ZIP CodesZIP codes in Cortland County, New York
Cortland County, New York has 12 ZIP codes in this list, from 13040 to 13863. They cover 12 places, among them Cincinnatus, Cortland, East Homer and Homer.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 13040 | Cincinnatus | 99.8 | 42.538, -75.903 |
| 13045 | Cortland | 108 | 42.595, -76.186 |
| 13056 | East Homer | no area | 42.677, -76.105 |
| 13077 | Homer | 68.6 | 42.673, -76.188 |
| 13087 | Little York | 0.9 | 42.707, -76.156 |
| 13101 | Mc Graw | 38.4 | 42.595, -76.082 |
| 13141 | Preble | 14.4 | 42.795, -76.214 |
| 13158 | Truxton | 59.0 | 42.709, -76.019 |
| 13738 | Blodgett Mills | 0.2 | 42.567, -76.124 |
| 13784 | Harford | 1.0 | 42.426, -76.227 |
| 13803 | Marathon | 93.5 | 42.453, -76.040 |
| 13863 | Willet | 12.3 | 42.452, -75.901 |
The ZIP code areas of Cortland County add up to about 496 square miles of land (1,285 sq km) as the Census Bureau draws them. The largest is 13045 (Cortland), with 108 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Cincinnatus, NY 13040.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.