Allegheny County, PA population between 2000 and 2023
Over the last 20 plus years, between 2000 and 2023, population of Allegheny County decreased by 55,235. In this period, the peak population was 1.28 million in the year 2000. The numbers suggest that the population has already reached its peak and is showing a trend of decline.
| Year | Population | Year on Year Change | Change in Percent |
|---|---|---|---|
| 2000 | 1,280,060 | - | - |
| 2001 | 1,273,791 | -6,269 | -0.49% |
| 2002 | 1,267,679 | -6,112 | -0.48% |
| 2003 | 1,261,092 | -6,587 | -0.52% |
| 2004 | 1,250,734 | -10,358 | -0.82% |
| 2005 | 1,238,300 | -12,434 | -0.99% |
| 2006 | 1,229,542 | -8,758 | -0.71% |
| 2007 | 1,226,101 | -3,441 | -0.28% |
| 2008 | 1,224,542 | -1,559 | -0.13% |
| 2009 | 1,225,358 | 816 | 0.07% |
| 2010 | 1,223,973 | -1,385 | -0.11% |
| 2011 | 1,228,437 | 4,464 | 0.36% |
| 2012 | 1,231,129 | 2,692 | 0.22% |
| 2013 | 1,233,999 | 2,870 | 0.23% |
| 2014 | 1,233,417 | -582 | -0.05% |
| 2015 | 1,229,342 | -4,075 | -0.33% |
| 2016 | 1,226,893 | -2,449 | -0.20% |
| 2017 | 1,220,423 | -6,470 | -0.53% |
| 2018 | 1,217,508 | -2,915 | -0.24% |
| 2019 | 1,215,716 | -1,792 | -0.15% |
| 2020 | 1,249,565 | 33,849 | 2.78% |
| 2021 | 1,245,220 | -4,345 | -0.35% |
| 2022 | 1,232,605 | -12,615 | -1.01% |
| 2023 | 1,224,825 | -7,780 | -0.63% |
TABLE OF CONTENTS
Allegheny County, PA population from 2000 to 2023
From 2000 to 2010, Allegheny County's population decreased by 56,087 (4.38%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 9.63%.
From 2010 to 2020, Allegheny County's population increased by 25,592 (2.09%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.18% .
After the COVID19 pandemic and, between the year 2020 and 2023, Allegheny County's population decreased by 24,740 (1.98%).For the same period, the rate of growth for the United States was 1.02%.
FIGURE 1
Allegheny County's population from 2000 to 2023.
The estimated population at the end of 2023 was 1.22 million.
Between the year 2000 and 2023, Allegheny County's population peaked in year 2000 at 1.28 million.
Between the year 2000 and 2023, Allegheny County's population was lowest in year 2019 at 1.22 million.
Allegheny County, PA annual population growth rate
Between the years 2000 and 2023, i.e. 23 annual cycles, the population of Allegheny County grew year by year for 5 years and declined for 18 years.
From 2000 to 2023, Allegheny County had an average annual population growth rate of 0.19% per year. Overall the population shrank 4.32% between 2000 and 2023.
FIGURE 2
Allegheny County annual population growth rate
The average annual growth rate from 2000 to 2023 was 0.19% per year.
From 2019 to 2020 Allegheny County population grew the most, with an increase of 33,849 people (a 2.78% year-on-year increase)..
From 2021 to 2022 Allegheny County population experienced the most significant decrease, with a decline of 12,615 people (a 1.01% year-on-year decline).
Things to know
Is Allegheny County, PA population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, Allegheny County's population decreased by 20,395 between 2021 and 2023. The decrease was 12,615 (increased) between 2021 and 2022; and decrease of 7,780 (0.63%) between 2022 and 2023.
How has the population of Allegheny County, PA changed in the last 10 years?
Between 2013 and 2023, population of Allegheny County decreased by 9,174 (0.74%). The population was highest at 1.25 million in the year 2020 and lowest at 1.22 million in the year 2019. Overall the average growth rate witnessed for the last 10 years was -0.07%.
References
- US Census Bureau Population Estimates Population Estimates Program (PEP)