Download the Solano County Map files on this page as one high-resolution A3 JPG ZIP. The package includes a general county map for cities and roads, a ranked city-distribution map, and a terrain-and-water map centered on bays, marsh channels, creeks, and the western hills. The combination is useful in a county where Vallejo, Fairfield, Vacaville, Dixon, Benicia, and Rio Vista occupy very different settings. The previews let you check the geography first, and the larger JPG files are available for printing or document use.
Solano County is easiest to understand as a transition between several landscapes rather than as one continuous urban area. Vallejo and Benicia sit at the southwestern edge near San Pablo Bay, Fairfield and Suisun City form a close pair farther inland, and Vacaville continues the main urban corridor to the north. Dixon is farther north again, while Rio Vista is separated from those cities on the eastern side. South of Fairfield, the map changes from streets and developed areas to a dense network of bays and sloughs around the Suisun Marsh.
Table of Contents
I-80 gives the clearest route through Vallejo, Fairfield, and Vacaville
On the general map, the strongest chain of cities begins around Vallejo in the southwest and continues northeast through Fairfield toward Vacaville. I-80 is the road that makes that relationship easiest to follow. Vallejo sits near the bay edge, Fairfield appears near the center-west of the county, and Vacaville occupies the next major developed area to the north. Once those three locations are fixed, the rest of the county becomes much easier to organize.
Benicia is close to Vallejo but sits farther south along the water, with I-680 providing a separate highway reference. Fairfield and Suisun City are drawn very close together and can look like one continuous urban area at county scale. North of Vacaville, I-505 branches away and provides a useful landmark for the approach toward Dixon. The map also labels smaller places such as Green Valley, Elmira, Hartley, and Allendale, which help fill in the spaces between the six ranked cities.
The county is not organized around I-80 alone. CA 12 leaves the Fairfield area and runs east toward Rio Vista, while CA 113 is visible in the northern and eastern portion of the county. CA 84 appears near the eastern side around the Rio Vista area. These roads show how quickly the transportation pattern changes once the viewer leaves the dense southwest-to-north urban corridor. A county-scale map is useful for direction and relative location, but current travel times, closures, and route conditions should still be checked with live road information.
The map changes quickly east of Fairfield as cities give way to broad lowlands and waterways
Fairfield and Suisun City occupy a central position between the western city corridor and the wetter southern part of the county. From Fairfield, CA 12 heads east across a much more open section of the map toward Rio Vista. Development becomes less continuous, and the road passes through an area where drainage lines and open land are more prominent than large city blocks. Rio Vista appears near the eastern boundary, clearly separated from the Vallejo–Fairfield–Vacaville concentration.
This eastward contrast is important because a map focused only on the largest cities can make Solano County seem more compact than it is. The general map shows a wide eastern side with long road segments and relatively few major urban labels. Rio Vista therefore works as a useful second reference point after Fairfield: together they mark the change from the county’s central city area to the flatter, water-connected eastern landscape.
The ranked city view separates the Vallejo–Fairfield cluster from Dixon and Benicia
The city-distribution map highlights six places in a simple ranked layout: Vallejo, Fairfield, Vacaville, Suisun City, Benicia, and Dixon. It does not connect those cities with straight lines and does not provide mileage. Its purpose is to show where the ranked cities sit inside the county outline without the extra detail of the full road map. Vallejo occupies the southwest, Fairfield and Suisun City sit near each other in the west-central area, Vacaville is farther north, and Dixon is separated near the northern edge.
Benicia is the southern outlier among the six and appears near the lower edge of the county. That placement is useful because it prevents Benicia from being confused with Vallejo even though the two cities are geographically close. The numbered city index also makes it easy to compare the map’s ranking order. Because the population figures printed in the index depend on a particular source and date, readers who need the latest population should check a current Census release rather than treating the graphic as a live demographic table.
The absence of Rio Vista from the six-city ranking is also a helpful reminder about what this map does and does not show. Rio Vista remains geographically important for understanding the county’s eastern side even though it is not one of the six ranked cities on this particular image. For complete orientation, the ranked view is best used together with the general county map instead of by itself.
Suisun Bay, Grizzly Bay, and the marsh sloughs dominate the southern water map
The terrain-and-water map looks very different from the road map south of Fairfield and Suisun City. Suisun Bay occupies the lower center, with Grizzly Bay and Honker Bay just to the north. Named channels such as Suisun Cutoff and Roaring River Slough sit within a much denser pattern of smaller waterways. That network explains why the southern county outline contains so many narrow water features that are easy to overlook on a simplified road map.
The California Department of Fish and Wildlife describes Grizzly Island Wildlife Area as part of the broad Suisun Marsh wetland system. On the supplied map, this wetland setting is visible as a maze of bays, sloughs, and channels rather than a single river. The map is therefore useful for general geographic context, but it should not be treated as a flood map, tide chart, boating chart, wetland boundary survey, or public-access guide. Those questions require current specialist sources.
