Therefore, Gun-ku-cho-son Henseiho (Act for the alignment of local government system), which authorized the existing Gun as an administrative unit and placed Gunyakusho (a district office) and Guncho (a district headman chosen by the government), was established in 1878.
このことから、1878年（明治11年）郡区町村編制法を制定し、旧来の郡を行政単位として認め、郡役所と郡長（官選）が置かれた。