- Ikokuma
- Ikushimachō
- Ikuta
- Imabetsu
- Imaichi
- Imaizumi
- Imogataira
- Imoritai
- Inaba
- Inada
- Inada
- Inagakichō-chitose
- Inagakichō-fukutomi
- Inagakichō-hozumi
- Inagakichō-numadate
- Inagakichō-numazaki
- Inagakichō-shigeta
- Inagakichō-shimoshigeta
- Inagakichō-toyokawa
- Inagakichō-yoshide
- Inakadate
- Inami
- Inamoto
- Inaoichō
- Inarimachi
- Inarisawa
- Inayoshi
- Inō
- Inuotose
- Ippaimori