Leonardtown, Maryland

Leonardtown, Maryland
Downtown Leonardtown in May 2012
Motto: 
"Faithful to duty"
Coordinates: 38°17′43″N 76°38′17″W / 38.29528°N 76.63806°W / 38.29528; -76.63806
Country United States
State Maryland
County St. Mary's
Founded1660 as Seymour Town
Incorporation1858
Named afterLeonard Calvert
Government
 • TypeIncorporated town
Area
 • Total
3.88 sq mi (10.04 km2)
 • Land3.81 sq mi (9.87 km2)
 • Water0.069 sq mi (0.18 km2)
Elevation
85 ft (26 m)
Population
 (2020)
 • Total
4,563
 • Density1,197.6/sq mi (462.38/km2)
Time zoneUTC-5 (Eastern (EST))
 • Summer (DST)UTC-4 (EDT)
ZIP code
20650
Area codes301, 240
FIPS code24-46475
GNIS feature ID0594790
Websitehttp://leonardtown.somd.com

Leonardtown is a town in and the county seat of St. Mary's County, Maryland, United States. The population was 4,563 at the 2020 census.

Historic Leonardtown includes both a large public high school and a public middle school Leonardtown Middle School as well as a Catholic high school and an elementary school Leonardtown Elementary School, offices of the county government, and St. Mary's Hospital which serves the healthcare needs of the county. The College of Southern Maryland maintains a growing satellite campus within city limits, including an aquatic center. An upscale home development located in the Breton Bay area is just outside town, notable for both its country club golf course and swimming pool.

Leonardtown's population has grown significantly since 1990 as a result of the town's proximity to Patuxent River Naval Air Station and the Washington metro area.