اشاریہ	قدر
کل آبادی	8,640,000 افرادUN DESA WPP [2024] 8,642,000 افراد·World Bank WDI [2024] 8,642,000 افراد
وسطی عمر	19.5 سالUN DESA WPP [2024]
متوقع عمر	61.8–62 سالWorld Bank WDI [2024] 61.96 سال·UNDP HDI [2023] 61.79 سال
نسلی گروہ	Temne 35.4%, Mende 30.8%, Limba 8.8%, Kono 4.3%, Korankoh 4%, Fullah 3.8%, Mandingo 2.8%, Loko 2%, Sherbro 1.9%, Creole 1.2% (descendants of freed Jamaican slaves who were settled in the Freetown area in the late-18th century; also known as Krio), other 5% (2019 est.)CIA World Factbook [2025] · 2026 archive
زبانیں	English (official, regular use limited to literate minority), Mende (principal vernacular in the south), Temne (principal vernacular in the north), Krio (English-based Creole, spoken by the descendants of freed Jamaican slaves; a first language for 10% of the population but understood by 95%)CIA World Factbook [2025] · 2026 archive
مذاہب	Muslim 77.1%, Christian 22.9% (2019 est.)CIA World Factbook [2025] · 2026 archive
شہرکاری	کل آبادی کا 44.3% (2023)CIA World Factbook [2025] · 2026 archive
آبادی میں اضافہ	2.12 %World Bank WDI [2024]
شرحِ پیدائش	30.1 فی 1,000World Bank WDI [2024]
شرحِ اموات	8.21 فی 1,000World Bank WDI [2024]
شہری آبادی	45.4 %World Bank WDI [2024]
زبانیں (ساختہ)	Bandi Bassa Bom-Kim Bullom So Dama (Sierra Leone) East Limba Eastern Maninkakan Gola Klao Kono (Sierra Leone) Krio Kuranko Loko Mende (Sierra Leone) N'Ko Northern Kissi Pular Sankaran Maninka Sherbro Sierra Leone Sign Language Southern Kisi Susu Timne Vai West-Central Limba Yalunka Glottolog [2026]