- Midway
- Midway Gardens Mobile Park
- Milan
- Miles
- Mileta
- Mill A
- Mill Creek
- Mill Creek East
- Mill Plain
- Mill Village Mobile Home Park
- Mill Wheel Mobile Home Park
- Millburn
- Miller Island
- Miller River
- Miller's Villa Mobile Home Park
- Millers Mobile Home Park
- Milltown
- Milltown Island
- Millwood
- Milton
- Mima
- Mineral
- Minerva Beach Mobile Village Resort
- Minkler
- Minnehaha
- Minnick
- Minor Island
- Mint Grove
- Minter
- Mirror Lake