Farther southwest, San Pablo Bay and the Napa River appear near the Vallejo side of the county. Comparing the general map with the water map makes the location of Vallejo and Benicia easier to understand: both are close to large bodies of water, while Fairfield and Vacaville sit farther inland. The shift from bay shore to inland city corridor happens over a relatively short part of the county map, which is one reason Solano County contains such varied scenery.
Pleasants, Ulatis, and Alamo creeks descend from the western hills toward the flatter interior
The northwestern corner of the water map shows steep shaded relief near the county boundary, with Lake Berryessa labeled just beyond or near that edge. From this hillier country, several named creeks extend toward the interior. Pleasants Creek lies farther north, while Ulatis Creek and Alamo Creek run through the broader Vacaville area. The relief becomes much gentler to the east, making the transition from hill country to open lowland visible without needing a separate elevation chart.
Vacaville is especially useful for connecting the road and water views. On the general map it sits along the main I-80 corridor, but the terrain view shows that the city is also close to the foot of the western hills. The creek network around it therefore looks very different from the broad marsh channels south of Fairfield. One part of the county is shaped by short streams leaving the hills; another is dominated by tidal bays, sloughs, and lowland waterways.
Union Creek and Suisun Springs Creek are also labeled in the central-southern section. They help bridge the visual gap between the western creek system and the Suisun Bay wetlands. The hillshade provides useful context for those waterways, but it is not intended for exact elevation, slope, engineering, or property analysis. It is a regional relief background that helps explain why the western side is more rugged than the central and eastern portions.
Rio Vista provides the clearest reference for the county’s open eastern water country
Rio Vista sits well east of the six ranked cities and is easy to miss if the viewer studies only the city-distribution map. On the general map, CA 12 provides the clearest route from Fairfield toward Rio Vista. On the water map, the eastern side is crossed by broad channels and smaller branches that continue beyond the county boundary. The combination makes Rio Vista a useful geographic marker for the transition from central Solano County into the wider Delta water landscape.
The eastern side also illustrates why population rank is not the same thing as geographic importance. Rio Vista does not appear in the six-city ranking, yet it anchors a large part of the county map and helps readers understand the route and water systems beyond Fairfield. Anyone planning an actual drive should use current navigation for mileage and road status, but for regional orientation the general and water maps together provide a much better picture than a simple city list.
Use the road map for the city corridor and the water map for Suisun Marsh and the western creeks
Choose the general county map when the main question is where a city or highway lies. It is the easiest view for following I-80 through Vallejo, Fairfield, and Vacaville, locating I-680 near Benicia, finding CA 12 toward Rio Vista, or comparing Dixon with the rest of the county. The ranked city map is better when the goal is to simplify that picture and compare only Vallejo, Fairfield, Vacaville, Suisun City, Benicia, and Dixon.
Choose the terrain-and-water map when the question involves Suisun Bay, Grizzly Bay, Honker Bay, San Pablo Bay, the Napa River, or the creeks descending from the western hills. It is especially useful after locating a city on the road map. Find Vacaville first, then switch to the water map to see Ulatis and Alamo creeks; find Suisun City first, then look south to the bay and slough network. This two-step method makes the county’s changing landscape much easier to understand.
These files are general-reference maps, not legal or emergency products. They should not be used to determine parcel boundaries, flood exposure, tidal conditions, navigable channels, live traffic, evacuation routes, engineering elevations, or survey measurements. For classroom work, regional planning at a broad scale, presentations, personal printing, or understanding how the county’s cities relate to bays and creeks, the three supplied maps provide a practical overview.
Frequently Asked Questions
Does the Solano County city map show distances between the six ranked cities?
No. The city map is a ranked distribution view. It shows Vallejo, Fairfield, Vacaville, Suisun City, Benicia, and Dixon in their relative county positions, but it does not connect them with straight-line or driving-distance measurements. Use a current mapping service for mileage and travel time.
Why are there so many channels south of Fairfield and Suisun City?
That part of the water map covers Suisun Bay and the Suisun Marsh area, where Grizzly Bay, Honker Bay, Suisun Cutoff, Roaring River Slough, and many smaller waterways create a dense wetland pattern. The map shows general water geography only and should not be used for flood, tide, boating, or legal wetland decisions.
Why is Rio Vista important even though it is not on the six-city ranking map?
Rio Vista is a strong geographic reference for the county’s eastern side. The general map places it along the CA 12 route far east of Fairfield, while the water map shows the broad channel network around that side of the county. It helps explain Solano County’s full east-west extent even though this particular ranked city graphic highlights six other cities.
Map File Information
Download the Solano County general map, ranked city-distribution map, and terrain-and-water map as high-resolution A3 JPG files. The ZIP contains three original JPGs matching the subjects shown in the WebP previews above.
- Included Files: general county map, ranked city-distribution map, terrain-and-water map
Related Maps
Sources and References
- Solano County – Departments and County Offices
- California Department of Fish and Wildlife – Grizzly Island Wildlife Area
- U.S. Census Bureau TIGER/Line Shapefiles
- USGS National Hydrography
Green Map creates custom-edited map images using open geographic data sources such as geoBoundaries, Natural Earth, OpenStreetMap, and government open data.
These maps are edited visual materials, not raw data files, and are provided for education, documents, presentations, and graphic reference.
