Counties sending the most people to Jefferson County, CO

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

#20. King County, Washington
- Migration from King County, Washington to Jefferson County, Colorado: 247
- Migration to King County, Washington in 2015-2019: 144
- Net migration: 103 to Jefferson County, Colorado

#19. Orange County, California
- Migration from Orange County, California to Jefferson County, Colorado: 248
- Migration to Orange County, California in 2015-2019: 33
- Net migration: 215 to Jefferson County, Colorado

#18. Pueblo County, Colorado
- Migration from Pueblo County, Colorado to Jefferson County, Colorado: 257
- Migration to Pueblo County, Colorado in 2015-2019: 244
- Net migration: 13 to Jefferson County, Colorado

#17. Park County, Colorado
- Migration from Park County, Colorado to Jefferson County, Colorado: 257
- Migration to Park County, Colorado in 2015-2019: 357
- Net migration: 100 to Park County, Colorado

#16. Lancaster County, Nebraska
- Migration from Lancaster County, Nebraska to Jefferson County, Colorado: 273
- Migration to Lancaster County, Nebraska in 2015-2019: 41
- Net migration: 232 to Jefferson County, Colorado

#15. Clark County, Nevada
- Migration from Clark County, Nevada to Jefferson County, Colorado: 282
- Migration to Clark County, Nevada in 2015-2019: 541
- Net migration: 259 to Clark County, Nevada

#14. Harris County, Texas
- Migration from Harris County, Texas to Jefferson County, Colorado: 377
- Migration to Harris County, Texas in 2015-2019: 246
- Net migration: 131 to Jefferson County, Colorado

#13. Maricopa County, Arizona
- Migration from Maricopa County, Arizona to Jefferson County, Colorado: 382
- Migration to Maricopa County, Arizona in 2015-2019: 385
- Net migration: 3 to Maricopa County, Arizona

#12. San Diego County, California
- Migration from San Diego County, California to Jefferson County, Colorado: 417
- Migration to San Diego County, California in 2015-2019: 148
- Net migration: 269 to Jefferson County, Colorado

#11. Los Angeles County, California
- Migration from Los Angeles County, California to Jefferson County, Colorado: 465
- Migration to Los Angeles County, California in 2015-2019: 396
- Net migration: 69 to Jefferson County, Colorado

#10. Cook County, Illinois
- Migration from Cook County, Illinois to Jefferson County, Colorado: 490
- Migration to Cook County, Illinois in 2015-2019: 77
- Net migration: 413 to Jefferson County, Colorado

#9. Weld County, Colorado
- Migration from Weld County, Colorado to Jefferson County, Colorado: 552
- Migration to Weld County, Colorado in 2015-2019: 1,495
- Net migration: 943 to Weld County, Colorado

#8. Larimer County, Colorado
- Migration from Larimer County, Colorado to Jefferson County, Colorado: 980
- Migration to Larimer County, Colorado in 2015-2019: 2,180
- Net migration: 1,200 to Larimer County, Colorado

#7. Broomfield County, Colorado
- Migration from Broomfield County, Colorado to Jefferson County, Colorado: 998
- Migration to Broomfield County, Colorado in 2015-2019: 1,016
- Net migration: 18 to Broomfield County, Colorado

#6. Douglas County, Colorado
- Migration from Douglas County, Colorado to Jefferson County, Colorado: 1,354
- Migration to Douglas County, Colorado in 2015-2019: 2,059
- Net migration: 705 to Douglas County, Colorado

#5. El Paso County, Colorado
- Migration from El Paso County, Colorado to Jefferson County, Colorado: 1,648
- Migration to El Paso County, Colorado in 2015-2019: 1,142
- Net migration: 506 to Jefferson County, Colorado

#4. Boulder County, Colorado
- Migration from Boulder County, Colorado to Jefferson County, Colorado: 2,329
- Migration to Boulder County, Colorado in 2015-2019: 1,815
- Net migration: 514 to Jefferson County, Colorado

#3. Arapahoe County, Colorado
- Migration from Arapahoe County, Colorado to Jefferson County, Colorado: 3,853
- Migration to Arapahoe County, Colorado in 2015-2019: 4,283
- Net migration: 430 to Arapahoe County, Colorado

#2. Adams County, Colorado
- Migration from Adams County, Colorado to Jefferson County, Colorado: 4,108
- Migration to Adams County, Colorado in 2015-2019: 6,344
- Net migration: 2,236 to Adams County, Colorado

#1. Denver County, Colorado
- Migration from Denver County, Colorado to Jefferson County, Colorado: 12,459
- Migration to Denver County, Colorado in 2015-2019: 8,872
- Net migration: 3,587 to Jefferson County, Colorado