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.co.cal.md.us/index.aspx?nid=113
Agricultural Preservation: www.co.cal.md.us/index.aspx?nid=542
Animal Control: www.co.cal.md.us/index.aspx?nid=1301
Calvert County: www.co.cal.md.us/
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.co.cal.md.us/index.aspx?nid=2204
Community Resources Dept.: www.co.cal.md.us/index.aspx?nid=94
County Administrator: www.co.cal.md.us/index.aspx?nid=148
County Commissioners: www.co.cal.md.us/index.aspx?nid=137
County Government: www.co.cal.md.us/index.aspx?nid=27
County Government Directory: http://www.co.cal.md.us/directory.aspx
Detention Center: www.co.cal.md.us/index.aspx?nid=99
District Court: www.mdcourts.gov/district/directories/courtmap.html#CALVERT
Economic Development Dept.: www.co.cal.md.us/index.aspx?nid=100
Elections Board: www.co.cal.md.us/index.aspx?nid=154
Emergency Management Division: www.co.cal.md.us/index.aspx?nid=101
![[photo, Research boat, Patuxent River, Chesapeake Biological Laboratory, Solomons, Maryland]](/msa/mdmanual/25univ/envir/images/1198-1-09606b.jpg)
Environmental Section: www.co.cal.md.us/index.aspx?nid=550
Ethics Commission: www.co.cal.md.us/index.aspx?nid=687
Finance & Budget Dept.: www.co.cal.md.us/index.aspx?nid=103
Fire, Rescue & Emergency Medical Services Division: www.co.cal.md.us/index.aspx?nid=104
General Services Dept.: www.co.cal.md.us/index.aspx?nid=836
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.co.cal.md.us/index.aspx?nid=1252
Housing Authority: www.calverthousing.org/
Human Resources Dept.: www.co.cal.md.us/index.aspx?nid=116
Inspections & Permits Division: www.co.cal.md.us/index.aspx?nid=497
Job Service: www.dllr.state.md.us/county/smd/
Law Office: www.co.cal.md.us/index.aspx?nid=149
Libraries: http://calvert.lib.md.us/
Natural Resources Division: www.co.cal.md.us/index.aspx?nid=1190
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.co.cal.md.us/index.aspx?nid=153
Parks & Recreation Dept.: www.co.cal.md.us/index.aspx?nid=115
Planning & Zoning Dept.: www.co.cal.md.us/index.aspx?nid=117
Public Safety Dept.: www.co.cal.md.us/index.aspx?nid=120
Public Schools: www.calvertnet.k12.md.us/
Public Works Dept.: www.co.cal.md.us/index.aspx?nid=121
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.co.cal.md.us/index.aspx?nid=368
Social Services Dept.: http://dhr.maryland.gov/local-offices/calvert-county/
Solid Waste & Recycling Division: www.co.cal.md.us/index.aspx?nid=127
State's Attorney: www.calvertstatesattorney.com/Welcome.html
Technology Services Dept.: www.co.cal.md.us/index.aspx?nid=824
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.co.cal.md.us/index.aspx?nid=130
Treasurer's Office: www.co.cal.md.us/index.aspx?nid=174
Water & Sewerage Division: www.co.cal.md.us/index.aspx?nid=132
Zoning, Permitting & Citizen Relations Section: www.co.cal.md.us/index.aspx?nid=812
Governor Thomas Johnson Bridge, Solomons, Maryland, April 2019. Photo by Diane F. Evartt.
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