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Allegheny County, PA: population growth, jobs and income

Allegheny County lost 2,139 residents between 2024 and 2025 (−0.2%).

Allegheny County had an estimated 1,225,035 residents in 2025, down 2.0% (24,550 fewer people) since 2020. That is slower than Pennsylvania as a whole (+0.5%), and the 48th fastest growth of 67 counties in Pennsylvania.

Data as of 2025 · updated

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In the Allegheny County report

One-time $99 PDF: everything on this page for Allegheny County, ranked against Pennsylvania and the U.S., plus these figures that are not on the free page:

  • Median gross rent$1,153/mo2020–24
  • Vacant homes, incl. seasonal and second homes10.1%2020–24
  • New homes permitted, last 12 months3,4332025-10/2026-09
  • Rent growth, 5 yearsIn the report
  • Permits in 5+ unit buildingsIn the report
  • IRS income moving in (net AGI)In the report
  • Neighbouring-county comparison tableIn the report

What's inside: 5 pages

  1. 1 Summary, headline numbers and ranks (free preview)
  2. 2 Ranks and the neighbouring-county table
  3. 3 Migration, with IRS mover and income flows
  4. 4 Rent, vacant homes, permits and employers
  5. 5 Every source and the methods
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Headline numbers

What the numbers say

Net domestic migration was negative in 2025: 2,785 more people moved out to other U.S. counties than moved in.

Private employers had 709,774 paid employees in mid-March 2023, +0.6% since 2018 (County Business Patterns).

Unemployment averaged 4.0% in 2025.

Builders were authorized to start 3,191 new homes in 2025, or 2.6 per 1,000 residents.

Median household income was $78,548 in the 2020–24 American Community Survey, +26.0% since 2016–20.

Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,449th.

Part of the Pittsburgh, PA metro area.

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Allegheny County population by year

Resident population, July 1 estimate (Census Bureau)
YearPopulationChange
20251,225,035−2,139
20241,227,174−1,737
20231,228,911−4,414
20221,233,325−12,010
20211,245,335−4,250
20201,249,585–

Census Bureau population estimates, July 1 of each year.

What drove the change in Allegheny County

Allegheny County lost 24,550 people since 2020; the biggest drag was domestic migration (−31,483).

Components of population change, people (Census Bureau)
Component20252020–25Share
Natural changebirths minus deaths−1,922−12,510
International migrationfrom and to other countries+2,485+18,601
Domestic migrationfrom and to other U.S. counties−2,785−31,483
Census adjustmentbalancing residual+83+842
Total change−2,139−24,550

Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.

How it ranks

MeasureIn PennsylvaniaAmong U.S. counties
Population growth48th of 672,449th of 3,107
Net domestic migration per 1,000 residents56th of 672,262nd of 3,108
Private-sector job growth31st of 671,788th of 3,092
Median household income17th of 67642nd of 3,107
Lowest unemployment rate14th of 671,587th of 3,108
New homes permitted per 1,000 residents12th of 671,271st of 3,005

1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.

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The County Growth and Demographics Report for Allegheny County, PA as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.

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Neighbouring counties

Allegheny County lost population faster than all 4 of its neighbouring counties (−2.0%, 2020–25).

2 of its 4 neighbouring counties had a higher median household income than Allegheny County's $78,548 (2020–24).

Allegheny County, PA and its 4 neighbouring counties: public federal figures
CountyPopulation2025Population change2020–25Net domestic migration per 1,000 residents2025Homes permitted per 1,000 residents2025Median household income2020–24
Allegheny County, PA This county1,225,035−2.0%−2.32.6$78,548
Washington County, PA210,802+0.7%4.11.7$78,958
Beaver County, PA166,032−1.1%5.81.7$71,089
Butler County, PA200,169+3.2%6.06.2$89,843
Westmoreland County, PA349,324−1.4%1.81.2$74,109

Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.

All 67 Pennsylvania counties · Every state

Questions

Is Allegheny County growing?

No. Its population fell 2.0% between 2020 and 2025, about 24,550 fewer people (Census Bureau population estimates). Pennsylvania as a whole changed +0.5% over the same years. That ranks 48th of 67 counties in Pennsylvania for population growth.

How many people moved to Allegheny County?

On net, none in 2025: about 2,785 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).

What is the unemployment rate in Allegheny County?

It averaged 4.0% in 2025 (BLS Local Area Unemployment Statistics, annual average).

What is the population of Allegheny County?

About 1,225,035 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.

How many jobs are in Allegheny County?

Private employers there had 709,774 paid employees in mid-March 2023, +0.6% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).

What Beacon CRE covers in Pennsylvania

Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Pennsylvania county pages carry the public federal growth figures.

Allegheny County data alerts

Email me when Allegheny County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.

We use your address only to email you when new data for Allegheny County is out: what changed, with a link to that county's report. No newsletter, no other sales emails. Delete it any time with the link in every email. We'll email you a link to confirm first; nothing starts until you click it. Privacy notice.

Sources and method

Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.

Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.