Allegheny County, PA

ALLEGHANY COUNTY, in the southwestern part of Pennsylvania. Watered by Alleghany, Youghiogheny, Monongahela, and Ohio rivers. Length of this county, 32 miles; mean breadth, 18, with an area of 575 square miles. The face of the country is peculiarly diversified by depressed vales, lying within large swelling hills, which are productive to their summits. In the bosom of these hills there exist inexhaustible beds of fine bituminous coal. Excellent lime and building stone also abounds. Courts are held at Pittsburgh. Pop. in 1820,34,921; in 1830, 50,552; in 1840, 81,235; in 1850, 138,300. (Fanning's, 1853)
Place Unit Type
Containing Unit
Name Type
Carnegie, PA City or Town
Carrick, PA City or Town
Elizabeth, PA City or Town
Greentree, PA City or Town
Pittsburgh, PA City or Town
Sewickley, PA City or Town
Wilkinsburg, PA City or Town
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