According to the second volume of "Kadokawa Nihon Chimei Daijiten No. 26 Kyoto-Fu" (Kadokawa dictionary of place-names of Japan, No.26 Kyoto Prefecture), there were officially 577 declared towns in 1980. ('1, 2, and 3-chome, Sasaya-cho' and '4 and 5-chome, Sasaya' are counted as one town respectively.)
区内の公称町名の数は、『角川日本地名大辞典26京都府』下巻によれば577町（1980年現在）である（「笹屋町一・二・三丁目」と「笹屋四・五丁目」をそれぞれ1町とカウントしている）。