Frederick County, Maryland

Frederick County
Downtown Frederick with the Blue Ridge Mountains in the distance in June 2014
Downtown Frederick with the Blue Ridge Mountains in the distance in June 2014
Flag of Frederick County
Official seal of Frederick County
Nicknames: 
"Frederick", "FredCo"
Location of Frederick County in Maryland
Location of Frederick County in Maryland
Coordinates: 39°28′N 77°24′W / 39.47°N 77.40°W / 39.47; -77.40
CountryUnited States
StateMaryland
FoundedJune 10, 1748
County seatFrederick
Government
 • County ExecutiveJessica Fitzwater
 • County CouncilRenee Knapp (D)
Brad Young (D)
Jerry Donald (D)
Steven McKay (R)
M. C. Keegan-Ayer (D)
Kavonte Duckett (D)
Mason Carter (R)[1]
Area
 • Total667 sq mi (1,730 km2)
 • Land660 sq mi (1,700 km2)
 • Water7.2 sq mi (19 km2)
Population
 (2020)
 • Total271,717
 • Density410/sq mi (160/km2)
Time zoneEastern (EST)
 • Summer (DST)EDT
ZIP Codes
21701, 21702, 21703, 21704, 21705, 21709
Area codes301, 240
Congressional districts6th
Websitehttp://www.FrederickCountyMD.gov/

Frederick County is located in Maryland, United States. As of the 2020 U.S. census, the population was 271,717.[2] The county seat is Frederick.[3]

Frederick County is part of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area. Like other outlying sections of the Washington metropolitan area, Frederick County has experienced a rapid population increase in recent[when?] years.[4] It borders the southern border of Pennsylvania and the northeastern border of Virginia.

Catoctin Mountain Park in the county is the location of Camp David, a U.S. presidential retreat, and Fort Detrick, a U.S. Army base.

  1. ^ "2022 Frederick County Election Results". Frederick County. Retrieved December 5, 2022.
  2. ^ "Frederick County, Maryland". United States Census Bureau. Retrieved January 30, 2022.
  3. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  4. ^ "Population Change in Suburban Maryland" (PDF). George Mason University. Retrieved February 16, 2014.
    "Metropolitan sprawl puts urban in suburban". 2012. Retrieved February 16, 2014.

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