| Williamson County | Public Safety | 37.73338 | -88.9334 | 15 |
| EMS Agencies and Hospitals | Williamson County EMS | 37.73338 | -88.9334 | 15 |
| EMS Agencies and Hospitals | AMR Abbott EMS (Marion) | 37.73338 | -88.9334 | 15 |
| EMS Agencies and Hospitals | United Medical Response Division 4 (Marion/Herrin) | 37.73338 | -88.9334 | 15 |
| EMS Agencies and Hospitals | Heartland Regional Medical Center (Marion) | 37.73061 | -88.93313 | 1 |
| EMS Agencies and Hospitals | SIH Herrin Hospital | 37.801 | -89.026 | 0.05 |
| Municipalities and Districts | Townships and Water Districts | 37.73338 | -88.9334 | 15 |
| Municipalities and Districts | Williamson County Fire Protection District | 37.73338 | -88.9334 | 15 |
| Municipalities and Districts | Cambria | 37.78144 | -89.11925 | 0.5 |
| Municipalities and Districts | Carterville | 37.75918 | -89.0823 | 1.65 |
| Municipalities and Districts | Crainville | 37.75199 | -89.06785 | 0.5 |
| Municipalities and Districts | Creal Springs | 37.61949 | -88.83673 | 0.5 |
| Municipalities and Districts | Energy | 37.77394 | -89.02646 | 0.5 |
| Municipalities and Districts | Herrin | 37.80311 | -89.02757 | 1.4 |
| Municipalities and Districts | Hurst | 37.83311 | -89.14286 | 0.6 |
| Municipalities and Districts | Johnston City | 37.82061 | -88.92757 | 1.5 |
| Municipalities and Districts | Lake Egypt Fire Protection District (Marion) | 37.65121 | -88.93639 | 4.5 |
| Municipalities and Districts | Marion | 37.73061 | -88.93313 | 2 |
| Municipalities and Districts | Pittsburg | 37.77699 | -88.84951 | 0.5 |
| Schools and Colleges | Carterville Community Unit School District 5 | 37.76005 | -89.0773 | 2 |
| Schools and Colleges | Herrin Schools | 37.80311 | -89.02757 | 2 |
| Schools and Colleges | Johnston City Community Unit School District | 37.82061 | -88.92757 | 1 |
| Schools and Colleges | Marion CUSD2 | 37.73061 | -88.93313 | 5 |
| Schools and Colleges | Williamson Superindent County Schools | 37.73338 | -88.9334 | 15 |
| Schools and Colleges | John A. Logan Community College (Carterville) | 37.7488 | -89.09114 | 0.5 |
| Federal Government | Federal Bureau of Prisons - Marion | 37.66313 | -88.98394 | 1.5 |
| Federal Government | U.S. Army Corps of Engineers - Crab Orchard Lake | 37.70773 | -89.07715 | 5 |
| Federal Government | U.S. Fish and Wildlife Crab Orchard Wildlife Refuge | 37.71465 | -89.0859 | 2.13 |
| Federal Government | VA Medical Center (Marion) | 37.72443 | -88.95501 | 0.25 |
| Amateur Radio | Miscellaneous | 37.73338 | -88.9334 | 15 |
