- Miami Beach (Fla.)8
- Miami-Dade County (Fla.)1
- Michigan.1
- Middle East1
- Middlebrook, Somerset County, New Jersey, United States3
- Midlands3,276
- Midlands, Pee Dee2
- Mildenhall (Suffolk, England)1
- Mill Prison, Plymouth, England2
- Milledgeville (Ga.)2
- Millford Plantation, Sumter County, South Carolina, United States6
- Millvile, Spartanburg County, South Carolina, United States2
- Milwaukee (Wis.)1
- Minneapolis (Minn.)1
- Mississippi4
- Missouri1
- Mobile Bay (Ala.)1
- Mobile, Alabama, United States12
- Mobile, Mobile County, Alabama, United States2
- Moncks Corner (S.C.)1