Rison is an

unincorporated community An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...

Charles County Charles County is a county in Southern Maryland. As of the 2020 census, the population was 166,617. The county seat is La Plata. The county was named for Charles Calvert (1637–1715), third Baron Baltimore. Charles County is part of the Wash ...

Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...

, United States. The Rison post office was established in 1905, but the area's residents are now part of the 20640 zip code area for nearby Indian Head. The community's elevation is 50 feet and it had a population of 50 in 1941. Revolutionary War General

William Smallwood William Smallwood (1732February 14, 1792) was an American planter, soldier and politician from Charles County, Maryland. He served in the American Revolutionary War, rising to the rank of major general. He was serving as the fourth Governor ...

's home is preserved at Smallwood State Park in Rison along the

Mattawoman Creek Mattawoman Creek is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 15, 2011 coastal-plain tributary to the tidal Potomac River with a mouth at Indian Head, Maryland, downstr ...

. Sweden Point Marina, site of major fishing tournaments, is located within the park, and used to be known as Sweetman's Landing. The site of historic Grinder's Wharf, in the mid-19th century an active steamship port for the Washington Steamship Lines, is off Upham Road in Rison. The residential subdivision Rison Acres was platted in 1973, the same year as the nearby Smallwood Estates subdivision. From 1955 to 2000, Robert Linkins, born in Rison, operated a one-man sawmill in Rison; the dirt road to his sawmill is now officially Linkins Road on Maryland State Route 224. Linkins died in 2008. Obituary
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References

Unincorporated communities in Charles County, Maryland Unincorporated communities in Maryland {{CharlesCountyMD-geo-stub