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Where am ILOCATED

Solano County, California

Solano County, California, has 455,376 residents (July 2025 estimate). Its county seat is Fairfield. It uses Pacific Time and covers 822 sq mi (2,128 km²) of land.

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Solano County in California
Napa CountyVallejoFairfieldVacavilleBenicia
Solano County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
455,376
Land area
822 sq mi (2,128 km²)
County seat or government
Fairfield
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
Median household income
$100,401 ± $2,108
Median home value
$617,700 ± $4,898
Median rent, with utilities
$2,163 ± $31
Homes lived in by their owners
63% ± 0.8 points
County type
County
Metro or micro area
Vallejo, CA metro areaCentral county
Water area
84.4 sq mi (219 km²)
State
California
County code (FIPS)
06095
Coordinates (central point)
38.267226, -121.939594
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Solano County

Time zoneLocal time and UTC offsetNext clock change
Pacific TimeAmerica/Los_AngelesUTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 9453378,805 people
  2. 9568769,390 people
  3. 9455863,657 people
  4. 9459158,193 people
  5. 9561653,630 people
  6. 9453441,203 people
  7. 9568840,201 people
  8. 9459037,128 people
  9. 9458929,990 people
  10. 9458529,357 people
  11. 9451026,749 people
  12. 9561826,267 people
All 22
  1. 9562022,223 people
  2. 9450321,841 people
  3. 9457110,974 people
  4. 9569410,759 people
  5. 945353,952 people
  6. 956902,431 people
  7. 956121,865 people
  8. 945921,049 people
  9. 95625319 people
  10. 94512130 people

22 ZIP Code areas overlap Solano County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

Solano County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Solano County, largest first

  1. Fairfield-Suisun Unified School District140,650 people
  2. Vallejo City Unified School District126,360 people
  3. Vacaville Unified School District89,091 people
  4. Davis Joint Unified School District79,811 people
  5. Travis Unified School District32,943 people
  6. Benicia Unified School District26,749 people
  7. Dixon Unified School District23,426 people
  8. River Delta Joint Unified School District19,031 people
  9. Winters Joint Unified School District9,952 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Vallejo, California (city)124,268 people
  2. Fairfield, California (city)120,785 people
  3. Vacaville, California (city)102,596 people
  4. Suisun City, California (city)29,286 people
  5. Benicia, California (city)26,749 people
  6. Dixon, California (city)19,683 people
  7. Rio Vista, California (city)10,102 people
  8. Hartley, California (CDP)2,431 people
  9. Allendale, California (CDP)1,734 people
  10. Green Valley, Solano County, California (CDP)1,364 people
  11. Elmira, California (CDP)319 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Contra Costa County, California24 mi south
  2. Napa County, California27 mi northwest
  3. Yolo County, California29 mi north
  4. Sacramento County, California35 mi east
  5. Marin County, California46 mi west
  6. Sonoma County, California56 mi west

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.