County · California
Solano County, California
Solano County, California. Solano County had 455,376 residents in 2025 by the Census Bureau's estimate, up 0.4% since 2020, while California shrank 0.5%. It holds 11 places (7 cities, villages and boroughs and 4 census-designated) and 100 census tracts. GEOID 06095.
Solano County is the county of the Vallejo, CA metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
455,376
Census Bureau estimate (no margin published)
2020 Census count: 453,491 · ACS 2020-2024: 451,918
Median household income
$100,401
±$2,108 (90% margin)
California: $99,122
Median home value
$617,700
±$4,898 (90% margin)
California: $734,700
Median gross rent
$2,163
±$31 (90% margin)
California: $2,036
How many people live in Solano County, and is it growing?
The 2020 Census counted 453,491 residents in Solano County. The Census Bureau estimates 455,376 for July 1, 2025, up 0.4% since 2020, while California shrank 0.5%. The 2020-2024 American Community Survey puts the population at 451,918 over 822 square miles of land.
| Measure | Solano County | California | Change since 2015-2019 |
|---|---|---|---|
| Total population | 451,918 | 39,287,377 | +10,089 |
| Households | 157,512±751 | 13,548,091 | +7,647 |
| Average household size | 2.80±0.01 | 2.84 | −0.08 |
| Housing units | 164,693±105 | 14,644,735 | +6,893 |
Solano County's population since 2000
From 394,542 in 2000 to 455,376 in 2025: up 15.4%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Solano County?
Solano County holds 11 places: 7 cities, villages and boroughs (incorporated places) and 4 census-designated places. The largest is Vallejo with 123,287 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Vallejo | 126,090 | $90,171 |
|---|---|---|
| Fairfield | 119,881 | $101,895 |
| Vacaville | 102,386 | $111,126 |
| Suisun City | 29,518 | $94,787 |
| Benicia | 27,131 | $121,204 |
| Dixon | 18,988 | $102,878 |
| Rio Vista | 10,005 | $89,306 |
| Hartley | 2,430 | $124,254 |
| Green Valley (Solano County) | 1,654 | $142,000 |
| Allendale | 1,651 | $107,679 |
| ElmiraGEOID 0622146 | 193 | $86,349 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Solano County?
The median resident of Solano County is 39.2 years old; 21.9% are under 18 and 17.4% are 65 or older. The largest group is non-Hispanic white residents at 33.2%, then Hispanic or Latino residents (of any race) at 29.6%. 20.8% of residents were born outside the United States.
| Measure | Solano County | California | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.2±0.2 | 37.9 | +1.1 |
| Under 18 years | 21.9% | 22.0% | – |
| 65 years and over | 17.4% | 15.7% | – |
| Hispanic or Latino (any race) | 29.6% | 40.2% | +3.1 pts |
| White alone, not Hispanic | 33.2%±0.2 pts | 33.8% | −4.8 pts |
| Black or African American alone, not Hispanic | 12.3%±0.3 pts | 5.2% | −1.2 pts |
| Asian alone, not Hispanic | 15.9%±0.3 pts | 15.3% | +0.9 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.2%±0.1 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.8%±0.1 pts | 0.3% | – |
| Two or more races, not Hispanic | 6.9%±0.4 pts | 4.4% | – |
| Some other race alone, not Hispanic | 0.9%±0.2 pts | 0.6% | – |
| Born outside the United States | 20.8%±0.5 pts | 27.0% | +0.7 pts |
| Speak a language other than English at home (age 5+) | 31.5%±0.7 pts | 44.4% | – |
| Civilian veterans (age 18+) | 8.2%±0.3 pts | 4.3% | – |
| With a disability | 13.5%±0.4 pts | 11.6% | – |
| No health insurance coverage | 4.8%±0.3 pts | 6.6% | no clear change |
| High school graduate or higher (age 25+) | 88.6%±0.5 pts | 84.7% | – |
| Bachelor's degree or higher (age 25+) | 28.8%±0.9 pts | 37.1% | +1.9 pts |
| Graduate or professional degree (age 25+) | 9.1%±0.5 pts | 14.4% | – |
| Moved from another state in the past year | 1.0%±0.2 pts | 1.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Solano County earn?
