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Solano County, CA
11 cities and towns and 16 ZIP codes in Solano County, California.
Population
451,918
Land area
822sq mi
People per sq mi
550
ZIP codes
16
Cities and towns in Solano County
Solano County at a glance
- Solano County is about 2.2 times as dense as California as a whole.
- The median household income is $100,401, close to the California median.
- A typical owner-occupied home is valued at $617,700 (16% below California) and median rent is $2,163 a month.
- Its largest cities are Vallejo (124,268), Fairfield (120,785) and Vacaville (102,596).
Local data for Solano County, CA
Counts from official public data
- Hospitals6
- Emergency Rooms4
- Nursing Homes9
- Schools127
- Colleges7
- Libraries11
- Banks43
- Post Offices16
- Parks197
- Grocery Stores118
- Restaurants1,074
- Affordable Housing18
- Home Health Agencies10
- Hospice Care7
- Dialysis Centers14
- Rehab & Long-Term Care Hospitals1
- Community Health Centers28
- Mental Health & Addiction Treatment17
- National Cemeteries3
- Private Schools19
- Community Colleges & Trade Schools4
- Superfund Sites2
- Toxic Release Facilities16
- Historic Places24
Housing and community stats
Solano County, CA, American Community Survey 2020-2024
Median household income
$100,401
Poverty rate
10.0%
Median home value
$617,700
Prices -0.3% in a year
Median rent
$2,163/mo
Homeownership
63.0%
Bachelor's or higher
28.8%
Median age
39.2
Average commute
31.0 min
Largest reported origins and ancestries: Mexican Americans (100,502), Filipino Americans (49,018), German Americans (30,574).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
5.3%
Sep 2026, -0.2 pts in a year
Average annual pay
$73,494
144,004 jobs, 2025
Income per person
$67,744
BEA, 2024
Federal spending
$3.3B
FY 2026, $7,167 per person
PPP loans
$697M
9,767 loans, 74,049 jobs reported
Campaign donations
$2.1M
Itemized, 2026 cycle
How people get to work
Solano County, CA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone74.3%
- Carpooled9.2%
- Public transit1.5%
- Walked1.3%
- Bicycle0.3%
- Taxi, ride-hailing, motorcycle or other1.2%
- Worked from home12.2%
Average one-way commute: 31.0 minutes for people who do not work from home.
Environment and hazard risk
Solano County, CA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: drought
Storm events since 1996
49
Most often flood
Flood insurance policies
1,696
1.3% of homes, county
July high / Jan low
95° / 38°F
24.8 inches of rain a year
Hazards, floods and storm historyCheck a flood zone24 historic places
Health statistics
Share of adults in Solano County, CA, CDC PLACES estimates
Obesity
31.3%
U.S. 33.3% -2.0 pts
Diabetes
12.1%
U.S. 12.1% about the same
Smoking
11.3%
U.S. 12.8% -1.5 pts
Uninsured (18-64)
9.1%
U.S. 11.1% -2.0 pts
Cities, towns and ZIP codes in Solano County
Population shown
Frequently asked questions
- What is the largest city in Solano County, CA?
- Vallejo is the largest city or town in Solano County, with about 124,268 residents.
- How many ZIP codes are in Solano County?
- Solano County includes 16 ZIP Code Tabulation Areas, including 94510, 94512, 94533, 94534, 94535.
- What is the population of Solano County, CA?
- About 451,918 people live in Solano County, based on American Community Survey 5-year estimates.
- What counties border Solano County?
- Solano County borders Sacramento County, Contra Costa County, Sonoma County, Yolo County, Napa County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023