Counties in California by net domestic migration, July to June
Riverside County had the highest net domestic migration, July to June of 58 counties in 2021, at 25,856. Los Angeles County had the lowest, at -195,168. The median was -159 and the figure for California was -470,759. Source: the U.S. Census Bureau.
Map of counties, 2021
- Under -5,000
- -5,000 to -1,000
- -1,000 to 0
- 0 to 2,000
- 2,000 and over
All counties, 2021
Full ranking
| Rank | Counties | 2021 | Change on 2020 |
|---|---|---|---|
| 1 | Riverside County Estimated | 25,856 | +65.2% |
| 2 | Placer County Estimated | 7,118 | +77.2% |
| 3 | San Joaquin County Estimated | 4,145 | +67.6% |
| 4 | Merced County Estimated | 3,329 | +749.2% |
| 5 | El Dorado County Estimated | 2,739 | +3,988.1% |
| 6 | Madera County Estimated | 2,048 | +468.9% |
| 7 | San Benito County Estimated | 1,928 | +119.6% |
| 8 | Kern County Estimated | 1,877 | +160.1% |
| 9 | Nevada County Estimated | 1,730 | +623.8% |
| 10 | Calaveras County Estimated | 1,182 | +220.3% |
| 11 | Amador County Estimated | 888 | +57.4% |
| 12 | Shasta County Estimated | 725 | +373.6% |
| 13 | Yuba County Estimated | 699 | -35.3% |
| 14 | Lake County Estimated | 692 | +206.2% |
| 15 | Plumas County Estimated | 370 | +1,470.4% |
| 16 | Siskiyou County Estimated | 322 | +262.6% |
| 17 | Tulare County Estimated | 192 | +199% |
| 18 | Tuolumne County Estimated | 96 | -78.1% |
| 19 | Mariposa County Estimated | 87 | 0% |
| 19 | Sierra County Estimated | 87 | +611.8% |
| 21 | Trinity County Estimated | 75 | +287.5% |
| 22 | Alpine County Estimated | 48 | +500% |
| 23 | Mendocino County Estimated | 6 | +100.8% |
| 24 | Del Norte County Estimated | -2 | -102.3% |
| 25 | Modoc County Estimated | -3 | +95.3% |
| 26 | Colusa County Estimated | -32 | -300% |
| 27 | Mono County Estimated | -45 | -55.2% |
| 28 | Inyo County Estimated | -56 | -191.8% |
| 29 | San Bernardino County Estimated | -156 | -15,500% |
| 30 | Tehama County Estimated | -162 | +76.6% |
| 31 | Glenn County Estimated | -274 | -0.4% |
| 32 | Lassen County Estimated | -397 | +47.8% |
| 33 | Sutter County Estimated | -673 | +25.1% |
| 34 | Kings County Estimated | -1,007 | +11.9% |
| 35 | Humboldt County Estimated | -1,032 | -42.3% |
| 36 | Imperial County Estimated | -1,159 | +23.9% |
| 37 | Napa County Estimated | -1,193 | +19.9% |
| 38 | Fresno County Estimated | -2,044 | +38.7% |
| 39 | San Luis Obispo County Estimated | -2,276 | -925.2% |
| 40 | Marin County Estimated | -2,356 | -24.5% |
| 41 | Stanislaus County Estimated | -2,468 | -6.7% |
| 42 | Butte County Estimated | -3,265 | +44.2% |
| 43 | Solano County Estimated | -3,337 | -97.5% |
| 44 | Monterey County Estimated | -3,830 | +25.1% |
| 45 | Sonoma County Estimated | -3,893 | -89.2% |
| 46 | Yolo County Estimated | -4,817 | -265.8% |
| 47 | Ventura County Estimated | -5,445 | -18.3% |
| 48 | Sacramento County Estimated | -5,559 | -14,353.8% |
| 49 | Contra Costa County Estimated | -6,777 | -45.3% |
| 50 | Santa Cruz County Estimated | -9,988 | -210.3% |
| 51 | Santa Barbara County Estimated | -11,979 | -342% |
| 52 | San Mateo County Estimated | -25,429 | -135.1% |
| 53 | Orange County Estimated | -33,109 | -80.2% |
| 54 | San Diego County Estimated | -40,718 | -177.4% |
| 55 | Alameda County Estimated | -43,102 | -156.9% |
| 56 | San Francisco County Estimated | -56,494 | -254.7% |
| 57 | Santa Clara County Estimated | -58,753 | -88.6% |
| 58 | Los Angeles County Estimated | -195,168 | -76.7% |
Other periods
About this ranking
Estimated moves into an area from elsewhere in the same country minus moves out to the rest of the country, from July 1 of the previous year through June 30 of the reported year.
More on how it is measured
- United States: states and counties.
- Canada: provinces and territories, net interprovincial migration (Statistics Canada).
- United Kingdom: local authorities, counting moves between any two UK local authorities, including across the borders of England, Wales, Scotland and Northern Ireland (ONS internal migration).
- A negative value means more people left than arrived.
Sums to zero, or close to it, for each country as a whole, so there is no national value.
Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.
How to cite
U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.Citation styles
APA 7
U.S. Census Bureau. (2026). Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021 (Counties in California by net domestic migration, July to June, 2021) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html
MLA 9
Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in California by net domestic migration, July to June, 2021. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/california-counties?period=2021. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Counties in California by net domestic migration, July to June, 2021. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/california-counties?period=2021.
Harvard
U.S. Census Bureau (2026) Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in California by net domestic migration, July to June, 2021 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-domestic-migration-july-june/california-counties?period=2021 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_california_by_2021,
author = {{U.S. Census Bureau}},
title = {{Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in California by net domestic migration, July to June, 2021}},
year = {2026},
howpublished = {Data set},
url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/california-counties?period=2021. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY - DATA
AU - U.S. Census Bureau
TI - Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in California by net domestic migration, July to June, 2021
PY - 2026
DA - 2026/03/26
PB - U.S. Census Bureau
DB - Invokely
UR - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2 - https://invokely.ai/rankings/net-domestic-migration-july-june/california-counties?period=2021
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/california-counties?period=2021.
N1 - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER -
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Rank Counties in California by net domestic migration, July to June using official data, and cite the source.
rank_places {"indicator":"net_domestic_migration_july_june","level":"province","within":"California","limit":10}
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Which county has the highest net domestic migration, July to June?
Riverside County, with 25,856 in 2021, according to the U.S. Census Bureau.
Which county has the lowest net domestic migration, July to June?
Los Angeles County, with -195,168 in 2021.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.
Net domestic migration, July to June: other rankings
Counties in California: more rankings
- Population density
- Net domestic migration rate, July to June
- Net international migration rate, July to June
- Female population share
- Covered employment (QCEW)
- High cholesterol in screened adults, local model estimate
- Uninsured rate, ages 35 to 64 (US, ACS)
- Uninsured rate, ages 18 to 64 (US model-based estimate)