Demographic features of the population of São Tomé and Príncipe include population density, ethnicity, education level, health of the populace, economic status, religious affiliations and other aspects.

Six groups are identifiable: Although a small country, São Tomé and Príncipe has four national languages: Portuguese (the official language, spoken by 95% of the population), and the Portuguese-based creoles Forro (85%), Angolar (3%) and Principense (0.1%).

In the 1970s, there were two significant population movements—the exodus of most of the 4,000 Portuguese residents and the influx of several hundred São Toméan refugees from Angola.

[2] Population Estimates by Sex and Age Group (01.VII.2017): [3] Registration of vital events is in São Tomé & Príncipe not available for recent years.

[4] [5] [6] Fertility data as of 2008-2009 (DHS Program):[7] Mestiços, angolares (descendants of Angolan slaves), forros (descendants of freed slaves), serviçais (contract laborers from Angola, Mozambique, and Cape Verde), tongas (children of serviçais born on the islands) and Europeans (primarily Portuguese).