Counties sending the most people to Union County, PA

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

#20. Lehigh County, Pennsylvania
- Migration from Lehigh County, Pennsylvania to Union County, Pennsylvania: 50
- Migration to Lehigh County, Pennsylvania in 2015-2019: 7
- Net migration: 43 to Union County, Pennsylvania

#19. Bucks County, Pennsylvania
- Migration from Bucks County, Pennsylvania to Union County, Pennsylvania: 56
- Migration to Bucks County, Pennsylvania in 2015-2019: 0
- Net migration: 56 to Union County, Pennsylvania

#18. Howard County, Maryland
- Migration from Howard County, Maryland to Union County, Pennsylvania: 59
- Migration to Howard County, Maryland in 2015-2019: 0
- Net migration: 59 to Union County, Pennsylvania

#17. Morris County, New Jersey
- Migration from Morris County, New Jersey to Union County, Pennsylvania: 62
- Migration to Morris County, New Jersey in 2015-2019: 0
- Net migration: 62 to Union County, Pennsylvania

#16. New York County, New York
- Migration from New York County, New York to Union County, Pennsylvania: 63
- Migration to New York County, New York in 2015-2019: 57
- Net migration: 6 to Union County, Pennsylvania

#15. Richmond County, New York
- Migration from Richmond County, New York to Union County, Pennsylvania: 64
- Migration to Richmond County, New York in 2015-2019: 0
- Net migration: 64 to Union County, Pennsylvania

#14. Somerset County, Pennsylvania
- Migration from Somerset County, Pennsylvania to Union County, Pennsylvania: 73
- Migration to Somerset County, Pennsylvania in 2015-2019: 0
- Net migration: 73 to Union County, Pennsylvania

#13. Fairfield County, Connecticut
- Migration from Fairfield County, Connecticut to Union County, Pennsylvania: 77
- Migration to Fairfield County, Connecticut in 2015-2019: 0
- Net migration: 77 to Union County, Pennsylvania

#12. Dauphin County, Pennsylvania
- Migration from Dauphin County, Pennsylvania to Union County, Pennsylvania: 77
- Migration to Dauphin County, Pennsylvania in 2015-2019: 81
- Net migration: 4 to Dauphin County, Pennsylvania

#11. York County, Maine
- Migration from York County, Maine to Union County, Pennsylvania: 78
- Migration to York County, Maine in 2015-2019: 0
- Net migration: 78 to Union County, Pennsylvania

#10. Bronx County, New York
- Migration from Bronx County, New York to Union County, Pennsylvania: 78
- Migration to Bronx County, New York in 2015-2019: 14
- Net migration: 64 to Union County, Pennsylvania

#9. Vigo County, Indiana
- Migration from Vigo County, Indiana to Union County, Pennsylvania: 86
- Migration to Vigo County, Indiana in 2015-2019: 9
- Net migration: 77 to Union County, Pennsylvania

#8. Bradford County, Pennsylvania
- Migration from Bradford County, Pennsylvania to Union County, Pennsylvania: 100
- Migration to Bradford County, Pennsylvania in 2015-2019: 3
- Net migration: 97 to Union County, Pennsylvania

#7. Burlington County, New Jersey
- Migration from Burlington County, New Jersey to Union County, Pennsylvania: 102
- Migration to Burlington County, New Jersey in 2015-2019: 0
- Net migration: 102 to Union County, Pennsylvania

#6. Columbia County, Pennsylvania
- Migration from Columbia County, Pennsylvania to Union County, Pennsylvania: 120
- Migration to Columbia County, Pennsylvania in 2015-2019: 38
- Net migration: 82 to Union County, Pennsylvania

#5. Baltimore County, Maryland
- Migration from Baltimore County, Maryland to Union County, Pennsylvania: 126
- Migration to Baltimore County, Maryland in 2015-2019: 0
- Net migration: 126 to Union County, Pennsylvania

#4. Centre County, Pennsylvania
- Migration from Centre County, Pennsylvania to Union County, Pennsylvania: 134
- Migration to Centre County, Pennsylvania in 2015-2019: 9
- Net migration: 125 to Union County, Pennsylvania

#3. Philadelphia County, Pennsylvania
- Migration from Philadelphia County, Pennsylvania to Union County, Pennsylvania: 161
- Migration to Philadelphia County, Pennsylvania in 2015-2019: 134
- Net migration: 27 to Union County, Pennsylvania

#2. Snyder County, Pennsylvania
- Migration from Snyder County, Pennsylvania to Union County, Pennsylvania: 195
- Migration to Snyder County, Pennsylvania in 2015-2019: 178
- Net migration: 17 to Union County, Pennsylvania

#1. Northumberland County, Pennsylvania
- Migration from Northumberland County, Pennsylvania to Union County, Pennsylvania: 221
- Migration to Northumberland County, Pennsylvania in 2015-2019: 240
- Net migration: 19 to Northumberland County, Pennsylvania