Solano County GIS Maps
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Solano County, California, has 453,491 residents and covers 821.8 square miles. The population grew 9.7% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Solano County is 06095.
Vallejo is the county's largest population center. Solano County also includes 15 zip codes, 9 public school districts and 14 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Solano County Trends
- Population
- 453,491▴
- Median Home Value
- $589,600▴
- K-12 Enrollment
- 66,879▾
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Solano County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
Solano County Population
Solano County had 453,491 residents in 2020. That was 9.7% higher than in 2010. Solano County added 58,949 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 552 people per square mile. Some of the county's most populated postal areas include Fairfield, Vacaville and Vallejo.
Population Trend in Solano County CA
Solano County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Solano County Zip Codes
Solano County has 15 zip codes. Some of the county's most populated zip codes include Fairfield (94533), Vacaville (95687) and Vallejo (94591). Fairfield is the largest zip by population, with about 77,380 residents or 17% of the county total. Together, the three largest zips account for about 45% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Solano County CA
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 94533 | Fairfield | 77,380 | ▴ 11.7% |
| 95687 | Vacaville | 69,837 | ▴ 7.3% |
| 94591 | Vallejo | 56,305 | ▴ 6.2% |
| 94534 | Fairfield | 42,296 | ▴ 16.1% |
| 94590 | Vallejo | 39,981 | ▴ 12.9% |
| Download all zip code data | |||
Solano County Zip Code populations and trends per most recent census data.
Solano County Demographics
Solano County has a median age of 39.1, which makes the county a little older than California overall. About 22.1% of residents are under 18, while 16.9% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 33.5% of the population, which points to a solid working-age base. About 28.4% of adults have a bachelor's degree or higher, above the statewide figure of 36.5%. The county has a more diverse population mix, with no single race or ethnicity accounting for all of the local story.
Key Demographics for Solano County CA
Median Age
39.1
Under 18
22.1%
Age 65+
16.9%
Bachelor's+
28.4%
Solano County School Districts
Solano County is served by 9 public school districts with 66,879 students enrolled in 2024. The largest districts on the county map are Fairfield-Suisun Unified, Vacaville Unified and Vallejo City Unified. Those three districts account for about 64% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in Solano County CA
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Fairfield-Suisun Unified School District | 20,304 | 30.4% | ▾ -0.3% |
| Vacaville Unified School District | 12,690 | 19% | ▴ 0.1% |
| Vallejo City Unified School District | 9,638 | 14.4% | ▾ -1.9% |
| Davis Joint Unified School District | 8,241 | 12.3% | ▾ -1.3% |
| Travis Unified School District | 5,392 | 8.1% | ▾ -0.4% |
| Download all school district data | |||
Solano County school district enrollment and trends per most recent NCES reporting data.
Solano County Housing & Real Estate
Solano County has a median home value of $589,600 and a median gross rent of $2,088. About 63% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the California median, while rents come in above the state average. In March 2026, the median listing price was $571,350 and homes spent about 36 days on the market.
Solano County Housing Mix
Solano County housing mix: owner, renter and vacant units.
Solano County Housing Trends
Solano County median home value and rent trend (last 5 years).
Businesses in Solano County, CA
Solano County has 13,312 business listings across 930 categories. The largest categories in Solano County business listings are Real Estate Agents (327, 2.5%), Churches & Religious Organizations (303, 2.3%), and Auto Repair (237, 1.8%). The full Solano County business listings dataset includes names, categories, addresses and contact details where available. Solano County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Solano County, CA
| Category | Businesses | Share |
|---|---|---|
| Real Estate Agents | 327 | 2.5% |
| Churches & Religious Organizations | 303 | 2.3% |
| Auto Repair | 237 | 1.8% |
| Parks & Recreation | 201 | 1.5% |
| Beauty Salons | 198 | 1.5% |
| Dental Offices | 175 | 1.3% |
| Gas Stations | 167 | 1.3% |
| Mexican Restaurants | 159 | 1.2% |
| Landmark And Historical Building | 155 | 1.2% |
| Fast Food | 153 | 1.1% |
Solano County Business Listings
| Business | Category | City |
|---|---|---|
| Southern Solano Alcohol Council | Abuse And Addiction Treatment | Vallejo |
| Cal Maritime Bookstore | Academic Bookstore | Vallejo |
| Sundance | Accommodation | Vallejo |
| Bolls and Company | Accountant | Vacaville |
| Pacific Edge Sports Academy | Active Life | Fairfield |
| Pivot Acupuncture | Acupuncture | Fairfield |
| Drug Rehab Fairfield | Addiction Rehabilitation Center | Fairfield |
| Vacaville Adult Education | Adult Education | Vacaville |
| Secrets Boutique | Adult Entertainment | Fairfield |
| Not Too Naughty | Adult Store | Vallejo |
| Download Solano County business listings | ||
Solano County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Solano County Basemaps
Solano County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Solano County Data Package
This page shows a preview of what's included in the Solano County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Solano County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.