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Baltimore County
Founded: June 30, 1659
Named for: Cecil Calvert, 2nd Baron Baltimore
County Seat: Towson
Largest Community: Dundalk
Total Area: 682 sq. miles

The name of the county was derived from the barony of the Proprietor of the Maryland colony, Cæcilius Calvert, 2nd Baron Baltimore, in County Longford, Ireland. The County Seat is Towson.

It should be noted that Baltimore County does not include the City of Baltimore, which was split off as
an independent city in 1851.

The origin of Baltimore County is not known, the earliest known record of the county politically is January 12, 1659, when a writ was issued to its sheriff. Previously, Baltimore County was more known
as a geographical entity than a political one, with its territorial limits consisting of the presentday Baltimore City, Cecil and Harford Counties, as well as parts of Carroll, Anne Arundel, Frederick, Howard and Kent Counties.

In 1674, a portion of Baltimore County, as well as a portion of Kent County, was split off to form Cecil County. In 1748, a portion of Baltimore County, as well as a portion of Prince George's County, was split off to form Frederick County. In 1773, Harford County was split off from Baltimore County. In 1837, a part of Baltimore County was combined with a part of Frederick County to form Carroll County. In 1851 the city of Baltimore was detached from Baltimore County.



County Seat
Towson

Census-Designated Places
Arbutus • Baltimore Highlands • Bowleys Quarters • Carney • Catonsville • Cockeysville
Dundalk • Edgemere • Essex • Garrison • Hampton • Kingsville • Lansdowne • Lochearn
Lutherville • Mays Chapel • Middle River • Milford Mill • Overlea • Owings Mills • Parkville
Perry Hall • Pikesville • Randallstown • Reisterstown • Rosedale • Rossville • Timonium
Towson • White Marsh • Woodlawn

Unincorporated Communities
Baldwin • Boring • Bradshaw • Brooklandville • Butler • Chase • Fork • Fort Howard
Germantown • Glen Arm • Glencoe • Glyndon • Halethorpe • Hereford • Hunt Valley
Hydes • Jacksonville • Long Green • Maryland Line • Monkton • Nottingham • Oella
Parkton • Phoenix • Ruxton • Sparks • Sparrows Point • Stevenson • Turners Station
Upper Falls • Upperco • White Hall

National Protected Area
Hampton National Historic Site

State Protected Area
Soldiers Delight Natural Environment Area

Surrounding Counties
York County, Pennsylvania (north)
Anne Arundel County, Maryland (south)
Carroll County, Maryland (west)
Harford County, Maryland (east)
Howard County, Maryland (southwest)
Baltimore City, Maryland
(independent city, surrounded by
Baltimore County except to the south)



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