California Net Migration By County in 2023

Updated on June 21, 2025.

According to the US Census Bureau estimates, in 2023, the net migration for California was -51,308. Riverside County had the highest net migration (17,251) followed by San Joaquin County (6,806), and Placer County (6,456). On the other hand, Los Angeles County had the lowest net migration (-39,612), followed by Orange County (-12,020), and San Diego County (-9,708).

Net migration for a county refers to the difference between the number of migrants, both domestic and international, moving to the county and those leaving the county. Or to put it simply, the net migration for a given county is the inbound migration minus the outbound migration for that county.

You can also see similar information for other states and also by state for the United States.

Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.

See this for other years:
California Net Migration By County in 2023
California Net Migration By County in 2023
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County Net Migration
Alameda -3349
Alpine -33
Amador 544
Butte 460
Calaveras 274
Colusa 53
Contra Costa -798
Del Norte -65
El Dorado -339
Fresno -2698
Glenn -220
Humboldt -543
Imperial -270
Inyo -137
Kern -5010
Kings -427
Lake 34
Lassen -1584
Los Angeles -39612
Madera 2255
Marin -1454
Mariposa -23
Mendocino -487
Merced 759
Modoc -7
Mono 112
Monterey -3542
Napa -876
Nevada 112
Orange -12020
Placer 6456
Plumas -233
Riverside 17251
Sacramento 1470
San Benito 274
San Bernardino -3811
San Diego -9708
San Francisco 4569
San Joaquin 6806
San Luis Obispo -109
San Mateo -523
Santa Barbara -4084
Santa Clara 6060
Santa Cruz -2459
Shasta 541
Sierra -11
Siskiyou -523
Solano 668
Sonoma 171
Stanislaus -482
Sutter -460
Tehama -212
Trinity -11
Tulare -710
Tuolumne 508
Ventura -3918
Yolo -828
Yuba 891