Kisii County has nine(9) constituencies; Namely Bonchari (Mp John Oroo Oyioka), Bomachoge Borabu (Mp Zadoc Abel Ongutu), Bomachoge Chache (Mp Miruka Ondieki Alpha), Kitutu Chache South (Mp Richard Onyonka), Nyaribari Masaba (Mp Ezekiel Machogu Ombaki), Kitutu Chache North (Mp Jimmy Nuru Angwenyi), Bobasi (Mp Innocent Obiri Momanyi), South Mugirango (Mp Silvanus Osoro Onyiego) and Nyaribari Chache (Mp Richard Nyagaka Tongi)
Each Constituency is subdivided into several wards depending on the size and population.
The table below shows comprehensive information concerning constituencies and wards in Kisii county.
| No. | Constituency | Member of Parliament (MP) | Wards |
| 1. | Bonchari | Hon. John Oroo Oyioka | Bonchari |
| Bogiakumu | |||
| Bokeira | |||
| Riana | |||
| 2. | Bomachoge Borabu | Zadoc Abel Ongutu | Borabu Masaba |
| Boochi Borabu | |||
| Bokiminge | |||
| Magenche | |||
| 3. | Bomachoge Chache | Miruka Ondieki Alpha | Machoge Basi |
| Tendere | |||
| Sengera | |||
| 4. | Kitutu Chache South | Richard Onyonka | Bogusero |
| Bogeka | |||
| Nyakoe | |||
| Kitutu Central | |||
| 5. | Nyaribari Masaba | Ezekiel Machogu Ombaki | Ichuni |
| Nyamasibi | |||
| Masimba | |||
| Gesusu | |||
| Kiamokama | |||
| 6. | Kitutu Chache North | Jimmy Nuru Angwenyi | Monyerero |
| Sensi | |||
| Marani | |||
| Mwamonari | |||
| 7. | Bobasi | Innoncent Momanyi Obiri | Masige West |
| Masige East | |||
| Nyacheki | |||
| Basi Central | |||
| Basi Bogetaorio Bobasi Chache |
|||
| Sameta/Mokwerero | |||
| Bobasi/Boitangare | |||
| 8. | South Mugirango | Silvanus Osoro Onyiego | Tabaka |
| Boikanga | |||
| Bogetenga | |||
| Borabu/Chitago | |||
| Moticho | |||
| Getenga | |||
| 9. | Nyaribari Chache | Richard Nyagaka Tongi | Bobaracho |
| Kisii Central | |||
| Keumbu | |||
| Kiogoro
Birongo |
|||
| Ibeno |