Solano County, California Demographics 2026
Solano County, California has a population of 451,918, the 19th most populous county in California. The median household income is $100,401 and the median home value is $617,700. The poverty rate is 10.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Solano County Quick Facts
How Solano County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 450,824 | 451,918 | +0.2% |
| Median household income | $99,994 | $100,401 | +0.4% |
| Median home value | $589,600 | $617,700 | +4.8% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
This community is exceptionally diverse, with no single racial or ethnic group dominating the population.
State average: 70 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Solano County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Vallejo | 124,268 | $90,171 | 12.2% | $589,500 |
| Fairfield | 120,785 | $101,895 | 10.2% | $624,300 |
| Vacaville | 102,596 | $111,126 | 8.2% | $620,900 |
| Suisun City | 29,286 | $94,787 | 8.4% | $579,500 |
| Benicia | 26,749 | $121,204 | 7.6% | $810,000 |
| Dixon | 19,683 | $102,878 | 10.2% | $604,800 |
| Rio Vista | 10,102 | $89,306 | 10.3% | $489,700 |
| Hartley | 2,431 | $124,254 | 7.2% | $840,900 |
| Allendale | 1,734 | $107,679 | 7.8% | $1,057,600 |
| Green Valley (Solano County) | 1,364 | $142,000 | 9.2% | $1,200,200 |
| Elmira | 319 | $86,349 | 0.0% | N/A |
Explore California Rankings
Population Overview
Solano County is located in California with a total population of 451,918. It is the 19th most populous county out of 58 in California. The county encompasses 11 Census-designated places.
Age Demographics
The median age in Solano County is 39.2 years. This is 3% higher than the state median of 37.9 years.
Economy, Income & Housing
The median household income in Solano County is $100,401. This is 1% higher than the state median of $99,122. It is also 24% higher than the national median of $80,734. The poverty rate stands at 10.0%. This is 17% lower than the state poverty rate of 12.0%. The unemployment rate is 6.5%. This is 2% lower than the state rate of 6.6%. The median home value is $617,700. Housing costs are 16% lower than the state median of $734,700. The home-value-to-income ratio of 6.2x suggests that housing affordability is a significant concern for many residents. 63.0% of occupied housing units are owner-occupied. This homeownership rate is 13% higher than the state average of 55.9%.
Race & Ethnicity
Solano County is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. Hispanic or Latino residents account for 29.6%. The Black or African American population is significantly higher than the state average (12.3% vs 5.2%).
Education
28.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% lower than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 88.6%.
Data Sources & Methodology
All figures for Solano County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against California and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Solano County, California?
Solano County has a population of 451,918, making it the 19th most populous county in California.
What is the median income in Solano County?
The median household income in Solano County is $100,401 with a poverty rate of 10.0%.
How many cities are in Solano County, California?
Solano County contains 11 Census-designated places.