Armonk, New York Zip Codes
📍 Armonk is in Westchester County, New York with 1 zip code; the most populous is 10504.
Armonk is a USPS city name in Westchester County, New York with a Census population of approximately 7,853 across its ZIP codes. Westchester County as a whole has 92 ZIP codes in this directory. Below you'll find every zip code serving Armonk with population, income and home value, a map, and the city's affordability profile.
Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).
All Armonk Zip Codes
Armonk at a Glance
Armonk has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 10504, has 7,853 residents.
Armonk's ZIP has a household income of $247,433 and a home value of $1,150,700, a price-to-income ratio of 4.7, far above the 2.9 New York ZIP median. Median rent across these ZIPs is $1,910 a month.
95% of households in Armonk own their home (statewide ZIP median 80%). 81% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 4.2%, far below the 9.9% statewide ZIP median. Overall density is about 488 residents per square mile across 16 square miles of ZIP land area.
Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 New York ZIP Code Affordability Report.
Armonk Zip Code Map
Interactive map of Armonk, New York zip codes. Click any marker for details.