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Pennsylvania · Greater Pittsburgh · #35 Most Populous County in the US
Allegheny County, Pennsylvania
From Pittsburgh's three rivers and the steel legacy of the Mon Valley to the university corridors of Oakland and the affluent suburbs of the North Hills and South Hills - Pennsylvania's second most populous county and the economic anchor of western Pennsylvania. Property tax, courts, public records, and local services for Allegheny County residents.
Affiliate disclosure: This page contains affiliate links. We may earn a commission if you use them, at no extra cost to you. Our editorial recommendations are independent of these relationships.
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Allegheny County's assessment ratio means effective tax rates are low — but incorrect appraisals still cost money. Ownwell manages the appeal with no upfront cost.
Office: Allegheny County Emergency Services (ACES) – accessible via alleghenycounty.us | Chief: (412) 473-2303 | 911 Coordinator: (412) 473-1412
Services: Prevention, preparation, protection, response, and recovery from natural and man-made emergencies and acts of terrorism countywide
Roads & Utilities
ROADS & TRANSPORTATION
Roads: I-76, I-79, I-376, and the Parkway system converge at Pittsburgh, the county seat, at the confluence of the Allegheny, Monongahela, and Ohio Rivers
Transit: Pittsburgh Regional Transit (PRT) operates buses, light rail, and inclines throughout the county – confirm current routes directly.
Business & Permits
BUILDING & PERMITS
Office: No single county building permit office – Allegheny County has 130 municipalities (Pittsburgh plus boroughs and townships) and NO unincorporated land; every building permit is issued at the MUNICIPAL level, not by the county
Services: Each municipality enforces Pennsylvania’s statewide Uniform Construction Code (UCC) either through its own code office or a certified third-party inspection agency; for the City of Pittsburgh, permits are handled through the OneStopPGH portal
Notes: This is a genuinely important structural fact for the county – there is no countywide building department; identify your specific municipality first before seeking a permit.
Veterans Services
VETERANS SERVICES
County VSO: Allegheny County Veterans Services – Pittsburgh, PA
Libraries
LIBRARIES
System: Carnegie Library of Pittsburgh – main branch plus numerous neighborhood branches across the city and county
Main Branch: Carnegie Library of Pittsburgh, Main (Oakland) – accessible via carnegielibrary.org
Related: Carnegie Library of Pittsburgh – Allegheny branch – 1230 Federal St, Pittsburgh, PA 15212, (412) 237-1890, Hours: Mon–Thu 10 AM–8 PM, Fri–Sat 10 AM–5 PM (closed Sun); Carnegie Library of Homestead – a separate historic Carnegie library (built 1896-1898) in Munhall, part of the same philanthropic legacy but independently operated.
Services: Pittsburgh is genuinely the birthplace of the modern free public library system funded by Andrew Carnegie – the city’s library network, launched with Carnegie’s own funding in the 1890s, became the model for the roughly 2,500 Carnegie libraries eventually built across the English-speaking world; the Allegheny branch (1890) was Pittsburgh’s first Carnegie library.
Parks & Recreation
PARKS & RECREATION
Key Assets: Allegheny County is genuinely the birthplace of commercial radio broadcasting in the United States: KDKA, operated by the Westinghouse Electric and Manufacturing Company from a small wooden shack atop its East Pittsburgh plant, went on the air on November 2, 1920, broadcasting live returns of the Harding-Cox presidential election – the first scheduled broadcast by a federally licensed commercial radio station anywhere in the country, following an October 27, 1920 license issued by the Department of Commerce; the station traced its roots to Westinghouse engineer Frank Conrad’s earlier amateur station, 8XK, whose informal music broadcasts from his home garage had already built a loyal local audience of hobbyist listeners; announcer Leo Rosenberg read the returns as they were telephoned in from the Pittsburgh Post newsroom, while music from phonograph records filled the gaps between updates, and the small crew broadcast continuously for roughly 18 hours through election night; the experiment’s overwhelming popularity proved radio’s commercial viability almost overnight – within four years, roughly 600 radio stations existed nationwide; KDKA went on to pioneer other broadcasting firsts, including the first live sports broadcast (a boxing match, April 1921) and the first transatlantic broadcast from the US to England (1924); the station, still broadcasting today, remains one of the most historically significant sites in the entire history of American mass media
Notes: Allegheny County’s genuine, extensively documented status as the birthplace of commercial radio broadcasting is a landmark piece of American media history.