Half of Solano County's 157,512 households earn less than $100,401 a year (±$2,108), against $99,122 in California. In 2015-2019 it was $100,267 in 2024 dollars; the margins of error cannot tell the two periods apart. 10.0% of residents live below the poverty line.
| Measure | Solano County | California | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $100,401±$2,108 | $99,122 | no clear change |
| Mean household income | $126,026±$1,952 | $140,436 | – |
| Per capita income | $45,127±$720 | $49,513 | +$1,560 |
| People below the poverty line | 10.0%±0.6 pts | 12.0% | no clear change |
| Children under 18 below the poverty line | 12.3%±1.3 pts | 15.0% | no clear change |
| Households receiving SNAP | 11.4%±0.7 pts | 12.4% | – |
| Households with a broadband subscription | 93.8%±0.5 pts | 93.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Solano County?
Owners occupy 63.0% of Solano County's occupied homes and renters 37.0%. The median owner-occupied home is valued at $617,700 by its owner (±$4,898). The median renter pays $2,163 a month including utilities, and 49.4% of renters pay 35% or more of their income on rent.
| Measure | Solano County | California | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $617,700±$4,898 | $734,700 | +$116,931 |
| Median gross rent | $2,163±$31 | $2,036 | +$204 |
| Renters paying 35% or more of income on rent | 49.4%±2.1 pts | 46.0% | +6.0 pts |
| Median monthly owner costs, with a mortgage | $2,746±$36 | $2,946 | – |
| Owner-occupied homes | 63.0%±0.9 pts | 55.9% | +1.5 pts |
| Housing units | 164,693±105 | 14,644,735 | +6,893 |
| Homeowner vacancy rate | 0.9%±0.3 pts | 0.8% | – |
| Rental vacancy rate | 2.8%±0.6 pts | 4.2% | – |
| Single-family detached homes | 71.5%±0.7 pts | 57.0% | – |
| Mobile homes | 2.5%±0.3 pts | 3.5% | – |
| Built 2020 or later | 1.5%±0.2 pts | 1.3% | – |
| Built 1939 or earlier | 4.9%±0.5 pts | 8.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Solano County building?
Builders took permits for 881 new housing units across Solano County in 2025 (750 single-family), 1.9 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Solano County get to work?
74.3% of Solano County's workers drive alone and 12.2% work from home. The average trip to work takes 31.0 minutes. The unemployment rate in 2020-2024 averaged 6.5%.
| Measure | Solano County | California | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.0%±0.6 pts | 63.8% | – |
| Unemployment rate | 6.5%±0.5 pts | 6.6% | no clear change |
| Drove alone to work | 74.3%±1.0 pts | 65.7% | – |
| Carpooled | 9.2%±0.6 pts | 9.5% | – |
| Public transportation | 1.5%±0.3 pts | 2.9% | – |
| Walked | 1.3%±0.2 pts | 2.4% | – |
| Worked from home | 12.2%±0.8 pts | 17.2% | +7.7 pts |
| Mean travel time to work | 31.0 min±0.6 | 28.7 min | −2.2 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Solano County's census tracts?
Solano County is divided into 100 census tracts. Among those with a reliable estimate, median household income runs from $48,300 (Tract 2509) to $199,821 (Tract 2522.04).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Solano County compare with California's other counties?
| Measure | Rank |
|---|---|
| Population | 19th of 58 |
| Growth 2020-2025 | 20th of 58 |
| Residents per square mile | 12th of 58 |
| Median household income | 17th of 58 |
| Median home value | 23rd of 58 |
| Median gross rent | 12th of 56 |
| Poverty rate | 42nd of 57 |
| Bachelor's degree or higher | 27th of 58 |
| Median age | 32nd of 58 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Solano County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.