Some municipalities took their names from the county names which correspond to the provincial names; these municipalities were the part of the county; the examples include Iyo City, Tosa-cho, and Satsuma-cno (former Satsuma-cho in which Chinese characters were used).
国名と一致する郡名をその郡の一部が名乗ったものには、伊予市、土佐町、さつま町（旧薩摩町）などがある。