[County Seal, Frederick County, Maryland] Origin: Frederick County was created in 1748 from Baltimore and Prince George's counties (Chapter 15, Acts of 1748). The County probably was named after Frederick Calvert (1731-1771), sixth and last Lord Baltimore, who was the Proprietor of Maryland from 1751 until his death in 1771 at Naples, Italy.

Boundaries: Bounded north by Pennsylvania; east by Carroll & Howard counties; south by Montgomery County & Potomac River; west by Washington County.

[photo, Winchester Hall, 12 East Church St., Frederick, Maryland] County Charter
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Frederick, MD 21701
Form of Government: Charter since December 1, 2014
Population: 1990 census: 150,208; 2000 census: 195,277; 2010 census: 233,385

Winchester Hall, 12 East Church St., Frederick, Maryland, July 2003. Photo by Diane F. Evartt.


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