| Locality | Latitude | Longitude | Elevation | Postal Code |
|---|---|---|---|---|
| Metropolis (Round Knob) | 37.235706 | -88.715482 | m | 62960 |
| Metropolis (Metropolis) | 37.235706 | -88.715482 | m | 62960 |
| Metropolis (Bargerville) | 37.235706 | -88.715482 | m | 62960 |
| Joppa (Joppa) | 37.311762 | -88.792707 | m | 62953 |
| Brookport (Unionville) | 37.140078 | -88.58352 | m | 62910 |
| Brookport (Shady Grove) | 37.140078 | -88.58352 | m | 62910 |
| Brookport (New Liberty) | 37.140078 | -88.58352 | m | 62910 |
| Brookport (Hamletsburg) | 37.140078 | -88.58352 | m | 62910 |
| Brookport (Brookport) | 37.140078 | -88.58352 | m | 62910 |
| Belknap (Mermet) | 37.313172 | -88.879479 | m | 62908 |
| Belknap (Belknap) | 37.313172 | -88.879479 | m | 62908 |
Massac is an Administrative divisions in Illinois United States.
Illinois