Counties in California by net international migration, July to June
Los Angeles County had the highest net international migration, July to June of 58 counties in 2020, at 7,573. Riverside County had the lowest, at -781. The median was 3 and the figure for California was 28,803. Source: the U.S. Census Bureau.
All counties, 2020
Full ranking
| Rank | Counties | 2020 | Change on 2019 |
|---|---|---|---|
| 1 | Los Angeles County Estimated | 7,573 | -15% |
| 2 | Santa Clara County Estimated | 6,959 | -20% |
| 3 | Alameda County Estimated | 4,436 | -20% |
| 4 | San Diego County Estimated | 2,458 | -10.8% |
| 5 | Orange County Estimated | 2,336 | -15.5% |
| 6 | San Francisco County Estimated | 2,118 | -21.1% |
| 7 | San Mateo County Estimated | 1,677 | -21.7% |
| 8 | Sacramento County Estimated | 1,599 | -18.4% |
| 9 | Contra Costa County Estimated | 1,515 | -19.3% |
| 10 | Yolo County Estimated | 435 | -20.9% |
| 11 | San Joaquin County Estimated | 269 | -7.9% |
| 12 | Marin County Estimated | 255 | -20.6% |
| 13 | Santa Barbara County Estimated | 162 | +15.7% |
| 14 | Shasta County Estimated | 102 | -13.6% |
| 14 | Solano County Estimated | 102 | +15.9% |
| 16 | Placer County Estimated | 51 | +13.3% |
| 17 | El Dorado County Estimated | 41 | -6.8% |
| 17 | Fresno County Estimated | 41 | +169.5% |
| 19 | Mono County Estimated | 33 | -15.4% |
| 20 | Sutter County Estimated | 31 | +34.8% |
| 21 | Butte County Estimated | 20 | -37.5% |
| 22 | Del Norte County Estimated | 16 | -5.9% |
| 23 | Humboldt County Estimated | 13 | +62.5% |
| 23 | Tuolumne County Estimated | 13 | 0% |
| 25 | Amador County Estimated | 11 | -21.4% |
| 26 | Mariposa County Estimated | 7 | +16.7% |
| 27 | Siskiyou County Estimated | 5 | |
| 28 | Inyo County Estimated | 4 | 0% |
| 29 | Calaveras County Estimated | 3 | 0% |
| 29 | Trinity County Estimated | 3 | +200% |
| 31 | Lassen County Estimated | 2 | -66.7% |
| 32 | Plumas County Estimated | 1 | 0% |
| 32 | Yuba County Estimated | 1 | +111.1% |
| 34 | Alpine County Estimated | 0 | |
| 34 | Sierra County Estimated | 0 | +100% |
| 36 | Modoc County Estimated | -2 | +50% |
| 37 | Nevada County Estimated | -4 | +60% |
| 38 | Lake County Estimated | -23 | +30.3% |
| 39 | Mendocino County Estimated | -24 | +36.8% |
| 40 | Glenn County Estimated | -25 | +45.7% |
| 41 | Santa Cruz County Estimated | -26 | +61.2% |
| 42 | Napa County Estimated | -29 | +59.2% |
| 43 | Tehama County Estimated | -30 | +37.5% |
| 44 | Colusa County Estimated | -35 | +28.6% |
| 45 | San Benito County Estimated | -48 | +40% |
| 46 | San Luis Obispo County Estimated | -50 | +51.9% |
| 47 | Sonoma County Estimated | -53 | +52.7% |
| 48 | Stanislaus County Estimated | -58 | +50% |
| 49 | Imperial County Estimated | -75 | +42.7% |
| 50 | Kings County Estimated | -94 | +27.1% |
| 51 | Madera County Estimated | -184 | +26.4% |
| 52 | Merced County Estimated | -205 | +31.4% |
| 53 | Monterey County Estimated | -260 | +36.9% |
| 54 | Tulare County Estimated | -291 | +34.8% |
| 55 | Kern County Estimated | -316 | +36.3% |
| 56 | Ventura County Estimated | -320 | +28.3% |
| 57 | San Bernardino County Estimated | -556 | +37% |
| 58 | Riverside County Estimated | -781 | +35.8% |
Other periods
About this ranking
Estimated moves into the area from abroad minus moves out of the area to other countries, from July 1 of the previous year through June 30 of the reported year. United States: Census Bureau estimates, including people born in the United States and abroad, moves between the states and Puerto Rico, and net movement of the Armed Forces overseas. Canada: Statistics Canada immigrants, minus net emigration, plus the net change in non-permanent residents. Australia: ABS net overseas migration for the financial year. United Kingdom local authorities: Office for National Statistics mid-year estimates, counting people who move for at least 12 months.
A component of each country's official population estimates. Methods differ between the statistical offices, so compare places within a country first. Differs from the World Bank net_migration series, which uses calendar years and a different method.
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 international migration, 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 international migration, 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 international migration, July to June, 2020) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html
MLA 9
Population Estimates Program: net international migration, 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 international migration, July to June, 2020. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/net-international-migration-july-june/california-counties?period=2020. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Population Estimates Program: net international migration, 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 international migration, July to June, 2020. 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-international-migration-july-june/california-counties?period=2020.
Harvard
U.S. Census Bureau (2026) Population Estimates Program: net international migration, 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 international migration, July to June, 2020 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-international-migration-july-june/california-counties?period=2020 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_california_by_2020,
author = {{U.S. Census Bureau}},
title = {{Population Estimates Program: net international migration, 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 international migration, July to June, 2020}},
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-international-migration-july-june/california-counties?period=2020. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration, 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 international migration, 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 international migration, July to June, 2020
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-international-migration-july-june/california-counties?period=2020
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-july-june/california-counties?period=2020.
N1 - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration, 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 -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in California by net international migration, July to June using official data, and cite the source.
rank_places {"indicator":"net_international_migration_july_june","level":"province","within":"California","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=net_international_migration_july_june&level=province&within=California&limit=10Questions
Which county has the highest net international migration, July to June?
Los Angeles County, with 7,573 in 2020, according to the U.S. Census Bureau.
Which county has the lowest net international migration, July to June?
Riverside County, with -781 in 2020.
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 international migration, 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.