Cortland, New York Zip Codes
📍 Cortland is in Cortland County, New York with 1 zip code; the most populous is 13045.
Cortland is a USPS city name in Cortland County, New York with a Census population of approximately 28,388 across its ZIP codes. Cortland County as a whole has 12 ZIP codes in this directory. Below you'll find every zip code serving Cortland 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 Cortland Zip Codes
Cortland at a Glance
Cortland has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 13045, has 28,388 residents.
Cortland's ZIP has a household income of $67,028 and a home value of $162,700, a price-to-income ratio of 2.4, below the 2.9 New York ZIP median. Median rent across these ZIPs is $905 a month.
58% of households in Cortland own their home (statewide ZIP median 80%). 30% of adults hold a bachelor's degree, in line with the 31% statewide median. The median poverty rate is 15.5%, far above the 9.9% statewide ZIP median. Overall density is about 263 residents per square mile across 108 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.
Cortland Zip Code Map
Interactive map of Cortland, New York zip codes. Click any marker for details.