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[County Seal, Baltimore County, Maryland] Origin: The legal origin of Baltimore County is not known, but it was in existence by January 12, 1659/60 when a writ was issued to the sheriff of the county. The County name was derived from the name of the Proprietary's Barony in Ireland in the county of Longford.

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County Seat:
Towson, MD 21204
Form of Government: Charter since 1956
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[photo, Baltimore County Public Safety Building, 700 East Joppa Road, Towson, Maryland] Population
1990 census: 692,134
2000 census: 754,292
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  • Baltimore County Public Safety Building, 700 East Joppa Road, Towson, Maryland, May 2004. Photo by Diane F. Evartt.


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     Maryland Manual On-Line, 2009

    July 1, 2009   
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