Solano County is a county located in central part of the U.S. state of California, about halfway between San Francisco and Sacramento and is one of the nine San Francisco Bay Area counties. As of 2000 its population was 394,542. The county seat is Fairfield.According to the U.S. Census Bureau, the county has a total area of 2,348 km² (907 mi²). 2,148 km² (829 mi²) of it is land and 201 km² (77 mi²) of it is water. The total area is 8.55% water. As of the census2 of 2000, there were 394,542 people, 130,403 households, and 97,411 families residing in the county. The population density was 184/km² (476/mi²). There were 134,513 housing units at an average density of 63/km² (162/mi²). The racial makeup of the county was 56.37% White, 14.91% Black or African American, 0.79% Native American, 12.75% Asian, 0.78% Pacific Islander, 8.01% from other races, and 6.39% from two or more races. 17.64% of the population were Hispanic or Latino of any race.