FSUSD is a unified school district serving the cities of Fairfield and Suisun.
General information from their website:
"The cities of Fairfield and Suisun enjoy a balance of the rural Central Valley and the bustling Bay Area, that is distinctly their own. Unified in 1968, F-SUSD has an enrollment of approximately 23,000 K-12 students, and is comprised of 31 schools including 5 high schools, 5 middle schools, 20 elementary schools, and 1 adult school. The FSUSD District office is located at 2490 Hilborn Road, in Fairfield. The central switchboard can be reached at (707) 399-5000"