The Japan Population Census 1975 covered topics of employment, household size, and housing conditions. As of October 1, 1975, the total population of Japan was 111,939,643. Large-scale censuses are conducted every ten years in Japan, and simplified censuses (like the 1975 census) occur every 5 years after a large-scale census.

The report includes tabulations from a Twenty Percent Sample on several subjects, including age, sex, marital status, occupations, industry, and socio-economic groups.

This source appears in the United Nations Demographic Yearbook.