The Japanese surnames etymology dictionary.
① Topography . From the favorite "Fuku" and the round land. From Fukumaru gate in the gate division system that was in the Edo period. An example of the location of the gate. Ken-Kagoshima Izumi-Shi Shitachishiki-cho, Kagoshima-Ken Satsuma-Gun Satsuma-Chou Nakatsugawa, Kagoshima-Ken Aira-Shi Kamou Shirootoko, Kagoshima-Ken Kirishima-Shi Hayato-cho Togo, Kagoshima-Ken Soo-Shi Osumi-cho Suda Tree, Kagoshima-ken Soo-shi Suwakicho Suwakata, Miyazaki-ken Miyazaki-shi Takaoka Town Shimokunaga.