Solano County, California Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Vallejo1121,778125,894-0.84%4,00130.4City
Fairfield2121,079119,8330.26%2,91241.6City
Vacaville3102,670102,0920.14%3,43729.9City
Suisun City428,49829,478-0.85%7,1164.0City
Benicia526,20327,106-0.85%2,04512.8City
Dixon619,40119,0320.48%2,7337.1City
Rio Vista710,19010,0080.44%1,5446.6City
University California-Davis88,6369,0312.41%5,0011.7CDP
Hartley92,8562,6550.85%4416.5CDP
Allendale101,7931,4291.19%2926.1CDP
Green Valley111,5801,583-0.19%1898.4CDP
El Macero121,1821,0867.75%2,0140.6CDP
Elmira13133234-2.92%2500.5CDP

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Solano County, California?

Vallejo is the largest city in Solano County.

What is the smallest city in Solano County, California?

Elmira is the smallest city in Solano County.

How many cities are in Solano County?

There are 13 cities in Solano County, California.

Frequently Asked Questions