Montgomery County Population Growth Counters Statewide Decade Trend of Migrations Out

Philadelphia collar county population changes
Image via Homeless Hub at Creative Commons.
Growth in the population rates of Philadelphia's collar counties offset sluggish gains in Pennsylvania's overall number of residents.

Pennsylvania’s population grew only by 2.4 percent over the past decade. But the migration of residents to parts elsewhere would have been even worse without counter-trends from the Philadelphia suburban population growth. Sarah Anne Hughes covered the shifts for Spotlight PA.

According to the U.S. Census Bureau data, the state population declined in 44 out of its 67 counties. Rural counties in western and northern Pennsylvania suffered the greatest hits.

Population data released by the U.S. Census Bureau shows which of Pennsylvania 67 counties gained and lost population between 2010 and 2020.
IMage via Spotlight PA.

Meanwhile, counties in southeast and south-central Pennsylvania recorded the highest gains.

Out of the Philadelphia collar counties, Montgomery County saw the highest positive population change of 56,679 people.

That represents an increase of 7.1 percent, significantly higher than the average in Pennsylvania.

This population change put it in second place of statewide resident upswings, behind only Philadelphia County.

Chester County is third overall with a population change of 35,527, which also represents an increase of 7.1 percent.

Bucks County ranked ninth overall with 21,289 new residents. Those new locals increased the county’s population by 3.4 percent.

Meanwhile, Delaware County ranked No. 11, with an increase in the population of 17,851 (3.2 percent).

Read more about Philadelphia suburban population growth in Spotlight PA.

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