Allegheny County, Pennsylvania


Pittsburgh Steelworker

Steelworker in Pittsburgh steel mill

 (Photo courtesy of the  Library of Congress, Office of War Information, LC-USF33-002840-M2 )




(Source: U.S. Census bureau, 2010)


Population: 1,223,348

Primary ethnic makeup:  Irish, German, African-American, Eastern European, Italian

Industries:  Steel, manufacturing, coal, retail

Major cities:  Pittsburgh



County Records

Allegheny County was formed from Westmoreland and Washington Counties in 1788

Land Records - Deeds from 1789 - present, Department of Real Estate - 542 Forbes Avenue, Room 101, (412) 350-4210

Birth and Death Records - 1870 - Present - Carnegie Library of Pittsburgh, Pennsylvania Department

Marriages - (Pittsburgh Only) - 1870 - 1879 - Orphan's Court - 414 Grant Street, Pittsburgh, (412) 350-4180    








Allegheny City Society


Allegheny Foothills Historical Society


Carnegie Library, Pennsylvania Department


Heinz History Center


Historic Pittsburgh, (Project of the University of Pittsburgh)


Jewish Genealogical Society of Greater Pittsburgh


Mifflin Township Historical Society


North Hills Genealogists


PA GenWeb: Allegheny County


Rivers of Steel National Heritage Area [Museum and Archives]


Sewickley Valley Historical Society

Soldiers and Sailors Hall and Museum


Tarentum Genealogical Society




Pittsburgh City Directories


Allegheny County Cemetery Records


Allegheny County Government Website


Don's List - Pittsburgh - Allegheny County and Much More



(Allegheny Township Map courtesy of Kristin Bryson and Bare Roots Publishing)