Dexter, New York Zip Codes
📍 Dexter is in Jefferson County, New York with 1 zip code; the most populous is 13634.
Dexter is a USPS city name in Jefferson County, New York with a Census population of approximately 3,866 across its ZIP codes. Jefferson County as a whole has 42 ZIP codes in this directory. Below you'll find every zip code serving Dexter 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 Dexter Zip Codes
Dexter at a Glance
Dexter has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 13634, has 3,866 residents.
Dexter's ZIP has a household income of $90,461 and a home value of $214,800, a price-to-income ratio of 2.4, below the 2.9 New York ZIP median. Median rent across these ZIPs is $731 a month.
82% of households in Dexter own their home (statewide ZIP median 80%). 25% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 7.7%, below the 9.9% statewide ZIP median. Overall density is about 80 residents per square mile across 48 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.
Dexter Zip Code Map
Interactive map of Dexter, New York zip codes. Click any marker for details.