17 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 75092 | Sherman | 26,588 |
| 75090 | Sherman | 25,788 |
| 75020 | Denison | 24,486 |
| 76273 | Whitesboro | 10,553 |
| 75495 | Van Alstyne | 9,658 |
| 75021 | Denison | 8,925 |
| 75076 | Pottsboro | 8,536 |
| 75459 | Howe | 5,395 |
| 75491 | Whitewright | 5,094 |
| 75058 | Gunter | 3,801 |
| 75414 | Bells | 3,284 |
| 76233 | Collinsville | 3,256 |
| 76271 | Tioga | 1,961 |
| 76245 | Gordonville | 1,847 |
| 76264 | Sadler | 1,143 |
| 75489 | Tom Bean | 832 |
| 76268 | Southmayd | 125 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 17 ZCTAs in Grayson County, Texas (US Census).