Founded in 1823, Fulton County is one of 102 counties in the state of Illinois. Historically, Fulton County was formed from Pike County. The city of Lewistown is the county seat. With FIPS code of 57, Fulton County has a population of 33,197 and area of 865 square miles (2,240 km2).
List of all cities in Fulton County, IL alphabetically
| City/Town | Postal Code | Area Code |
| Astoria, IL | 61501 | 309 |
| Avon, IL | 61415 | 309 |
| Banner, IL | 61520 | 309 |
| Bernadotte, IL | 61441 | 309 |
| Blyton, IL | 61477 | 309 |
| Breeds, IL | 61520 | 309 |
| Brereton, IL | 61520 | 309 |
| Bryant, IL | 61519 | 309 |
| Canton, IL | 61520 | 309 |
| Check Row, IL | 61415 | 309 |
| Cuba, IL | 61427 | 309 |
| Dunfermline, IL | 61524 | 309 |
| Ellisville, IL | 61431 | 309 |
| Fairview, IL | 61432 | 309 |
| Farmington, IL | 61531 | 309 |
| Fiatt, IL | 61433 | 309 |
| Greenbush, IL | 61415 | 309 |
| Ipava, IL | 61441 | 309 |
| Joshua, IL | 61432 | 309 |
| Lewistown, IL | 61542 | 309 |
| Little America, IL | 61542 | 309 |
| Liverpool, IL | 61543 | 309 |
| London Mills, IL | 61544 | 309 |
| Marietta, IL | 61459 | 309 |
| Middlegrove, IL | 61531 | 309 |
| Monterey, IL | 61520 | 309 |
| New Philadelphia, IL | 61459 | 309 |
| Norris, IL | 61553 | 309 |
| Rapatee, IL | 61544 | 309 |
| Saint David, IL | 61563 | 309 |
| Seville, IL | 61477 | 309 |
| Smithfield, IL | 61477 | 309 |
| Summum, IL | 61501 | 309 |
| Table Grove, IL | 61482 | 309 |
| Vermont, IL | 61484 | 309 |