A new report shows the Pittsburgh region’s population decreased slightly in 2025, following a recent trend.
Christopher Briem, the regional economist who authored the UCSUR’s report, said the decline was mainly caused by natural population decline, which he said is hardly a new phenomenon for the region. Although the report shows increased migration into the region, it was outweighed by the region’s negative natural population change of nearly 8,000.
“The Pittsburgh region, in the 1990s, became the first large metropolitan area in the country to start to experience natural population decline — more deaths than births — and that’s been shaping population change here for what is now 30 years,” Briem said…