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Pennsylvania population by year, 1990 to 2025

Pennsylvania reached a record 13.06 million in 2025 and regained 5th place from Illinois after being 6th in 2000 and 2010.

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What the data shows

  • Pennsylvania: 11.90M in 1990, 13.06M in 2025.

About this chart

Pennsylvania has traded places with Illinois. It ranked 5th among the 50 states in 1990, fell to 6th in 2000 and 2010, and is back to 5th in 2025 with 13,059,432 residents, while Illinois, which peaked in 2013, is now 6th. The 2025 figure is the highest in the series.

Growth is slow: 9.8 percent since 1990, 6.3 percent since 2000 and 2.7 percent since 2010. Pennsylvania's estimate was nearly flat in the 1990s, edging down from 12.04 million in 1995 to 11.99 million in 1999. It then grew by about 64,000 between 2020 and 2025. The data are Census Bureau resident estimates for July 1.

The data

Source: U.S. Census Bureau population estimates, July 1 (vintages 1999, 2000–2010 intercensal, 2020 and 2025), resident population of Pennsylvania, millions. Retrieved November 4, 2026.

Population of Pennsylvania, Residents, 1990 to 2025, 1990–2025
DatePennsylvania
199011.90M
199111.94M
199211.98M
199312.02M
199412.04M
199512.05M
199612.04M
199712.02M
199812.00M
199911.99M
200012.28M
200112.30M
200212.33M
200312.38M
200412.41M
200512.45M
200612.51M
200712.56M
200812.61M
200912.67M
201012.71M
201112.75M
201212.77M
201312.78M
201412.79M
201512.79M
201612.79M
201712.80M
201812.81M
201912.80M
202013.00M
202113.02M
202212.99M
202313.01M
202413.05M
202513.06M

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Frequently asked questions

What is the population of Pennsylvania?

Pennsylvania had about 13.06 million residents (13,059,432) in July 2025, according to Census Bureau estimates. That ranks 5th among the 50 states.

Did Pennsylvania pass Illinois?

Yes. Pennsylvania was 5th in 1990, 6th in 2000 and 2010, and is 5th again in 2025 at 13.06 million. Illinois is 6th at 12.72 million.

How fast is Pennsylvania growing?

Slowly. Pennsylvania is up 6.3 percent since 2000 and 2.7 percent since 2010, with about 64,000 residents added from 2020 to 2025.

Where does this data come from?

U.S. Census Bureau population estimates, July 1 (vintages 1999, 2000–2010 intercensal, 2020 and 2025), resident population of Pennsylvania, millions. Retrieved November 4, 2026. You can download the full table as a CSV from this page.

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