Allegheny County, Pennsylvania Genealogy Guide

Allegheny County, Pennsylvania (Map It) was created on September 24, 1788, from Washington County and Westmoreland County. The county was named for Lenape word for the Allegheny River, which possibly translates to "beautiful river" . Learn More About State of Pennsylvania History

Allegheny County is bordered by Butler County (north), Armstrong County (northeast), Westmoreland County (east), Washington County (southwest), Beaver County (northwest).

Armstrong County Townships include Aleppo, Baldwin, Collier, Crescent, East Deer, Elizabeth, Fawn, Findlay, Forward, Frazer, Hampton, Harmar, Harrison, Indiana, Kennedy, Kilbuck, Leet, Marshall, McCandless, Moon, Mount Lebanon, Neville, North Fayette, North Versailles, O'Hara, Ohio, Penn Hills, Pine, Reserve, Richland, Robinson, Ross, Scott, Shaler, South Fayette, South Park, South Versailles, Springdale, Stowe, Upper St. Clair, West Deer, Wilkins.

Allegheny County Boroughs include Aspinwalvalon, Baldwin, Becres, Bellevue, Bvon, Bvon Heights, Bethel Park, Blawnox, Brackenridge, Braddock, Braddock Hills, Bradfordwoods, Brentwood, Bridgeville, Carnegie, Castle Shannon, Chalfant, Cheswick, Churchill, Coraopolis, Crafton, Dormont, Dravosburg, East McKeesport, East Pittsburgh, Edgewood, Edgeworth, Elizabeth, Emsworth, Etna, Forest Hills, Fox Chapel, Franklin Park, Glassport, Glenfield, Green Tree, Haysville, Heidelberg, Homestead, Ingram, Jefferson Hills, Leetsdale, Liberty, Lincoln, McDonald, McKees Rocks, Millvale, Monroeville, Mount Oliver, Munhall, North Braddock, Oakdale, Oakmont, Osborne, Pennsbury Village, Pitcairn, Pleasant Hills, Plum, Port Vue, Rankin, Rosslyn Farms, Sewickley, Sewickley Heights, Sewickley Hills, Sharpsburg, Springdale, Swissvale, Tarentum, Thornburg, Trafford, Turtle Creek, Verona, Versailles, Wall, West Elizabeth, West Homestead, West Mifflin, West View, Whitaker, White Oak, Whitehall, Wilkinsburg, Wilmerding.

Allegheny County Cities & Towns include Clairton, Duquesne, McKeesport, Pittsburgh. See also Allegheny County Municipalities Incorporation Dates.

Allegheny County, Pennsylvania Courthouse Records

Allegheny County Townships Map
Allegheny County Townships Map


Allegheny County, PA Courthouse

The Allegheny County Courthouse is located in Pittsburgh, Pennsylvania. Learn More About State of Pennsylvania Court, Tax, Land and Probate Records.

Please contact the each clerk's department to confirm mailing address, hours, fees and other information before visiting or requesting information because contact information sometimes changes.  The Clerk's Office DOES NOT DO RESEARCH.  The documents are available to interested parties, barring confidential issues.  Most staff will assist people in finding the materials, but it is up to the individual to do the research.

The following dates indicates what vital, land, probate, and court records are in Allegheny county. The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered.

  • Allegheny County Recorder of Deeds has Land Records from 1788. The County Recorder of Deeds is responsible for recording documents related to property. Documents recorded consist of, but are not limited to, deeds, mortgages, restrictions, notaries, public and elected county officers. Other documents, such as Military Service Discharges, foreign birth certificates, as well as obscure documents like cattle brands, are also recorded here.
  • Allegheny County Prothonotary / Clerk of Courts has Court & Divorce Records from 1788. The Prothonotary / Clerk of Courts has been the clerk of court of common pleas since 1707. Court records here include divorces, naturalizations, peddlers' licenses, registration of attorneys, oaths of county officers, equity, sheriff's sales, juror lists, some tax records, and some civil court records.Other court records are with the clerk of courts.
  • Allegheny County Register of Wills/ Orphan's Court Clerk has Marriage & Probate Records from 1789 and Birth & Death Records from before Jan 1906. The Wills/ Orphan's Court Clerk are often the same person, sometimes sharing the responsibility of the recorder of deeds and clerk of courts as well. The Register of Wills' principal duties include probating wills and accepting for filing all documents necessary to complete the administration of a decedent's estate. The Clerk of Orphans' Court, our office serves as the filing office and custodian of records for matters involving adoptions, guardianships and estate litigation. The office also issues all marriage licenses. Since 1885 the clerk of the orphans' court in each county has had the responsibility of recording marriages.
  • Allegheny County Tax Assessor Office has tax records but may also be in the county commissioners' office or with the prothonotary.

Allegheny County, Pennsylvania Census Records

Allegheny County, Pennsylvania Vital Records

Allegheny County, Pennsylvania Resources

Allegheny County, Pennsylvania External Links

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