Frankfort, New York Zip Codes
📍 Frankfort is in Herkimer County, New York with 1 zip code; the most populous is 13340.
Frankfort is a USPS city name in Herkimer County, New York with a Census population of approximately 7,322 across its ZIP codes. Herkimer County as a whole has 17 ZIP codes in this directory. Below you'll find every zip code serving Frankfort 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 Frankfort Zip Codes
Frankfort at a Glance
Frankfort has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 13340, has 7,322 residents.
Frankfort's ZIP has a household income of $69,928 and a home value of $143,900, a price-to-income ratio of 2.1, below the 2.9 New York ZIP median. Median rent across these ZIPs is $872 a month.
81% of households in Frankfort own their home (statewide ZIP median 80%). 22% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 6.5%, below the 9.9% statewide ZIP median. Overall density is about 121 residents per square mile across 60 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.
Frankfort Zip Code Map
Interactive map of Frankfort, New York zip codes. Click any marker for details.