Frederick County Address Data

  • State: Maryland
  • County: Frederick County
  • County Seat: Frederick
  • FIPS: 24021
  • Founded in: 1748
  • Population: 255,648
  • Density: 387 Persons/Square Mile
  • Area: 660 Square Miles
  • Government Type: County
  • Authority: Home Rule
  • Legislative Body: County Council
  • Legislative Body Size: 7
  • County Contact: 12 E Church St
    Winchester Hall
    Frederick, MD 21701-5437
  • County site: https://www.frederickcountymd.gov/
  • Labor Force: 130,831
  • Unemployment Rate: 3.50%
  • Gross Domestic Product (GDP): $12.5 B

Top Cities in Frederick County

Major Cities (population)

Neighbor Counties

  • Carroll County
  • Howard County
  • Montgomery County
  • Washington County
  • Adams County
  • Franklin County
  • Loudoun County
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