Market insights · California
Alameda County, CA: growth, migration and housing
Alameda County has 1,636,630 residents, down 2.6% since 2020 (0.0% in the last year). In 2022–2023, 40,332 households moved in and 47,991 moved out (-7,659 net), while a net $1.31B of income left. Median household income is $129,367, the median home $1,090,100 and median rent $2,357 a month.
In California: 41st of 58 counties for 5-year population growth · 49th of 58 counties for net in-migration (per resident) · 5th of 58 counties for median household income · 5th of 58 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Alameda County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Santa Clara County, CA | 6,578 | $1262.4M |
| Contra Costa County, CA | 4,871 | $628.8M |
| San Francisco County, CA | 3,938 | $642.9M |
| San Mateo County, CA | 2,498 | $361.5M |
| Los Angeles County, CA | 2,023 | $182.7M |
| San Joaquin County, CA | 1,528 | $114.3M |
| Sacramento County, CA | 1,027 | $78.0M |
| San Diego County, CA | 789 | $70.1M |
Where leavers went
Top counties by households leaving Alameda County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Contra Costa County, CA | 7,141 | $1014.6M |
| Santa Clara County, CA | 4,634 | $742.5M |
| San Francisco County, CA | 3,459 | $503.8M |
| San Joaquin County, CA | 3,092 | $331.8M |
| Los Angeles County, CA | 2,118 | $227.9M |
| San Mateo County, CA | 2,026 | $301.6M |
| Sacramento County, CA | 1,592 | $151.5M |
| San Diego County, CA | 1,019 | $138.8M |
BizyFi in Alameda County
51 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse California companies.
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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.