| Total population | 1,820 peopleUN DESA WPP [2024] |
| Median age | 36.4 yearsUN DESA WPP [2024] |
| Life expectancy | No authoritative open source found |
| Ethnic groups | Niuean 65.4%, part-Niuean 14%, non-Niuean 20.6% (2017 est.); note: data represent the resident populationCIA World Factbook [2025] · 2026 archive |
| Languages | Niuean 46% (official, a Polynesian language closely related to Tongan and Samoan), Niuean and English 32%, English (official) 11%, Niuean and others 5%, other 6% (2011 est.)CIA World Factbook [2025] · 2026 archive |
| Religions | Ekalesia Niue 61.7%, Latter Day Saints 8.7%, Roman Catholic 8.4%, other 8.2%, not stated 5.1%, none 3.7%, Jehovah's Witnesses 2.7%, Seventh Day Adventist 1.4% (2017 est.)CIA World Factbook [2025] · 2026 archive |
| Urbanization | 48.2% 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) | NiueanGlottolog [2026] |