Watertown, New York Zip Codes
📍 Watertown is in Jefferson County, New York with 2 zip codes; the most populous is 13601.
Watertown is a USPS city name in Jefferson County, New York with a Census population of approximately 51,382 across its ZIP codes. Jefferson County as a whole has 42 ZIP codes in this directory. Below you'll find every zip code serving Watertown 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 Watertown Zip Codes
Watertown at a Glance
Watertown has 2 ZIP codes in this directory: 2 standard delivery ZIPs. Its one ZIP with published Census housing data, 13601, has 51,382 residents.
Watertown's ZIP has a household income of $57,503 and a home value of $170,100, a price-to-income ratio of 3.0, in line with the 2.9 New York ZIP median. Median rent across these ZIPs is $974 a month.
50% of households in Watertown 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 17.7%, far above the 9.9% statewide ZIP median. Overall density is about 351 residents per square mile across 146 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.
Watertown Zip Code Map
Interactive map of Watertown, New York zip codes. Click any marker for details.