Allegheny County

As of the 2020 census, the population was 1,250,578, making it the state's second-most populous county, after Philadelphia County. Its county seat and most populous city is Pittsburgh, Pennsylvania's second most populous city. The county is part of the Greater Pittsburgh region of the commonwealth, and is the center of the Pittsburgh media market.
Allegheny was the first county in Pennsylvania to be given a Native American name. It was named after the Lenape word for the Allegheny River. The meaning of "Allegheny" is uncertain. It is usually said to mean "fine river". Some historians state that the name may come from a Lenape account of an ancient mythical tribe called "Allegewi", who lived along the river before being taken over by the Lenape.[1]
Key Cities/Towns
- Pittsburgh (County Seat)
- McKeesport
- Duquesne
- Cairton
- Bethel Park
- Monroeville
- Penn Hills
- Dormont
- Wilkinsburg
- West Mifflin
Megan's Law Statistics
(Copy from PA Megan's Law Database, click on Community Tools at top then the 3rd "Count of..." link and tally residents only)
| County Total | Life Time | Out of State | Pre-SORNA SVP | SVDC | SVP | Ten-Year | T1 | T2 | T3 |
|---|---|---|---|---|---|---|---|---|---|
| 1,681 | 501 | 178 | 93 | 0 | 14 | 74 | 360 | 201 | 260 |
Last updated: 09/08/25
Registration Sites
(copy from https://www.meganslaw.psp.pa.gov/VerificationSites/VerificationSiteSearch)
- Allegheny Co ID Section, 660 First Avenue 1st Floor, PITTSBURGH PA 15219, Phone: (412) 350-6700
- State Police Pittsburgh. 449 McCormick Rd, MOON TOWNSHIP PA 15108, Phone: (412) 299-1607
County Parole/Probation Office Contact Information
Replace with relevant links:
Local Reentry Organizations
If you know of any local reentry organizations in the county, please contact us at contact@parsol.org. Replace with relevant links:
- a
SOAB Approved Treatment Providers
Copy from SOAB website - Note PARSOL partners as such.
Other PFR-Specific Resources
State Representatives and Senators
Find your state representatives and senators here: palegis.us.
PARSOL Information
Region & Contact
- Region: Pittsburgh
- Contact: First Name Last Initial
County Contact
- First Name Last Initial