Population projections are based on the estimated population number by age and sex in the census year and established hypothesis on future trends regarding population changes, i.e. fertility, mortality and migrations, in the following thirty years. The projections are done in five variants: low, medium, high, constant fertility and mortality and variant of zero- migration balance. Hypotheses are set for regions, and population projections present the sum of population projections of the constitutive parts of the Republic of Serbia.