- Manning (Population: 4,025)
- Marion (Population: 7,042)
- Mauldin (Population: 15,224)
- Mayesville (Population: 1,001)
- Mayo (Population: 1,842)
- McColl (Population: 2,498)
- McCormick (Population: 1,489)
- Meggett (Population: 1,230)
- Monarch Mill (Population: 1,930)
- Moncks Corner (Population: 5,952)
- Mount Pleasant (Population: 47,609)
- Mullins (Population: 5,029)
- Murphys Estates (Population: 1,518)
- Murrells Inlet (Population: 5,519)
- Myrtle Beach (Population: 22,759)
