Preferred language name(s): Kirundi
Alternative names: Rundi, Urundi
Language classification: Niger-Congo
Geographical areas where spoken: Burundi. Also found in Tanzania, Democratic Republic of the Congo, Uganda, Rwanda
Approximate number of speakers: 10,000,000
Other languages spoken in the community: English, French, Swahili
Official language(s) in your country: Kirundi, English
Does your language have a widely accepted writing system?
Yes, using the Latin script. There is also Braille. 
If yes, what materials are written?
Literature, Newspapers, Periodicals, Radio, TV, Videos, Dictionary, Grammar, Texts, Bible

National Language

Inter-generational transmission:
All community members speak the language
Absolute number of speakers:
>100000
Speaker number trends:
Most community members are speakers; speaker numbers are diminishing, but at a slow rate. Children are using more English.
Domains of use of the language:
 
Used in government, mass media, education and the workplace; most speakers value their language education and literacy in the language are valued by most community members; government and other institutions support the language.

 
Sourced from Ethnologue.
Simons, Gary F. and Charles D. Fennig (eds.). 2017. Ethnologue: Languages of the World, Twentieth edition. Dallas, Texas: SIL International. Online version: http://www.ethnologue.com