| History |
- Oct. 1, 1925 (Simple National Census) : The first Population Census
- Oct. 1, 1930 (Joseon National Census) : Economic activities e.g. occupation were included for the first time
- Oct. 1, 1935 (Joseon National Census)
- Oct. 1, 1940 (National Census)
- May 1, 1944 (Simple National Census)
- May 1, 1949 (Population Census)
- Changed the title of survey (Simple National Census → Population Census)
- Included details of internal migration for the first time
- Sep. 1, 1955 (Simple Population Census)
- Dec. 1, 1960 (National Population and Housing Census)
- Changed the title to「National Population and Housing Census」by including details related to housing for the first time with the support from UN Statistics Agency
- 20% sample collection of details related to economic activities and childbirth capacity
- Established the concept of labor force
- Jun. 1962 : Approval of statistical production
- Oct. 1, 1966 (Population Census) : Joint administration of 10% sampling survey (economic activities and childbirth capacity)
- Oct. 1, 1970 (Population and Housing Census) : Joint administration of 10% sampling survey (details of economic activities, birth capacity, internal migration and housing)
- Oct. 1, 1975 (Population and Housing Census) : Joint administration of 5% sampling survey (details of economic activities, birth capacity, population movement and housing)
- Nov. 1, 1980 (Population and Housing Census)
- Changed the reference date of survey (Oct.1 → Nov.1)
- Joint administration of 15% sampling survey (economic activities, birth capacity and internal migration)
- Nov. 1, 1985 (Population and Housing Census) : Administration of complete survey of the previous items to add items on surname, family origin and religion
- Nov. 1, 1990 (Population and Housing Census)
- Joint administration of 10% sampling survey (details of economic activities, birth capacity, internal migration, commuting and attending school and households)
- Introduced OMR system of data input
- Nov. 1, 1995 (Population and Housing Census)
- Joint administration of 10% sampling survey (details of economic activities, commuting and attending school, internal migration and households)
- Administered survey on empty houses by using empty house questionnaires
- Nov. 2000 (Population and Housing Census)
- Joint administration of 10% sampling survey (details of economic activities, population movement, the aged, informatization and households)
- Introduced input methods by respondents for apartment areas
- Introduced input method by local PC
- Nov. 1, 2005 (Population and Housing Census)
- Joint administration of 10% sampling survey (details of economic activities, internal migration, commuting & attending school, low fertility rate, the aged and a part of households)
- Change in survey periods and workload of surveyors: change from the 10-day-long survey to the 15-day-long survey, and adjustment of workload per surveyor
- Introduced a Web-based input system
- Introduced an Internet-based survey system
- Introduced training programs through the cyber space
- Focused on low fertility rate, ageing and quality of residence
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