California county-to-county migration
58 California counties. Top 10 origin and destination counties for each. Census ACS 2020 5-yr migration flows.
Frozen vintage. The Census Bureau has not released a newer county-to-county migration flows file. The 2020 5-yr vintage (covering 2016-2020) is the latest available as of build date.
Counties (by population)
- Los Angeles County pop. 9,848,406
- San Diego County pop. 3,282,782
- Orange County pop. 3,164,063
- Riverside County pop. 2,449,909
- San Bernardino County pop. 2,187,816
- Santa Clara County pop. 1,903,297
- Alameda County pop. 1,651,949
- Sacramento County pop. 1,584,047
- Contra Costa County pop. 1,161,458
- Fresno County pop. 1,012,152
- Kern County pop. 910,433
- Ventura County pop. 838,259
- San Francisco County pop. 836,321
- San Joaquin County pop. 787,416
- San Mateo County pop. 745,100
- Stanislaus County pop. 552,250
- Sonoma County pop. 485,642
- Tulare County pop. 475,774
- Solano County pop. 450,824
- Santa Barbara County pop. 443,975
- Monterey County pop. 435,834
- Placer County pop. 412,435
- Merced County pop. 285,597
- San Luis Obispo County pop. 281,486
- Santa Cruz County pop. 266,021
- Marin County pop. 258,765
- Yolo County pop. 217,782
- Butte County pop. 209,470
- El Dorado County pop. 192,299
- Shasta County pop. 181,554
- Imperial County pop. 179,319
- Madera County pop. 158,790
- Kings County pop. 152,830
- Napa County pop. 136,070
- Humboldt County pop. 135,418
- Nevada County pop. 102,452
- Sutter County pop. 98,971
- Mendocino County pop. 90,709
- Yuba County pop. 83,079
- Lake County pop. 68,139
- San Benito County pop. 66,056
- Tehama County pop. 65,520
- Tuolumne County pop. 54,873
- Calaveras County pop. 45,995
- Siskiyou County pop. 43,834
- Amador County pop. 41,029
- Lassen County pop. 31,177
- Glenn County pop. 28,623
- Del Norte County pop. 27,293
- Colusa County pop. 21,895
- Plumas County pop. 19,607
- Inyo County pop. 18,803
- Mariposa County pop. 17,060
- Trinity County pop. 15,886
- Mono County pop. 13,169
- Modoc County pop. 8,646
- Sierra County pop. 2,731
- Alpine County pop. 1,695
Source: U.S. Census Bureau, ACS County-to-County Migration Flows, 2020 5-yr (covering 2016-2020).