Counties sending the most people to St. Louis County, MO

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

#20. Sangamon County, Illinois
- Migration from Sangamon County, Illinois to St. Louis County, Missouri: 302
- Migration to Sangamon County, Illinois in 2015-2019: 110
- Net migration: 192 to St. Louis County, Missouri

#19. Champaign County, Illinois
- Migration from Champaign County, Illinois to St. Louis County, Missouri: 303
- Migration to Champaign County, Illinois in 2015-2019: 27
- Net migration: 276 to St. Louis County, Missouri

#18. Collin County, Texas
- Migration from Collin County, Texas to St. Louis County, Missouri: 341
- Migration to Collin County, Texas in 2015-2019: 74
- Net migration: 267 to St. Louis County, Missouri

#17. St. Francois County, Missouri
- Migration from St. Francois County, Missouri to St. Louis County, Missouri: 342
- Migration to St. Francois County, Missouri in 2015-2019: 463
- Net migration: 121 to St. Francois County, Missouri

#16. Clark County, Nevada
- Migration from Clark County, Nevada to St. Louis County, Missouri: 377
- Migration to Clark County, Nevada in 2015-2019: 71
- Net migration: 306 to St. Louis County, Missouri

#15. Los Angeles County, California
- Migration from Los Angeles County, California to St. Louis County, Missouri: 380
- Migration to Los Angeles County, California in 2015-2019: 333
- Net migration: 47 to St. Louis County, Missouri

#14. Fulton County, Georgia
- Migration from Fulton County, Georgia to St. Louis County, Missouri: 397
- Migration to Fulton County, Georgia in 2015-2019: 178
- Net migration: 219 to St. Louis County, Missouri

#13. Jackson County, Missouri
- Migration from Jackson County, Missouri to St. Louis County, Missouri: 397
- Migration to Jackson County, Missouri in 2015-2019: 681
- Net migration: 284 to Jackson County, Missouri

#12. Harris County, Texas
- Migration from Harris County, Texas to St. Louis County, Missouri: 445
- Migration to Harris County, Texas in 2015-2019: 816
- Net migration: 371 to Harris County, Texas

#11. Phelps County, Missouri
- Migration from Phelps County, Missouri to St. Louis County, Missouri: 447
- Migration to Phelps County, Missouri in 2015-2019: 550
- Net migration: 103 to Phelps County, Missouri

#10. Greene County, Missouri
- Migration from Greene County, Missouri to St. Louis County, Missouri: 481
- Migration to Greene County, Missouri in 2015-2019: 751
- Net migration: 270 to Greene County, Missouri

#9. Madison County, Illinois
- Migration from Madison County, Illinois to St. Louis County, Missouri: 620
- Migration to Madison County, Illinois in 2015-2019: 1,305
- Net migration: 685 to Madison County, Illinois

#8. Dallas County, Texas
- Migration from Dallas County, Texas to St. Louis County, Missouri: 644
- Migration to Dallas County, Texas in 2015-2019: 184
- Net migration: 460 to St. Louis County, Missouri

#7. Cook County, Illinois
- Migration from Cook County, Illinois to St. Louis County, Missouri: 798
- Migration to Cook County, Illinois in 2015-2019: 855
- Net migration: 57 to Cook County, Illinois

#6. Boone County, Missouri
- Migration from Boone County, Missouri to St. Louis County, Missouri: 897
- Migration to Boone County, Missouri in 2015-2019: 1,280
- Net migration: 383 to Boone County, Missouri

#5. Franklin County, Missouri
- Migration from Franklin County, Missouri to St. Louis County, Missouri: 925
- Migration to Franklin County, Missouri in 2015-2019: 991
- Net migration: 66 to Franklin County, Missouri

#4. St. Clair County, Illinois
- Migration from St. Clair County, Illinois to St. Louis County, Missouri: 2,016
- Migration to St. Clair County, Illinois in 2015-2019: 971
- Net migration: 1,045 to St. Louis County, Missouri

#3. Jefferson County, Missouri
- Migration from Jefferson County, Missouri to St. Louis County, Missouri: 4,498
- Migration to Jefferson County, Missouri in 2015-2019: 4,840
- Net migration: 342 to Jefferson County, Missouri

#2. St. Charles County, Missouri
- Migration from St. Charles County, Missouri to St. Louis County, Missouri: 5,060
- Migration to St. Charles County, Missouri in 2015-2019: 6,359
- Net migration: 1,299 to St. Charles County, Missouri

#1. St. Louis city, Missouri
- Migration from St. Louis city, Missouri to St. Louis County, Missouri: 14,232
- Migration to St. Louis city, Missouri in 2015-2019: 9,641
- Net migration: 4,591 to St. Louis County, Missouri