This study aims to forecast the future demand for residential land in each municipality and the whole country. To this end, this study develops two separate models: a per capita living space estimation model and a population projection model. For the former, the whole country is classified into seven municipality groups and a model is established for each group. According to the results, county residents in the non-capital region are expected to have the largest per capita living space of 32.93㎡ in 2020, while city residents in the capital region to have the smallest of 25.39㎡. The future population of each municipality is projected with the use of Cohort survival method and regression method. In terms of the population increase rate, Yongin ranks the highest, followed by Gwangju(Gyeonggi), Paju, Hwaseong and Ansan. All of them are located in the capital region. Based on these results, the future demand for additional housing space and residential land is derived. By 2020, an additional housing space of 501㎢, or 5.9 million housing units, are expected to be needed, with the demand for new residential development area reaching 767㎢. By city, Bucheon is found to have the highest ratio of the demand for new residential area in comparison with 'urban area' designated by the National Land Planning Law, followed by Anyang, Suweon, Seoul and Seongnam. By municipality group, Seoul/Incheon ranks the highest with the annual rate of 0.79 percent, followed by cities in the capital region, and metropolises in the non-capital region. Counties in the non-capital region are forecasted to have the annual rate of 0.06 percent, far lower than other groups.