Armonk, NY 10504 ZIP Code Profile

Related Place Profiles:
Armonk, NY | North Castle, NY

ZIP Code 10504: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Armonk, NY 10504

Acceptable Alternative
North Castle, NY 10504

  • ZIP Code Type: STANDARD
  • County: Westchester County
  • Centroid: Latitude 41.14, Longitude -73.7
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 492
  • PO Box Addresses: 128
  • Residential Addresses: 2,743
    • Multi-Family Addresses: 118
    • Single Family Addresses: 2,625

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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10504 ZIP Code Map

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Armonk, NY 10504 Data & Demographics (As of July 1, 2017)


Total Population 8,501
Daytime Population: Workers 6,642
Daytime Population: Residents 4,634
Total Daytime Population (TDP) 11,276
Ratio TDP/Total Population1 1.33
Population in Households 8,495
Population in Familes 7,897
Population in Group Qrtrs 6
Population Density2 510
Diversity Index3 26


Median Household Income $183,694
Average Household Income $256,902
Per Capita Income $83,279


Total Housing Units 2,890 (100%)
Owner Occupied HU 2,527 (87.4%)
Renter Occupied HU 228 ( 7.9%)
Vacant Housing Units 135 ( 4.7%)
Median Home Value $1,000,001
Average Home Value $1,081,450


Total Households 2,755
Average Household Size 3.08
Family Households 2,346
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.76% 0.63%
Households 0.66% 0.56%
Families 0.58% 0.51%
Median Household Income   0.57%
Per Capita Income   1.32%

Armonk, NY 10504 - Peer Comparisons by Rank and Percentile

The table below compares 10504 to the other 1,745 ZIP Codes in New York by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 570 67th
Population Density # 658 62nd
Diversity Index # 771 56th
Median Household Income # 18 99th
Per Capita Income # 47 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE New York Census Data Comparison Tool.

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