| Total population | 5,240 peopleUN DESA WPP [2024] |
| Median age | 50.7 yearsUN DESA WPP [2024] |
| Life expectancy | No authoritative open source found |
| Ethnic groups | St. Helena 82.1%, UK 7.6%, South Africa 3.6%, Ascension 2.8%, other 3.9% (2021 est.); note: data represent population of Saint Helena by country of birthCIA World Factbook [2025] · 2026 archive |
| Languages | EnglishCIA World Factbook [2025] · 2026 archive |
| Religions | Anglican 63.2%, unspecified 11.4%, no religion 9%, Jehovah's Witness 3.8%, Baptist 2.3%, Salvation Army 2%, Roman Catholic 2.2%, Seventh Day Adventist 1.9%, New Apostolic 1.6%, other Christian 1.4%, other 1.1% (2021 est.); note: data represent Saint Helena onlyCIA World Factbook [2025] · 2026 archive |
| Urbanization | 40.7% of total population (2023)CIA World Factbook [2025] · 2026 archive |
| Population growth | No authoritative open source found |
| Birth rate | No authoritative open source found |
| Death rate | No authoritative open source found |
| Urban population | No authoritative open source found |
| Languages (structured) | EnglishGlottolog [2026] |