Fukaya was the site of a castle built by the
Uesugi clan in 1456, and later the site of
Okabe Domain a
feudal domain under the
Tokugawa shogunate. In the Edo era,
Fukaya-shuku was a major
post town on the
Nakasendō (中山道) highway, boasting over 80
inns. The town of Fukaya was established within Hanzawa District, Saitama with the establishment of the modern municipalities system on April 1, 1889. Hanzawa District was abolished in 1896, becoming part of
Ōsato District. Fukaya merged with the villages of Aketo, Hatara, Oyori and Fujisawa on January 1, 1955, and was elevated to city status. It annexed the village of Toyosato on April 1, 1973. On January 1, 2006, the towns of
Hanazono,
Kawamoto and
Okabe (all from Ōsato District) were merged into Fukaya. ==Government==