Demographic features of the population of Zambia include population density, ethnicity, education level, health of the populace, economic status, religious affiliations and others aspects of the population.

Zambia's youthful population consists primarily of Bantu-speaking people representing nearly 70 different ethnicities. Zambia's high fertility rate continues to drive rapid population growth, averaging almost 3 percent annually between 2000 and 2010. The country's total fertility rate has fallen by less than 1.5 children per woman during the last 30 years and still averages among the world's highest, almost 6 children per woman, largely because of the country's lack of access to family planning services, education for girls, and employment for women. Zambia also exhibits wide fertility disparities based on rural or urban location, education, and income. Poor, uneducated women from rural areas are more likely to marry young, to give birth early, and to have more children, viewing children as a sign of prestige and recognizing that not all of their children will live to adulthood.

According to the 2022 revision of the World Population Prospects the total population of Zambia is 19,473,125 in 2021, compared to only 2,340,000 in 1950. The proportion of children below the age of 15 in 2010 was 46.4%, 50.6% was between 15 and 65 years of age, while 3.1% was 65 years or older.

Population Estimates by Sex and Age Group (01.VII.2020) (Data based on the 2010 Population Census.):

Registration of vital events is in Zambia not complete. The website Our World in Data prepared the following estimates based on statistics from the Population Department of the United Nations.

Total Fertility Rate (TFR) (Wanted TFR) and Crude Birth Rate (CBR) :