CALVERT COUNTY, MARYLAND
![[County Seal, Calvert County, Maryland]](/msa/mdmanual/36loc/cal/images/1198-1-885b.gif)
Origin: In 1654, Calvert County was established by an Order in Council and called Patuxent County until 1658. The County name derives from the family name of Lord Baltimore, the Proprietary of the Maryland colony.
Boundaries: Bounded north by Anne Arundel County; east & south by Chesapeake Bay; west by Patuxent River.
County Code
County Seat: Prince Frederick, MD 20678
Form of Government: County Commissioners
Population: 1990 census: 51,372; 2000 census: 74,563; 2010 census: 88,737
![[photo, Calvert County Courthouse, Prince Frederick, Maryland]](/msa/mdmanual/36loc/cal/images/1198-1-868.jpg)
Calvert County Courthouse, 175 Main St., Prince Frederick, Maryland, September 2004. Photo by Diane F. Evartt.
websites:
Aging Office: www.calvertcountymd.gov/113/Office-on-Aging
Agricultural Preservation: www.calvertcountymd.gov/542/Agricultural-Preservation
Animal Control: www.calvertcountymd.gov/1301/Animal-Control
Calvert County: www.calvertcountymd.gov/
Circuit Court: http://circuitcourt.co.cal.md.us/
College of Southern Maryland (Prince Frederick Campus): www.csmd.edu/about/locations/prince-frederick-campus/
Communications & Media Relations Dept.: www.calvertcountymd.gov/2204/Communications-and-Media-Relations
Community Resources Dept.: www.calvertcountymd.gov/94/Community-Resources
County Administrator: www.calvertcountymd.gov/148/County-Administrator
County Commissioners: www.calvertcountymd.gov/137/Board-of-County-Commissioners-BOCC
County Government: www.calvertcountymd.gov/27/Government
County Government Directory: www.calvertcountymd.gov/directory.aspx
Detention Center: www.calvertcountymd.gov/99/Detention-Center
District Court: www.mdcourts.gov/district/directories/courtmap.html#CALVERT
Economic Development Dept.: www.calvertcountymd.gov/100/Economic-Development
Elections Board: www.calvertcountymd.gov/154/Election-Board
Emergency Management Division: www.calvertcountymd.gov/101/Emergency-Management
![[photo, Research boat, Patuxent River, Chesapeake Biological Laboratory, Solomons, Maryland]](/msa/mdmanual/25univ/envir/images/1198-1-09606b.jpg)
Environmental Section: www.calvertcountymd.gov/550/Environmental
Ethics Commission: www.calvertcountymd.gov/687/Ethics-Commission
Finance & Budget Dept.: www.calvertcountymd.gov/103/Finance-and-Budget
Fire, Rescue & Emergency Medical Services Division: www.calvertcountymd.gov/104/FireRescueEMS
General Services Dept.: www.calvertcountymd.gov/836/General-Services
Health Dept.: www.calverthealth.org/
Research boat, Patuxent River, Chesapeake Biological Laboratory, Solomons, Maryland, April 2019. Photo by Diane F. Evartt.
![[photo, Mallards and Canada Goose, Solomons, Maryland]](/msa/mdmanual/25univ/envir/images/1198-1-09599b.jpg)
Historic Preservation: www.calvertcountymd.gov/1252/Historic-Preservation
Housing Authority: www.calverthousing.org/
Human Resources Dept.: www.calvertcountymd.gov/116/Human-Resources
Inspections & Permits Division: www.calvertcountymd.gov/497/Inspections-and-Permits
Job Service: www.dllr.maryland.gov/county/smd/
Law Office: www.calvertcountymd.gov/149/County-Attorney
Libraries: https://calvertlibrary.info/
Natural Resources Division: www.calvertcountymd.gov/1190/Natural-Resources
Mallards (Anas platyrhynchos) & Canada Goose (Branta canadensis), Solomons, Maryland, April 2019. Photo by Diane F. Evartt.
![[photo, Edward T. Hall Aquatic Center, Prince Frederick, Maryland]](/msa/mdmanual/36loc/cal/images/1198-1-06416b.jpg)
Orphans' Court: www.calvertcountymd.gov/153/Orphans-Court
Parks & Recreation Dept.: www.calvertcountymd.gov/115/Parks-and-Recreation
Planning & Zoning Dept.: www.calvertcountymd.gov/117/Planning-Zoning
Public Safety Dept.: www.calvertcountymd.gov/120/Public-Safety
Public Schools: www.calvertnet.k12.md.us/
Public Works Dept.: www.calvertcountymd.gov/121/Public-Works
Register of Wills: http://registers.maryland.gov/main/calvert.html
Edward T. Hall Aquatic Center, 130 Auto Drive, Prince Frederick (Calvert County), Maryland, July 2014. Photo by Diane F. Evartt.
Sheriff's Office: www.calvertcountymd.gov/368/Sheriffs-Office
Social Services Dept.: http://dhr.maryland.gov/local-offices/calvert-county/
Solid Waste & Recycling Division: www.calvertcountymd.gov/127/Solid-Waste-and-Recycling
State's Attorney: https://calvertstatesattorney.com/
Technology Services Dept.: www.calvertcountymd.gov/824/Technology-Services
Tourism Office: www.choosecalvert.com/
![[photo, Governor Thomas Johnson Bridge, Solomons, Maryland]](/msa/mdmanual/36loc/cal/images/bridges/1198-1-09579b.jpg)
Transportation Division, Public: www.calvertcountymd.gov/130/Public-Transportation
Treasurer's Office: www.calvertcountymd.gov/174/Treasurers-Office
Water & Sewerage Division: www.calvertcountymd.gov/132/Water-and-Sewer
Zoning, Permitting & Citizen Relations Section: www.calvertcountymd.gov/812/Zoning-Permitting-and-Citizen-Relations
Governor Thomas Johnson Bridge, Solomons, Maryland, April 2019. Photo by Diane F. Evartt.
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