Five tribes settled on this meteorite made of vibranium and called it Wakanda.
Based on the information from The Art of Black Panther, Wakanda is situated between Uganda, Rwanda and the Democratic Republic of the Congo (approximately, as Lake Kivu doesn’t actually border on Uganda).
Many other photographic reference shots for digital backgrounds, or actual plate photography took place in Africa to create the looks of Wakanda. Some of these locations include: farmlands of Uganda and various areas of South Africa.
(Black Panther, 2018)
Wakanda, Establishing Shots
Similar shots of African landscapes were used as background plates for the fictional country of Wakanda in the sequel film. No exact correlations between real-world locations have been made just yet.
(Black Panther: Wakanda Forever, 2022)