Martinsburg, New York Zip Codes
📍 Martinsburg is in Lewis County, New York with 1 zip code; the most populous is 13404.
Martinsburg is a USPS city name in Lewis County, New York with a Census population of approximately 162 across its ZIP codes. Lewis County as a whole has 17 ZIP codes in this directory. Below you'll find every zip code serving Martinsburg 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 Martinsburg Zip Codes
Martinsburg at a Glance
Martinsburg has 1 ZIP code in this directory: 1 standard delivery ZIP.
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.
Martinsburg Zip Code Map
Interactive map of Martinsburg, New York zip codes. Click any marker for details.