62951 Zip Code
| City: | Johnston City |
| State: | IL |
| County: | Williamson County |
| Area Codes: | 618 |
| Latitude: | 37.82 |
| Longitude: | -88.92 |
| Time Zone: | America/Chicago |
| Population in 2010: | 5,352 |
| School District: | Herrin Community Unit School District 4 |
| District Code: | 18810 |