Middletown, Maryland
Area codes 227, 240, 301 · Population: 4,136
Eastern (ET)
Maryland
Pop. 4,136
Area Codes Serving Middletown
About Middletown, Maryland
Middletown is a city in Maryland that is served by area codes 227, 240, 301. The city has a population of approximately 4,136 residents and is located in the Eastern Time Zone.