Counties sending the most people to Contra Costa County, CA

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

#20. Yolo County, California
- Migration from Yolo County, California to Contra Costa County, California: 368
- Migration to Yolo County, California in 2015-2019: 704
- Net migration: 336 to Yolo County, California

#19. Middlesex County, New Jersey
- Migration from Middlesex County, New Jersey to Contra Costa County, California: 378
- Migration to Middlesex County, New Jersey in 2015-2019: 0
- Net migration: 378 to Contra Costa County, California

#18. Placer County, California
- Migration from Placer County, California to Contra Costa County, California: 403
- Migration to Placer County, California in 2015-2019: 572
- Net migration: 169 to Placer County, California

#17. Clark County, Nevada
- Migration from Clark County, Nevada to Contra Costa County, California: 421
- Migration to Clark County, Nevada in 2015-2019: 680
- Net migration: 259 to Clark County, Nevada

#16. Fresno County, California
- Migration from Fresno County, California to Contra Costa County, California: 426
- Migration to Fresno County, California in 2015-2019: 814
- Net migration: 388 to Fresno County, California

#15. Santa Cruz County, California
- Migration from Santa Cruz County, California to Contra Costa County, California: 440
- Migration to Santa Cruz County, California in 2015-2019: 565
- Net migration: 125 to Santa Cruz County, California

#14. Maricopa County, Arizona
- Migration from Maricopa County, Arizona to Contra Costa County, California: 493
- Migration to Maricopa County, Arizona in 2015-2019: 962
- Net migration: 469 to Maricopa County, Arizona

#13. Sonoma County, California
- Migration from Sonoma County, California to Contra Costa County, California: 677
- Migration to Sonoma County, California in 2015-2019: 540
- Net migration: 137 to Contra Costa County, California

#12. Marin County, California
- Migration from Marin County, California to Contra Costa County, California: 734
- Migration to Marin County, California in 2015-2019: 525
- Net migration: 209 to Contra Costa County, California

#11. San Diego County, California
- Migration from San Diego County, California to Contra Costa County, California: 738
- Migration to San Diego County, California in 2015-2019: 1,174
- Net migration: 436 to San Diego County, California

#10. Orange County, California
- Migration from Orange County, California to Contra Costa County, California: 744
- Migration to Orange County, California in 2015-2019: 686
- Net migration: 58 to Contra Costa County, California

#9. San Joaquin County, California
- Migration from San Joaquin County, California to Contra Costa County, California: 747
- Migration to San Joaquin County, California in 2015-2019: 2,171
- Net migration: 1,424 to San Joaquin County, California

#8. Sacramento County, California
- Migration from Sacramento County, California to Contra Costa County, California: 1,301
- Migration to Sacramento County, California in 2015-2019: 2,478
- Net migration: 1,177 to Sacramento County, California

#7. Butte County, California
- Migration from Butte County, California to Contra Costa County, California: 1,336
- Migration to Butte County, California in 2015-2019: 988
- Net migration: 348 to Contra Costa County, California

#6. Los Angeles County, California
- Migration from Los Angeles County, California to Contra Costa County, California: 2,273
- Migration to Los Angeles County, California in 2015-2019: 2,205
- Net migration: 68 to Contra Costa County, California

#5. Solano County, California
- Migration from Solano County, California to Contra Costa County, California: 2,435
- Migration to Solano County, California in 2015-2019: 4,409
- Net migration: 1,974 to Solano County, California

#4. San Mateo County, California
- Migration from San Mateo County, California to Contra Costa County, California: 3,067
- Migration to San Mateo County, California in 2015-2019: 1,614
- Net migration: 1,453 to Contra Costa County, California

#3. Santa Clara County, California
- Migration from Santa Clara County, California to Contra Costa County, California: 3,448
- Migration to Santa Clara County, California in 2015-2019: 1,762
- Net migration: 1,686 to Contra Costa County, California

#2. San Francisco County, California
- Migration from San Francisco County, California to Contra Costa County, California: 5,483
- Migration to San Francisco County, California in 2015-2019: 1,908
- Net migration: 3,575 to Contra Costa County, California

#1. Alameda County, California
- Migration from Alameda County, California to Contra Costa County, California: 18,007
- Migration to Alameda County, California in 2015-2019: 8,761
- Net migration: 9,246 to Contra Costa County, California