Towns
| State | City/Town | Town Title |
|---|---|---|
| Illinois | Mundelein | Mundelein, IL |
| Illinois | Murdock | Murdock, IL |
| Illinois | Murphysboro | Murphysboro, IL |
| Illinois | Murrayville | Murrayville, IL |
| Illinois | Nachusa | Nachusa, IL |
| Illinois | Naperville | Naperville, IL |
| Illinois | Nashville | Nashville, IL |
| Illinois | Nason | Nason, IL |
| Illinois | National Stock Yards | National Stock Yards, IL |
| Illinois | Nauvoo | Nauvoo, IL |
| Illinois | Nebo | Nebo, IL |
| Illinois | Nelson | Nelson, IL |
| Illinois | Neoga | Neoga, IL |
| Illinois | Neponset | Neponset, IL |
| Illinois | New Athens | New Athens, IL |
| Illinois | New Baden | New Baden, IL |
| Illinois | New Bedford | New Bedford, IL |
| Illinois | New Berlin | New Berlin, IL |
| Illinois | New Boston | New Boston, IL |
| Illinois | New Burnside | New Burnside, IL |
| Illinois | New Canton | New Canton, IL |
| Illinois | New Douglas | New Douglas, IL |
| Illinois | New Haven | New Haven, IL |
| Illinois | New Holland | New Holland, IL |
| Illinois | New Lenox | New Lenox, IL |