According to the 2019 census the population was 9.41 million with ethnic Belarusians constituting 84.9% of Belarus’s total population. Minority groups include: Russians (7.5%), Poles (3.1%), and Ukrainians (1.7%). Belarus has a population density of about 50 people per square kilometer (127 per sq mi); 70% of its total population is concentrated in urban areas. Minsk, the nation’s capital and largest city, was home to 1,937,900 residents in 2015. Gomel, with a population of 481,000, is the second-largest city and serves as the capital of the Homiel Voblast. Other large cities are Mogilev (365,100), Vitebsk (342,400), Hrodna (314,800) and Brest (298,300).

Like many other Eastern European countries, Belarus has a negative population growth rate and a negative natural growth rate. In 2007, Belarus’s population declined by 0.41% and its fertility rate was 1.22, well below the replacement rate. Its net migration rate is +0.38 per 1,000, indicating that Belarus experiences slightly more immigration than emigration. As of 2015, 69.9% of Belarus’s population is aged 14 to 64; 15.5% is under 14, and 14.6% is 65 or older. Its population is also aging; the median age of 30–34 is estimated to rise to between 60 and 64 in 2050. There are about 0.87 males per female in Belarus. The average life expectancy is 72.15 (66.53 years for men and 78.1 years for women). Over 99% of Belarusians aged 15 and older are literate.