GIS & Maps
GIS & MAPS
GIS Portal: Allegheny County GIS – accessible via alleghenycounty.us
Parcel Search: Allegheny County Office of Property Assessments
Addressing/911: Coordinated through Allegheny County Emergency Services
Animal Services
ANIMAL SERVICES
Facility: City of Pittsburgh Bureau of Animal Care & Control – (412) 255-2036 (office, Mon–Fri 7 AM–3 PM) | Emergencies: (412) 255-2935 (nights/weekends)
Services: Serves City of Pittsburgh residents with domestic animal and wildlife control
Related: Humane Animal Rescue (HARP) – two shelter locations, including 6926 Hamilton Ave, Pittsburgh, PA 15206, (412) 345-7300, Hours: Tue–Fri 12–6 PM, Sat–Sun 10 AM–4 PM (closed Mon); formed in 2017 from the merger of the Animal Rescue League Shelter & Wildlife Rehabilitation Center (established 1909) and the Western Pennsylvania Humane Society (established 1874); operates low-cost wellness clinics and a licensed wildlife rehabilitation center for native Pennsylvania wildlife; adopters must be 21+ (18+ to reclaim a pet); partners with Animal Friends for additional adoptable animals.
Notes: Like building permits, animal control outside the City of Pittsburgh is generally handled at the MUNICIPAL level across Allegheny County’s 130 jurisdictions – confirm which applies to your specific location.
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Environmental Complaints: Allegheny County Health Department (Air Quality Program) and PA DEP – dep.pa.gov
Notes: Contact your specific municipality directly for current refuse collection and recycling program details, as these are municipally managed.
NOTES
Allegheny County is genuinely the birthplace of commercial radio broadcasting (KDKA, 1920) and home to the original Carnegie library model that spread worldwide. All contact information above was sourced from official county, city, library, and shelter pages as of this writing; phone numbers and hours should be reconfirmed directly with the relevant office before a visit.
About Allegheny County
Allegheny County is Pennsylvania’s second most populous county and the thirty-fifth most populous in the United States, encompassing the City of Pittsburgh and 129 surrounding municipalities – boroughs, townships, and cities – across 745 square miles at the confluence of the Allegheny, Monongahela, and Ohio rivers.
Pittsburgh (population ~303,000, the county seat) is one of America’s most dramatic urban reinvention stories. The steel capital that defined 20th-century industrial America has remade itself around technology, healthcare, education, and robotics – Carnegie Mellon University’s robotics and artificial intelligence programs and the University of Pittsburgh’s medical complex have attracted billions in research investment and spawned a technology ecosystem that draws comparisons to smaller versions of Boston’s Kendall Square. Pittsburgh’s three rivers, 446 bridges (more than any city in the world), and dramatic topography of hills, valleys, and inclines give it a physical character unlike any other American city.
Oakland – Pittsburgh’s university district – is home to the University of Pittsburgh (founded 1787, enrollment ~34,000) and Carnegie Mellon University (founded 1900, enrollment ~15,000), along with the UPMC (University of Pittsburgh Medical Center) health system, which is among the largest employers in Pennsylvania and one of the most influential academic medical centers in the country. The Cathedral of Learning, at 42 stories the tallest educational building in the Western Hemisphere, dominates Oakland’s skyline.
Squirrel Hill is Pittsburgh’s historic Jewish neighborhood and one of the most vibrant urban neighborhoods in western Pennsylvania – nationally recognized for its community cohesion and tragically for the Tree of Life synagogue shooting of October 2018. The neighborhood’s Murray and Forbes Avenue corridors anchor a dense commercial district that serves the surrounding East End.
The Mon Valley – the Monongahela River valley stretching southeast from Pittsburgh through McKeesport, Duquesne, and Clairton – carries the weight of the steel industry’s collapse. The shuttered mills of U.S. Steel and Jones & Laughlin that once employed tens of thousands defined the valley’s identity; their absence defines it still, though redevelopment efforts along the riverbanks continue.
