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A Millennial migration to the suburbs? Don’t count on it. Philadelphia population ages 18-34 remains constant.

  • Millennial migration to urban centers over the past ten years is no secret, and Philadelphia has seen more than its fair share. Between 2005 and 2016, Philadelphia experienced the largest increase in 18-34 year olds of any of the 10 largest cities in the country. But what happens as Millennials continue to age into adulthood? Will they decamp for the surrounding suburbs? Will the number of young people in cities decline?

  • A comparative examination of the number of 18-34 year olds in Philadelphia in 2016 versus 2005 suggests that, while the Millennial growth rate in the city has softened, there is no evidence to suggest that 18-34 year olds are moving to the suburbs in droves. Beyond the fact that the 18-34 year old population is 41 percent higher in the city than it was in 2016, the growth in 18-34 year olds has softened in the suburbs as well. Delaware County has attracted the majority of Millennial growth, increasing 29 percent since 2005, but like Philadelphia, growth here has flattened as well.

  • Millennial migrations patterns are of significant importance to apartment developers but also office owners and occupiers, and the next few years should solidify where Millennials will take up permanent residence. ​

Source: JLL Research, U.S. Census Bureau​

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