Baltimore County is a
county located in the northern part of the
U.S. state of
Maryland. As of the
2010 census, the population was 805,029, making it the third-most populous county in Maryland. Its
county seat is in
Towson, in the north-central section just north of the adjacent
City of Baltimore. The name of the County was derived from the
barony of the Proprietor of the Calverts' new colony in the
Province of Maryland,
Cecil Calvert, 2nd Baron Baltimore, (1605-1675),, and the town of "Baltimore" in
County Cork, of southern coastal
Ireland.