The North Hills (including communities like Mt. Lebanon, Upper St. Clair, and Fox Chapel) and South Hills suburbs represent the county’s affluent residential tier – well-regarded school districts, high property values, and strong demand from Pittsburgh’s professional class.
All Services
Browse every category and topic available for this county.
Pennsylvania’s property tax system is complex by design. Allegheny County assesses property at 100% of assessed value, but the Common Level Ratio (CLR) – published annually by the Pennsylvania State Tax Equalization Board (STEB) – determines the effective relationship between assessed value and market value. When the CLR diverges significantly from 1.0, it creates systematic over- or under-assessment relative to true market value.
The appeal process: File with the Board of Property Assessment Appeals and Review (BPAAR) at the Allegheny County Office Building, 542 Forbes Avenue, Pittsburgh, PA 15219. The annual appeal deadline is March 31 for assessments effective the following year. Both property owners and school districts can file appeals – school district “reverse appeals” (appealing assessments they consider too low) have been a significant issue in Allegheny County, particularly affecting properties that have appreciated sharply.
Pittsburgh school district: The Pittsburgh Public Schools and numerous suburban school districts rely heavily on property tax revenue. School district reverse appeals mean that even property owners who have not filed appeals may receive notices that their assessment is being challenged upward by the school district.
Homestead exemption: Pennsylvania’s Act 50 homestead exemption reduces the assessed value of a primary residence for school district taxation purposes. Each school district sets its own exclusion amount. Apply at the Allegheny County Office Building.
PA inheritance tax: Pennsylvania imposes an inheritance tax (not estate tax) on assets passing at death – 0% to surviving spouses, 4.5% to direct descendants (children, grandchildren), 12% to siblings, 15% to all others. There is a 5% discount for taxes paid within three months of death. Pennsylvania has no estate tax separate from the inheritance tax. Proper beneficiary designations and trust structures can significantly reduce Allegheny County estate transfer costs.
OWNWELL CTA: Allegheny County’s CLR-based assessment system and active school district reverse appeals make annual review essential. March 31 appeal deadline. PA inheritance tax 4.5% to descendants, 12% to siblings. Ownwell manages property tax appeals with no upfront cost.
Recommended
Allegheny County's CLR-based assessment system and active school district reverse appeals make annual review essential. March 31 appeal deadline. PA inheritance tax 4.5% to descendants, 12% to siblings. Ownwell manages property tax appeals with no upfront cost.
Courts & Legal
Courts & Legal
Orphans’ Court (Probate): Pennsylvania calls its probate court the Orphans’ Court Division of the Court of Common Pleas. The Allegheny County Orphans’ Court is located at the City-County Building, 414 Grant Street, Pittsburgh, PA 15219, phone 412-350-4705. It handles wills, estate administration, guardianships, adoptions, and trust matters. Register of Wills – the office that actually probates wills and issues letters testamentary – is at the same address.
Court of Common Pleas: The Allegheny County Court of Common Pleas at the City-County Building handles civil, criminal, family, and orphans’ court matters. It is one of the largest common pleas courts in Pennsylvania.
District Courts: Magisterial District Courts are distributed across Allegheny County’s municipalities handling minor civil and criminal matters – there are over 30 MDJ offices across the county.
Recorder of Deeds: The Allegheny County Recorder of Deeds at 542 Forbes Avenue, Pittsburgh, PA 15219, phone 412-350-4224, maintains all real property records including deeds, mortgages, and liens. Pennsylvania does not have a unified statewide land records database – Allegheny County’s recorder maintains its own index searchable online through the county website.
Senior Services
The Allegheny County Department of Human Services Area Agency on Aging serves the county’s substantial senior population. Services include in-home care coordination, caregiver support, nutrition programs (congregate meals and Meals on Wheels), legal services, and transportation. The main line is 412-350-5460. Pittsburgh’s geography – hills, limited transit in some areas, and aging housing stock – creates particular challenges for aging in place that the AAA programs are designed to address.
PACE (Program of All-Inclusive Care for the Elderly) has multiple providers operating in Allegheny County, offering a comprehensive alternative to nursing home placement for qualifying seniors.
Recommended
Assisted living, memory care, and independent living across Allegheny County - from Pittsburgh's East End and South Hills to the North Hills suburbs.
