St. Mary's County

St. Mary's County is an administrative county in Maryland with an expansive water landscape shaped by rivers and Chesapeake Bay waters. The terrain is defined by waterways and coastal areas that cover a large portion of the region.

The area was founded in 1637 as Maryland's first established county when English colonists first landed here. This early settlement made it the birthplace of English colonial presence in the region.

The region has a deep connection to religious tolerance, as early laws protecting freedom of belief originated here. These traditions shape how people of different faiths live together in communities today.

The region is connected by Maryland Route 235, which links various communities together and to commercial centers. For visitors, using this main road helps access the key areas throughout the county.

Near Mechanicsville, an active Amish community preserves traditional farming methods practiced since their arrival from Pennsylvania. This community forms a striking contrast to modern development in other parts of the county.

Location: Maryland

Inception: 1637

Capital city: Leonardtown

Part of: California-Lexington Park, MD Metropolitan Statistical Area

Shares border with: Charles County, Calvert County, Dorchester County, Somerset County, Westmoreland County, Northumberland County

Website: https://stmarysmd.com

GPS coordinates: 38.25222,-76.56361

Latest update: December 15, 2025 13:21