Early Japanese immigrants first began as farm laborers in Vacaville and developed a large Japantown by 1910. As agricultural growth in California expanded to other regions, Vacaville's Japantown contracted; by 1940, it held 2 churches, a Japanese school, over a dozen community organizations, and 6 companies. With the razing of much of the town to make way for military occupation, Vacaville's Japantown never fully re-established after the war. In 2007, the former site of the Buddhist Church was designated as a California historic point of interest.