I
- (Mpwapwa) Ihwa
- (Mpwapwa) Ilole
- (Bahi District) Ibihwa
- (Kongwa) Ibumila
- (Kongwa) Ibwaga
- (Chamwino) Idifu
- (Chamwino) Idugala
- (Kongwa) Iduo
- (Kongwa) Iduo
- (Mpwapwa) Ifwambo
- (Mpwapwa) Igode
- (Mpwapwa) Igoje
- (Chamwino) Ihimbwa
- (Dodoma Urban District) Ihumwa
- (Mpwapwa) Iyoma
- (Chamwino) Ikowa
- (Mpwapwa) Ikuyu
- (Chamwino) Ilangali
- (Chemba) Ilase
- (Dodoma Urban District) Ilindi
- (Bahi District) Imbo
- (Dodoma Urban District) Ipala
- (Mpwapwa) Ipera
- (Chamwino) Iringa-Mvumi
- (Mpwapwa) Irondo
- (Kondoa) Isabe
- (Chamwino) Itiso
- (Kondoa) Itundwi