Places beginning with MI in Illinois, United States
- Michael
- Michigan Beach
- Mid City (historical)
- Middlebury
- Middlecreek
- Middle Creek
- Middlefork, Township of
- Middlegrove
- Middlepoint
- Middleport, Township of
- Middlesworth
- Middleton
- Middletown
- Midland City
- Midlothian
- Mid-North District (subdivision)
- Midway
- Midway
- Midway
- Midway
- Midway
- Midway (historical)
- Milam, Township of
- Milan
- Milan
- Milan, Township of
- Mildred
- Miles Station
- Milford
- Milford, Township of
- Milks Grove, Township of
- Milla
- Millbrig (historical)
- Millbrook
- Millbrook, Township of
- Millburn
- Mill Creek
- Mill Creek Election Precinct
- Milledgeville
- Miller
- Miller City
- Miller Election Precinct
- Millersburg
- Millersburg, Township of
- Millersville
- Miller, Township of
- Millhurst
- Millington
- Millsdale
- Mill Shoals
- Mill Shoals, Township of
- Mills Prairie (historical)
- Millstadt
- Millstadt Junction
- Millstadt, Township of
- Mills, Township of
- Millville
- Millville
- Milmine
- Milne
- Milo
- Milo, Township of
- Milroy
- Milton
- Milton
- Milton, Township of
- Mindale
- Mindale
- Mineral
- Mineral City (historical)
- Mineral Springs (historical)
- Mineral, Township of
- Minier
- Minonk
- Minonk, Township of
- Minooka
- Mira
- Missal
- Missionfield
- Mission, Township of
- Mississippi, Township of
- Missouri, Township of
- Mitchell
- Mitchell
- Mitchells Subdivision
- Mitchellsville
- Mitchie