Greenwich, New York Zip Codes
📍 Greenwich is in Washington County, New York with 1 zip code; the most populous is 12834.
Greenwich is a USPS city name in Washington County, New York with a Census population of approximately 6,137 across its ZIP codes. Washington County as a whole has 21 ZIP codes in this directory. Below you'll find every zip code serving Greenwich 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 Greenwich Zip Codes
Greenwich at a Glance
Greenwich has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 12834, has 6,137 residents.
Greenwich's ZIP has a household income of $82,931 and a home value of $234,900, a price-to-income ratio of 2.8, in line with the 2.9 New York ZIP median. Median rent across these ZIPs is $1,154 a month.
82% of households in Greenwich own their home (statewide ZIP median 80%). 29% of adults hold a bachelor's degree, in line with the 31% statewide median. The median poverty rate is 4.9%, far below the 9.9% statewide ZIP median. Overall density is about 73 residents per square mile across 85 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.
Greenwich Zip Code Map
Interactive map of Greenwich, New York zip codes. Click any marker for details.