Kouda 【甲田】5 The Japanese surnames etymology dictionary.
Hokkaidou , Kanagawa-ken · Chiba-ken . Thing . Toyama-ken Toyama-shi Meiji New surname by monk of Takaji Temple's Shingon Temple's monk in Tsukioka Town. "Grain", "Mountain" is used from the mountain of five cereals of the same temple. Tell her that she came to Hokkaidou Utashinai-shi from the same place. Estimated from tradition lived in around 1900.