20 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 61520 | Canton | 16,176 |
| 61542 | Lewistown | 3,407 |
| 61531 | Farmington | 3,144 |
| 61427 | Cuba | 2,095 |
| 61415 | Avon | 1,684 |
| 61501 | Astoria | 1,646 |
| 61544 | London Mills | 872 |
| 61441 | Ipava | 815 |
| 61484 | Vermont | 737 |
| 61432 | Fairview | 686 |
| 61563 | Saint David | 556 |
| 61482 | Table Grove | 520 |
| 61477 | Smithfield | 499 |
| 61524 | Dunfermline | 358 |
| 61459 | Marietta | 348 |
| 61431 | Ellisville | 315 |
| 61553 | Norris | 259 |
| 61519 | Bryant | 249 |
| 61543 | Liverpool | 111 |
| 61433 | Fiatt | 22 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 20 ZCTAs in Fulton County, Illinois (US Census).