Cortland County, New York ZIP Codes

11 ZIP Codes

Zip Code
City
Population ↓
13045Cortland28,361
13077Homer6,405
13803Marathon4,273
13040Cincinnatus2,595
13101McGraw2,358
13158Truxton1,217
13141Preble652
13784Harford382
13863Willet382
13087Little York116
13738Blodgett Mills20

Overview of ZIP Codes in Cortland County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
11
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 11 ZCTAs in Cortland County, New York (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

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