| Official Name: | Fullerton, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Fullerton |
| Pushpin Label Position: | top |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | DeWitt |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 748 |
| Coordinates: | 40.2103°N -88.7444°W |
| Area Code: | 217 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 422721 |
Fullerton is an unincorporated community in DeWitt County, Illinois, United States. Fullerton is located at the junction of Illinois Routes 48 and 54, 3miles northeast of DeWitt.