Market insights · California
San Joaquin County, CA: growth, migration and housing
San Joaquin County has 823,815 residents, up 5.5% since 2020 (+0.8% in the last year). In 2022–2023, 15,142 households moved in and 15,241 moved out (-99 net), bringing in a net $256.6M of income. Median household income is $92,179, the median home $530,700 and median rent $1,734 a month.
In California: 5th of 58 counties for 5-year population growth · 11th of 58 counties for net in-migration (per resident) · 23rd of 58 counties for median household income · 27th of 58 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to San Joaquin County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Alameda County, CA | 3,092 | $331.8M |
| Santa Clara County, CA | 2,060 | $272.2M |
| Stanislaus County, CA | 1,560 | $107.3M |
| Sacramento County, CA | 1,268 | $94.1M |
| Contra Costa County, CA | 977 | $83.4M |
| San Mateo County, CA | 416 | $37.2M |
| Los Angeles County, CA | 343 | $21.4M |
| Solano County, CA | 237 | $13.2M |
Where leavers went
Top counties by households leaving San Joaquin County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Stanislaus County, CA | 1,879 | $107.7M |
| Sacramento County, CA | 1,637 | $98.0M |
| Alameda County, CA | 1,528 | $114.3M |
| Santa Clara County, CA | 861 | $75.4M |
| Contra Costa County, CA | 747 | $56.0M |
| Los Angeles County, CA | 375 | $20.2M |
| San Diego County, CA | 249 | $15.5M |
| Calaveras County, CA | 247 | $18.8M |
BizyFi in San Joaquin County
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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.