.5 years |
| Females: | 70 | 57.85% | 72.5 years |
| Total: | 121 | 100% | 66.8 years |
| Native, born in the United States: | 125 | 94.70% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 7 | 5.30% |
| Foreign born, not a U.S. citizen: | 0 | 5.30% |
| Total Population: | 132 | 100% |
| Total Native Population: | 125 | 94.70% |
| Total Foreign-born Population: | 7 | 5.30% |
In 2024, the Median household income is $243,036, which is markedly greater than the national median ($78,538), is up $12,411 (5.4%) since 2011 and above its 2019 pre-pandemic level by $162,689. Family households earn a median of $250,001 versus $0 for nonfamily households (a difference of $250,001). By gender, male median income is $0 and female is $0, which is considerably lower than the national female median ($53,445), with a current gap of $0 that has widened from 2011 to 2024. The labor-force participation rate is 49.2%, which is far less than the national rate (63.5%). The unemployment rate is 0.0%, which is markedly below the national rate (5.2%). The largest occupation group is Management (89.2%).
Explore More: Income Over Time Household Income Employment Status By Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $230,625 | $214,327 | $135,192 | $139,911 | $0 | $0 | $0 | $0 | $80,347 | $0 | $86,964 | $0 | $250,001 | $243,036 |
| Median Family Income | $231,307 | $235,469 | $215,288 | $223,846 | $242,574 | $226,250 | $0 | $0 | $0 | $0 | $0 | $0 | $250,001 | $250,001 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $69,145 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $178,068 | $180,234 | $0 | $203,482 | $0 | $242,604 | $250,001 | $250,001 | $0 | $142,206 | $0 | $0 | $0 | $0 |
| Median Female Income | $250,001 | $250,001 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 65 | 49.24% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 67 | 50.76% |
| Total: | 132 | 100% |
| Management, business, science, and arts: | 58 | 89.23% |
| Service: | 0 | 0.00% |
| Sales and Office: | 7 | 10.77% |
| Natural resources, construction, and maintenance: | 0 | 0.00% |
| Production, transportation, and material moving: | 0 | 0.00% |
| Total Civilian Employed Population: | 65 | 100% |
In 2024, the median home value is $868,600, which is far above the national median ($303,400), is up $246,300 (39.58%) since 2011 and above its 2019 pre-pandemic level by $471,200. The median gross rent is $0, which is well under the national median ($1,348), is down $2,001 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. Of occupied housing, owners make up 100.00% (48.00% with a mortgage, 52.00% free-and-clear) and renters 0.00% - making this ZIP Code under national rental averages. The vacancy rate is 53.70%, which is much higher than the national rate (10.43%).
Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $622,300 | $625,000 | $579,300 | $618,100 | $575,700 | $530,600 | $525,900 | $573,500 | $397,400 | $510,700 | $576,400 | $591,900 | $677,600 | $868,600 |
| Less than $500: | 0 | 0% |
| $500 to $999: | 0 | 0% |
| $1,000 to $1,499: | 0 | 0% |
| $1,500 to $1,999: | 0 | 0% |
| $2,000 to $2,499: | 0 | 0% |
| $2,500 to $2,999: | 0 | 0% |
| $3,000 or more: | 0 | 0% |
| No Rent: | 0 | 0% |
| Total: | 0 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $2,001 | $2,001 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 36 | 48.00% |
| Owner Occupied (free and clear, no mortgage): | 39 | 52.00% |
| Renter Occupied: | 0 | 0.00% |
| Total Occupied Housing Units: | 75 | 100% |
| Occupied Housing Units: | 75 | 46.30% |
| Vacant Housing Units (not graphed): | 87 | 53.70% |
| Total Housing Units: | 162 | 100% |
| Single-Family Units: | 0 | 0.00% |
| Multi-Family Units: | 162 | 100.00% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 162 | 100% |
In 2024, 94.70% of adults (25+) have a bachelor's degree or higher, which is far higher than the national rate (35.00%). High school or higher is 100.00%, which is comparable to the national rate (89.40%). The uninsured rate is 0.00%, which is comparable to the national rate (8.60%). Private coverage is 87.90%, which is well above the national rate (67.30%). Public coverage is 77.30%, which is far higher than the national rate (36.30%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.70%), down 11.80 percentage points since 2011. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Insufficient data for school enrollment.
Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 0 | 0.00% |
| High school graduate (includes equivalency): | 0 | 0.00% |
| Some college, no degree: | 0 | 0.00% |
| Associate's degree: | 7 | 5.30% |
| Bachelor's degree: | 0 | 0.00% |
| Graduate or professional degree: | 125 | 94.70% |
| Total: | 132 | 100% |
| High school or higher: | 132 | 100.00% |
| Bachelor's degree or higher: | 125 | 94.70% |
| Private Insurance: | 116 | 53.21% |
| Public Insurance: | 102 | 46.79% |
| No Insurance: | 0 | 0.00% |
| Total: | 218 | 100% |
| Has Health Insurance: | 218 | 100.00% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 11.8% | 11.8% | 22.6% | 18.2% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0% |
| Kindergarten: | 0 | 0% |
| Elementary school (grades 1-8): | 0 | 0% |
| High school (grades 9-12): | 0 | 0% |
| College or graduate school: | 0 | 0% |
| Total: | 0 | 100% |
| Early Childhood: | 0 | 0% |
| K-12 (Primary & Secondary School): | 0 | 0% |
ZIP Code 10503 supports both business and residential activity. According to the Business Census (2024), there are 5 business establishments, employing about 90 people with an annual payroll of $5,002,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 178Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 5Source: CBP |
| 1st Quarter Payroll: | $883,000Source: CBP |
| Annual Payroll: | $5,002,000Source: CBP |
| # of Employees: | 90Source: CBP |
ZIP Code 10503 is located in Westchester County, New York, within the New York-Newark-Jersey City, NY-NJ Metropolitan Statistical Area (CBSA 35620) and New York's 16th Congressional District. This Metro area has a population of 18,897,109 people, about 0.00% of whom live in ZIP Code 10503, and is subdivided into the New York-Jersey City-White Plains, NY-NJ division. It covers 0.015 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | New York-Newark-Jersey City, NY-NJSource: Census |
| CBSA Number: | 35620Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | New York-Jersey City-White Plains, NY-NJ (CBSA Div 35614)Source: Census |
| CBSA Population: | 18,897,109Source: Census |
| MSA: | New York-Northern New Jersey-Long Island, NY-NJ-CT-PASource: Census |
| Land Area: | 0.015 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 16Source: USPS |
| Congressional Land Area: | 78.37 sq miSource: Census |
| PMSA: | New York, NY PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 10503 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.