Counties sending the most people to Allegheny County, PA

Stacker compiled a list of counties sending the most people to Allegheny 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 Allegheny County, PA from the county between 2015 and 2019. Ties were broken by gross migration.

#20. Montgomery County, Maryland
- Migration from Montgomery County, Maryland to Allegheny County, Pennsylvania: 419
- Migration to Montgomery County, Maryland in 2015-2019: 498
- Net migration: 79 to Montgomery County, Maryland

#19. Monroe County, New York
- Migration from Monroe County, New York to Allegheny County, Pennsylvania: 426
- Migration to Monroe County, New York in 2015-2019: 239
- Net migration: 187 to Allegheny County, Pennsylvania

#18. Monongalia County, West Virginia
- Migration from Monongalia County, West Virginia to Allegheny County, Pennsylvania: 429
- Migration to Monongalia County, West Virginia in 2015-2019: 199
- Net migration: 230 to Allegheny County, Pennsylvania

#17. Fairfax County, Virginia
- Migration from Fairfax County, Virginia to Allegheny County, Pennsylvania: 434
- Migration to Fairfax County, Virginia in 2015-2019: 239
- Net migration: 195 to Allegheny County, Pennsylvania

#16. Lancaster County, Pennsylvania
- Migration from Lancaster County, Pennsylvania to Allegheny County, Pennsylvania: 445
- Migration to Lancaster County, Pennsylvania in 2015-2019: 312
- Net migration: 133 to Allegheny County, Pennsylvania

#15. Bucks County, Pennsylvania
- Migration from Bucks County, Pennsylvania to Allegheny County, Pennsylvania: 450
- Migration to Bucks County, Pennsylvania in 2015-2019: 341
- Net migration: 109 to Allegheny County, Pennsylvania

#14. Chester County, Pennsylvania
- Migration from Chester County, Pennsylvania to Allegheny County, Pennsylvania: 494
- Migration to Chester County, Pennsylvania in 2015-2019: 421
- Net migration: 73 to Allegheny County, Pennsylvania

#13. Cook County, Illinois
- Migration from Cook County, Illinois to Allegheny County, Pennsylvania: 516
- Migration to Cook County, Illinois in 2015-2019: 606
- Net migration: 90 to Cook County, Illinois

#12. Franklin County, Ohio
- Migration from Franklin County, Ohio to Allegheny County, Pennsylvania: 566
- Migration to Franklin County, Ohio in 2015-2019: 510
- Net migration: 56 to Allegheny County, Pennsylvania

#11. Mercer County, Pennsylvania
- Migration from Mercer County, Pennsylvania to Allegheny County, Pennsylvania: 578
- Migration to Mercer County, Pennsylvania in 2015-2019: 417
- Net migration: 161 to Allegheny County, Pennsylvania

#10. Cumberland County, Pennsylvania
- Migration from Cumberland County, Pennsylvania to Allegheny County, Pennsylvania: 599
- Migration to Cumberland County, Pennsylvania in 2015-2019: 372
- Net migration: 227 to Allegheny County, Pennsylvania

#9. Adams County, Pennsylvania
- Migration from Adams County, Pennsylvania to Allegheny County, Pennsylvania: 622
- Migration to Adams County, Pennsylvania in 2015-2019: 251
- Net migration: 371 to Allegheny County, Pennsylvania

#8. Montgomery County, Pennsylvania
- Migration from Montgomery County, Pennsylvania to Allegheny County, Pennsylvania: 631
- Migration to Montgomery County, Pennsylvania in 2015-2019: 319
- Net migration: 312 to Allegheny County, Pennsylvania

#7. Erie County, Pennsylvania
- Migration from Erie County, Pennsylvania to Allegheny County, Pennsylvania: 681
- Migration to Erie County, Pennsylvania in 2015-2019: 1,090
- Net migration: 409 to Erie County, Pennsylvania

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

#5. Fayette County, Pennsylvania
- Migration from Fayette County, Pennsylvania to Allegheny County, Pennsylvania: 822
- Migration to Fayette County, Pennsylvania in 2015-2019: 379
- Net migration: 443 to Allegheny County, Pennsylvania

#4. Butler County, Pennsylvania
- Migration from Butler County, Pennsylvania to Allegheny County, Pennsylvania: 1,516
- Migration to Butler County, Pennsylvania in 2015-2019: 2,676
- Net migration: 1,160 to Butler County, Pennsylvania

#3. Beaver County, Pennsylvania
- Migration from Beaver County, Pennsylvania to Allegheny County, Pennsylvania: 1,683
- Migration to Beaver County, Pennsylvania in 2015-2019: 2,374
- Net migration: 691 to Beaver County, Pennsylvania

#2. Washington County, Pennsylvania
- Migration from Washington County, Pennsylvania to Allegheny County, Pennsylvania: 2,366
- Migration to Washington County, Pennsylvania in 2015-2019: 3,202
- Net migration: 836 to Washington County, Pennsylvania

#1. Westmoreland County, Pennsylvania
- Migration from Westmoreland County, Pennsylvania to Allegheny County, Pennsylvania: 4,116
- Migration to Westmoreland County, Pennsylvania in 2015-2019: 3,981
- Net migration: 135 to Allegheny County, Pennsylvania