In July, 1969, the household registry section and the related business were subsumed into the District Household Registry Office established with the district director served concurrently as the director of the household registry office and the deputy director of the police station as the deputy director, while the former director of the household registry section as the secretary of the office. In July, 1973, the deputy director of the police station was concurrently appointed as the director of the household registry office, and, then, nominated as the full-time director holding the concurrent post of the deputy director of the police station in July, 1981.

In May, 1992, after "The Program of the Division of Household Registry and Police Affairs" was approved by Executive Yuan, a section was established under the Department (Bureau) of Civil Affairs of the province/municipal government and county/city government, respectively, for processing household registration business and having the civil administration unit manage the household registration business.

Chidu District is located at the southwest end of Keelung City in the outskirts. As the current district area is 56.2659 sq. km., it's the largest among the seven administrative divisions subordinated to Keelung City.

Chidu District, divided into 19 Lis, has a population of 55,519. It is adjacent to Nuannuan District and Jenai District in the east, and Hsichih City, Taipei County, in the west. The district is surrounded by hills, and Taian Waterfall is formed by the ravine streams from the valley. The tourism industries along the primary Maling Gallery, as well as the scenery of Luliao Mountain and Shihkung Lake are all wonderful places for enjoying hiking, swimming, and wide field scanning.

(Information source: Journal of Chidu and Nuannuan District)