In 2020, there were 61 692 live births and 116 850 deaths recorded in the Republic of Serbia. The natural increase was -55 158. The estimated population number in the Republic of Serbia in 2020 amounted to 6 899 126.

From 2011 to 2020 the number of population in the Republic of Serbia decreased by 384 858, based only on natural increase.

The natural increase rate in the Republic of Serbia was -8.0‰. In 2020, it was positive only in Preševo, Novi Pazar and Tutin.

The largest number of children, 18584, were born to women aged 30–34. The average age of women at child birth was 30.1 years, while the average age of women at birth of the first child was 28.8.

Based on data for 2020, there were 116 850 deaths (60 450 men and 56 400 women) recorded in the Republic of Serbia. The average age at death in the Republic of Serbia was 75.1years.