This paper reviews the progress of the census publication program and the demographic studies that have been completed as a result of the 1980 Malaysian Census. One of the major projects carried out by the Department of Statistics in consultation with the Economic Planning Unit and the National Population and Family Development Board was making population projections for Malaysia for the period 1985-2000 and exploratory projections to the year 2150. Fertility levels for the projected period were derived by extrapolating past trends in total fertility rates. Projections of fertility levels from 1985 to 2000 are based on a linear relationship of the ratio of the total fertility of the state to that of Peninsular Malaysia for the period 1970 to 1980. Current population estimates by 5 year age group, sex, and broad ethnic group for the Peninsular Malaysia, Sabah, and Sarawak regions are obtained. The Malaysia country study demonstrates the feasibility of using life expectancy as a means of integrating a range of socioeconomic and demographic statistics available for Peninsular Malaysia from a variety of sources. In Sabah and Sarawak, life expectancies at birth for the Chinese are computed by conventional means from registration data for 1970 and 1980, and are compared with corresponding estimates for Peninsular Malaysia; in both periods, the Sabah and Sarawak estimates are similar to the Peninsular Malaysia estimates. The P/F ratio method shows that birth registration in Sabah is quite complete, and the birth data are thus slightly adjusted upwards. In Sarawak, evidence suggests that registration of births is almost complete among the ethnic groups who are either more urbanized or less concentrated in the interior (the Chinese).