Editing St. Mary's County, Maryland (section)

==Transportation==
Numerous state highways serve St. Mary's County, including:

{{Div col|colwidth=15em}}
*[[File:MD Route 4.svg|20px]] [[Maryland Route 4]]
*[[File:MD Route 5.svg|20px]] [[Maryland Route 5]]
*[[File:MD Route 6.svg|20px]] [[Maryland Route 6]]
*[[File:MD Route 234.svg|20px]] [[Maryland Route 234]]
*[[File:MD Route 235.svg|20px]] [[Maryland Route 235]]
*[[File:MD Route 236.svg|20px]] [[Maryland Route 236]]
*[[File:MD Route 237.svg|20px]] [[Maryland Route 237]]
*[[File:MD Route 238.svg|20px]] [[Maryland Route 238]]
*[[File:MD Route 239.svg|20px]] [[Maryland Route 239]]
*[[File:MD Route 242.svg|20px]] [[Maryland Route 242]]
*[[File:MD Route 243.svg|20px]] [[Maryland Route 243]]
*[[File:MD Route 244.svg|20px]] [[Maryland Route 244]]
*[[File:MD Route 245.svg|20px]] [[Maryland Route 245]]
*[[File:MD Route 246.svg|20px]] [[Maryland Route 246]]
*[[File:MD Route 247.svg|20px]] [[Maryland Route 247]]
*[[File:MD Route 249.svg|20px]] [[Maryland Route 249]]
*[[File:MD Route 470.svg|20px]] [[Maryland Route 470]]
*[[File:MD Route 471.svg|20px]] [[Maryland Route 471]]
*[[File:MD Route 472.svg|20px]] [[Maryland Route 472]]
*[[File:MD Route 489.svg|20px]] [[Maryland Route 489]]
*[[File:MD Route 520.svg|20px]] [[Maryland Route 520]]
*[[File:MD Route 584.svg|20px]] [[Maryland Route 584]]
*[[File:MD Route 712.svg|20px]] [[Maryland Route 712]]
*[[File:MD Route 863.svg|20px]] [[Maryland Route 863]]
*[[File:MD Route 868.svg|20px]] [[Maryland Route 868]]
*[[File:MD Route 944.svg|20px]] [[Maryland Route 944]]
*[[File:MD Route 945.svg|20px]] [[Maryland Route 945]]
{{div col end}}

Limited local buses are provided through St. Mary's Transit<ref>{{Cite web|date=May 28, 2010|title=STS Overview|url=http://www.co.saint-marys.md.us/dpw/dpwtemplate.asp?content=stsstartcontent.asp|access-date=September 1, 2021|archive-url=https://web.archive.org/web/20100528195926/http://www.co.saint-marys.md.us/dpw/dpwtemplate.asp?content=stsstartcontent.asp|archive-date=May 28, 2010}}</ref> and commuter bus service to Washington, D.C. is provided by [[Maryland Transit Administration|MTA]].<ref>{{Cite web|title=Schedules {{!}} Maryland Transit Administration|url=https://www.mta.maryland.gov/schedule?type=commuter-bus|access-date=September 1, 2021|website=www.mta.maryland.gov}}</ref> Southern Maryland Express shuttle services daily schedules to Baltimore (BWI), Dulles (IAD), and Ronald Reagan (DCA).<ref>{{Cite web |title=Southern Maryland Express (SME) |url=http://www.somdexpress.com/ |url-status=dead |archive-url=https://web.archive.org/web/20230402043959/http://www.somdexpress.com/ |archive-date=April 2, 2023}}</ref>

The nearest commercial airports are [[Reagan National Airport]] in [[Arlington County, Virginia]] and [[Baltimore Washington International Airport]] in suburban Baltimore.

St. Mary's County also is served by a general aviation airport, [[Captain Walter Duke Regional Airport]] near [[California, Maryland]]