Welcome is an unincorporated community in Charles County, Maryland. The designated zip code is 20693.
It is 7 miles from La Plata on Rt 6 West. The Goose Bay campground and marina are also located in Welcome. Rosemary Lawn, a plantation owned since the 18th century by the Barnes-Compton family, was listed on the National Register of Historic Places in 1992.
- Barnes Compton, 19th-century Congressman and state senator,who resided at Rosemary Lawn, a plantation inherited from his mother, Mary Key (Barnes) Compton.