[County Seal, Carroll County, Maryland] Origin: Carroll County was formed in 1837 from Baltimore and Frederick Counties by Constitutional amendment (Chapter 256, Acts of 1835; confirmed by Chapter 19, Acts of 1836, which was passed January 19, 1837). The County was named for Charles Carroll of Carrollton (1737-1832), Revolutionary War statesman and a Maryland signer of Declaration of Independence.

Boundaries: Bounded north by Pennsylvania; east by Baltimore County; south by Howard County; west by Frederick County.

[photo, Carroll County Historic Courthouse, Courthouse Square, 200 Willis St., Westminster, Maryland] County Code
County Seat:
Westminster, MD 21157
Form of Government: County Commissioners
Population: 1990 census: 123,372; 2000 census: 150,897; 2010 census: 167,134; 2020 census: 172,891

Carroll County Historic Courthouse, Courthouse Square, 200 Willis St., Westminster, Maryland, January 2002. Photo by Diane F. Evartt.


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