The Kizu-gawa River (Kyoto Prefecture) runs through here, so in the old days this place prospered as a port for lumber transit; the town name "Kizu" comes from the lumber (in Japanese, "ki") and the port (in Japanese, "zu" or "tsu").
木津川(京都府)が流れており、古くは木材運搬用の港として栄えた（木の津・町名の由来）。