Keymar is an

unincorporated community An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...

in Carroll County,

Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It borders the states of Virginia to its south, West Virginia to its west, Pennsylvania to its north, and Delaware to its east ...

, United States. The name of the community is a portmanteau of the family name ''Key'' (of which

Francis Scott Key Francis Scott Key (August 1, 1779January 11, 1843) was an American lawyer, author, and poet from Frederick, Maryland, best known as the author of the poem "Defence of Fort M'Henry" which was set to a popular British tune and eventually became t ...

was a member) and ''Mar'' for Maryland. In 1822, Francis Scott Key sold his father's mansion and estate on Pipe Creek near this community. ''Keymar'' was likely the name of that estate.

References

Unincorporated communities in Carroll County, Maryland Unincorporated communities in Maryland {{CarrollCountyMD-geo-stub