Counties sending the most people to Philadelphia County, PA

Stacker compiled a list of counties sending the most people to Philadelphia County, Pennsylvania using data from the U.S. Census Bureau. Counties and county equivalents are ranked by the estimated number of people who moved to Philadelphia County, PA from the county between 2015 and 2019. Ties were broken by gross migration.

#20. Bronx County, New York
- Migration from Bronx County, New York to Philadelphia County, Pennsylvania: 616
- Migration to Bronx County, New York in 2015-2019: 257
- Net migration: 359 to Philadelphia County, Pennsylvania

#19. Mercer County, New Jersey
- Migration from Mercer County, New Jersey to Philadelphia County, Pennsylvania: 665
- Migration to Mercer County, New Jersey in 2015-2019: 263
- Net migration: 402 to Philadelphia County, Pennsylvania

#18. Lancaster County, Pennsylvania
- Migration from Lancaster County, Pennsylvania to Philadelphia County, Pennsylvania: 665
- Migration to Lancaster County, Pennsylvania in 2015-2019: 689
- Net migration: 24 to Lancaster County, Pennsylvania

#17. Gloucester County, New Jersey
- Migration from Gloucester County, New Jersey to Philadelphia County, Pennsylvania: 671
- Migration to Gloucester County, New Jersey in 2015-2019: 999
- Net migration: 328 to Gloucester County, New Jersey

#16. Baltimore city, Maryland
- Migration from Baltimore city, Maryland to Philadelphia County, Pennsylvania: 687
- Migration to Baltimore city, Maryland in 2015-2019: 601
- Net migration: 86 to Philadelphia County, Pennsylvania

#15. Washington, D.C.
- Migration from Washington, D.C. to Philadelphia County, Pennsylvania: 720
- Migration to Washington, D.C. in 2015-2019: 538
- Net migration: 182 to Philadelphia County, Pennsylvania

#14. Allegheny County, Pennsylvania
- Migration from Allegheny County, Pennsylvania to Philadelphia County, Pennsylvania: 760
- Migration to Allegheny County, Pennsylvania in 2015-2019: 729
- Net migration: 31 to Philadelphia County, Pennsylvania

#13. Suffolk County, Massachusetts
- Migration from Suffolk County, Massachusetts to Philadelphia County, Pennsylvania: 764
- Migration to Suffolk County, Massachusetts in 2015-2019: 612
- Net migration: 152 to Philadelphia County, Pennsylvania

#12. New Castle County, Delaware
- Migration from New Castle County, Delaware to Philadelphia County, Pennsylvania: 897
- Migration to New Castle County, Delaware in 2015-2019: 1,912
- Net migration: 1,015 to New Castle County, Delaware

#11. Queens County, New York
- Migration from Queens County, New York to Philadelphia County, Pennsylvania: 899
- Migration to Queens County, New York in 2015-2019: 278
- Net migration: 621 to Philadelphia County, Pennsylvania

#10. Northampton County, Pennsylvania
- Migration from Northampton County, Pennsylvania to Philadelphia County, Pennsylvania: 996
- Migration to Northampton County, Pennsylvania in 2015-2019: 418
- Net migration: 578 to Philadelphia County, Pennsylvania

#9. Lehigh County, Pennsylvania
- Migration from Lehigh County, Pennsylvania to Philadelphia County, Pennsylvania: 1,017
- Migration to Lehigh County, Pennsylvania in 2015-2019: 705
- Net migration: 312 to Philadelphia County, Pennsylvania

#8. New York County, New York
- Migration from New York County, New York to Philadelphia County, Pennsylvania: 1,427
- Migration to New York County, New York in 2015-2019: 1,728
- Net migration: 301 to New York County, New York

#7. Burlington County, New Jersey
- Migration from Burlington County, New Jersey to Philadelphia County, Pennsylvania: 1,780
- Migration to Burlington County, New Jersey in 2015-2019: 1,186
- Net migration: 594 to Philadelphia County, Pennsylvania

#6. Kings County, New York
- Migration from Kings County, New York to Philadelphia County, Pennsylvania: 1,905
- Migration to Kings County, New York in 2015-2019: 677
- Net migration: 1,228 to Philadelphia County, Pennsylvania

#5. Chester County, Pennsylvania
- Migration from Chester County, Pennsylvania to Philadelphia County, Pennsylvania: 2,065
- Migration to Chester County, Pennsylvania in 2015-2019: 2,413
- Net migration: 348 to Chester County, Pennsylvania

#4. Camden County, New Jersey
- Migration from Camden County, New Jersey to Philadelphia County, Pennsylvania: 2,773
- Migration to Camden County, New Jersey in 2015-2019: 2,868
- Net migration: 95 to Camden County, New Jersey

#3. Bucks County, Pennsylvania
- Migration from Bucks County, Pennsylvania to Philadelphia County, Pennsylvania: 4,274
- Migration to Bucks County, Pennsylvania in 2015-2019: 6,181
- Net migration: 1,907 to Bucks County, Pennsylvania

#2. Delaware County, Pennsylvania
- Migration from Delaware County, Pennsylvania to Philadelphia County, Pennsylvania: 5,806
- Migration to Delaware County, Pennsylvania in 2015-2019: 7,913
- Net migration: 2,107 to Delaware County, Pennsylvania

#1. Montgomery County, Pennsylvania
- Migration from Montgomery County, Pennsylvania to Philadelphia County, Pennsylvania: 7,111
- Migration to Montgomery County, Pennsylvania in 2015-2019: 9,986
- Net migration: 2,875 to Montgomery County, Pennsylvania