Largest Cities in Pennsylvania (2020 Census)

Based on the 2020 U.S. Census, the most populous cities in Pennsylvania are:

1. Philadelphia: 1,608,160 (6th largest in US)
2. Pittsburgh: 302,407
3. Allentown: 125,841
4. Erie: 94,826
5. Reading: 88,082
6. Scranton: 76,328
7. Bethlehem: 75,514
8. Lancaster: 60,000 (approx.)
9. Harrisburg: 49,229 (state capital)

Notes

• Philadelphia dominates—over 5x larger than Pittsburgh.
• Pittsburgh metro area (2.37M) is larger than its city proper due to fragmented municipalities.
• Allentown is the fastest-growing major city in PA.
• Harrisburg, the capital, ranks only 9th in city population but anchors a metro of ~600k.