Pennsylvania Population

New population projections produced by the Pennsylvania State Data Center reveal that the Keystone State’s 2010 Census population of 12.7 million is projected to grow to 14.1 million by the year 2040. This represents a growth rate of 11.3 percent or the addition of more than 1.4 million residents over the thirty year period.

The projections also suggest that the age makeup of Pennsylvania’s population will, on average, continue to grow older over the next three decades. The largest percentage increases will be seen in the 5-year age cohorts over age 65. Click here to read more about the projections in the PaSDC's latest Research Brief.

Population Projections were completed for the years 2015, 2020, 2025, 2030, 2035 and 2040 for the Commonwealth and its 67 counties. These projections were developed by five-year age cohorts and gender. Data users wishing to purchase PDF file profiles and excel data files of the PaSDC’s State and County Population Projections by Age and Gender, Pennsylvania: 2010 to 2040 can do so by visiting http://pasdc.hbg.psu.edu/, click on Data, then Projections.

2013 County Population Estimates Released by Census Bureau

Cumberland County is Pennsylvania’s fastest-growing since 2010

The U.S. Census Bureau reported today on where the heaviest population growth in Pennsylvania was concentrated last year. Cumberland County, in central Pennsylvania, was the fastest-growing county between April 1, 2010 and July 1, 2013. The population of Cumberland County rose 2.5 percent over the period. Chester County followed with a 2.1 percent gain since 2010. Lancaster County (2.0 percent percent) ranked third in terms of percent population increase, followed by Clinton and Philadelphia counties, which each grew at 1.8 percent during the period.

With respect to numerical growth, Philadelphia County added 27,159 people between 2010 and 2013, more than any other county in the state. It was followed by Montgomery County, which grew by 12,503 people, Chester (10,342), Lancaster (10,152) and Allegheny (8,179) rounded out the top five. 

View the 2013 County Population Estimates by visiting http://pasdc.hbg.psu.edu/, click on Data, then Estimates. From there, select the file name: Pennsylvania County Estimates: April 1, 2010 to July 1, 2013.

This information is based on annual population estimates for each of the nation’s counties since the 2010 Census and up to July 1, 2013. Internet tables are available showing rankings and components of population change (births, deaths, migration) from American FactFinder (http://factfinde2.census.gov).

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The Pennsylvania State Data Center (PaSDC) is the commonwealth's official source for population and economic statistics and is housed at Penn State Harrisburg within the Institute of State and Regional Affairs. The PaSDC also serves as Pennsylvania's liaison to the U.S. Department of Commerce's Bureau of the Census and as representative to the Federal State Cooperative Program for Population Estimates and Federal State Cooperative Program for Population Projections.

The PaSDC provides data products and services to business, academia, governments, non-profits and private citizens. Our products and services include: consultation of data availability and use, custom programming and reports, statistical mapping, research projects, technical training and workshops.

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The PaSDC hopes that you find these releases informative and useful. The PaSDC welcomes all comments and questions in regard to the information it disseminates. For more information about the Pennsylvania State Data Center and population and economic statistics about the Commonwealth of Pennsylvania, please visit our Web site at: PaSDC.hbg.psu.edu.

John R. Maurer

State Capital Office Coordinator

Pennsylvania State Data Center

Penn State Harrisburg

777 Harrisburg Pike

Middletown, PA 17057