Which countries have large populations that speak Nilo-Saharan languages?

Nilo-Saharan languages are spoken by large populations across several countries in Africa, spanning from the Nile valley to the Niger River. Key countries with significant Nilo-Saharan speaking populations include:12

• Nigeria: Home to a large number of speakers of the Saharan language Kanuri, which serves as a lingua franca.2
• South Sudan: The primary location for speakers of Dinka, a major Nilotic language.2
• Kenya: Features large populations of Nilotic speakers, including those who speak Kalenjin, Luo, and Teso.2
• Uganda: Home to speakers of languages such as Teso.2
• Tanzania: Includes populations that speak Luo.2
• Mali: A region where the Songhai language is spoken.2
• Sudan: Features various Nilo-Saharan languages, including Nubian, Fur, Zaghawa, and Dinka.3
• Chad: Home to Maban languages like Masalit, as well as Zaghawa.24
• Egypt: Historically home to speakers of Nile Nubian.2
• Ethiopia: Includes speakers of various Surmic languages.2