Genealogy
County-level record sources
Allegheny County Department of Court Records, Wills/Orphans’ Court Division, Pittsburgh (probate records including will packets/files from 1789 – see Probate section above).
Carnegie Library of Pittsburgh and Historic Pittsburgh digital collection hold significant regional historical and genealogical resources.
Local societies
Historical Society of Western Pennsylvania confirmed, based in Pittsburgh.
Probate & Estate
Losing someone and having to deal with courts and paperwork at the same time is hard. This section won’t make that easier, but it should tell you what to expect, what it costs, and where to go – so at least you’re not walking in blind.
Where to go
Department of Court Records, Wills/Orphans’ Court Division, Allegheny County 414 Grant Street, 1st Floor, City-County Building, Pittsburgh, PA 15219 (412) 350-4180
Allegheny County is in southwestern Pennsylvania, seated in Pittsburgh – the Commonwealth’s second most populous county with over 1.28 million residents.
Step 1: figure out which path applies
Pennsylvania has NOT adopted the Uniform Probate Code. Probate runs through its own statute, the Probate, Estates and Fiduciaries (PEF) Code, Title 20 of the Pennsylvania Consolidated Statutes. Probate begins at the Register of Wills – an elected county official – in the county where the decedent lived. Routine, uncontested probate happens entirely at the Register of Wills; only disputes escalate to the Orphans’ Court Division of the Court of Common Pleas.
Small Estate Petition (20 Pa.C.S. § 3102) – available when the estate’s personal property (excluding real estate) totals $50,000 or less. This lets an interested party petition the Orphans’ Court directly for approval of a proposed distribution, skipping the need to formally open a full probate estate. Real property is never covered by this simplified process.
Formal Probate – required for estates exceeding $50,000 in personal property, or for any estate involving real property that needs to pass through probate. The Register of Wills validates the will (if any) and issues Letters Testamentary or Letters of Administration.
Step 2: filing for administration
The personal representative files with the Register of Wills in Allegheny County, along with the original will if one exists.
The Register of Wills reviews and, if in order, issues Letters Testamentary or Letters of Administration.
The personal representative gathers assets, notifies heirs and known creditors, and begins settling the estate.
Pennsylvania has a one-year creditor period running from the date of death, not from any published notice.
A Pennsylvania Inheritance Tax Return (REV-1500) must be filed with the Register of Wills, regardless of estate size.
Once debts, taxes, and expenses are settled, remaining assets are distributed according to the will or Pennsylvania’s intestacy laws, and the estate is closed.
What it costs
Filing fees vary; check with Allegheny County directly for current fees.
Pennsylvania has NO separate state estate tax, but its INHERITANCE TAX applies to virtually every estate: 0% to a surviving spouse (and to a parent inheriting from a child 21 or younger), 4.5% to children and other lineal descendants, 12% to siblings, and 15% to everyone else. No dollar exemption.
A 5% early-payment discount applies if paid within 3 months of death; the return and payment are otherwise due within 9 months.
Probate filings, estate administration, and guardianship matters are handled by the following office(s):
DEPARTMENT OF REAL ESTATE (RECORDER OF DEEDS)
542 Forbes Ave, Pittsburgh, PA 15219
(412) 350-4226
REGISTER OF WILLS
436 Grant St, Pittsburgh, PA 15219
(412) 350-4180
Public Safety & Arrests
Arrest records, inmate search, and law enforcement services are handled by the following office(s):
SHERIFF
436 Grant St, Pittsburgh, PA 15219
(412) 350-4700
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
DIVISION OF ELECTIONS
542 Forbes Ave, Pittsburgh, PA 15219
(412) 350-4500
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Health Department
542 Forbes Ave, Pittsburgh, PA 15219
(412) 578-8044
Department of Human Services
1 Smithfield St, Pittsburgh, PA 15222
(412) 350-5701
Public Health Information
PUBLIC HEALTH
Office: Allegheny County Health Department – Pittsburgh, PA
Services: Immunizations, WIC, environmental health, vital records; one of the few county-level health departments in Pennsylvania with its own independent authority
Editorial independence: CountyOffices maintains strict editorial independence from our affiliate partners. Our content is researched from official government sources. Affiliate relationships do not influence our recommendations or the information we publish.
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