Philadelphia is now the seventh most populous metro area in the country due to a slow annual growth rate compared to faster-moving cities.
That's according to new numbers released today by the U.S. Census Bureau, which found that Washington knocked Philly down from sixth place to seventh this year. In 2015, Washington's population was 6,097,684—Philly's was 6,069,875.
From July 1, 2014 to July 1, 2015, Philadelphia experienced a total population change of 5,880. Compare that to the DC metro region, which increased its population by 63,793 in one year.
The numbers may sound bleak, but it doesn't mean Philly's shrinking. It's just growing at a much slower rate than other regions like Washington or Miami. The Philadelphia Inquirer points out that at the very least, the city's slow growth rate is offset by the influx of internationals moving to the region. About 10,000 immigrants moved to Philly from 2014 to 2015—that's about the same amount of domestics who left the area.
The New York metro region is the most populous in the nation, followed by LA, Chicago, Dallas, Houston, Washington, and Philly.
You can find all of the data via the bureau's American Fact Finder database.