Siaya County is made up of 6 sub-counties;
1. Alego Usonga
2. Bondo
3. Gem
4. Rarieda
5. Ugenya
6. Ugunja
This is how the Siaya county wards are spread in the sub counties;
These are the members of Siaya County assembly 2017 – 2022.
1. Hon. Adida Lorna Achieng O North Sakwa
2. Hon. Audi David Onyango South Gem
3. Hon. Awino Abigael Perpetua Central Gem
4. Hon. Bonyo Booker Washington North Uyoma
5. Hon. Kidera Joseph Wandera Sidindi
6. Hon. Madialo Sylvester Otieno Usonga
7. Hon. Mboha Joseph Oloo South East Alego
8. Hon. Ochieng Fredrick Opanga North Ugenya
9. Hon. Ochieng Willis Okoth West Yimbo
10. Hon. Ochola Nick Evance Okoth North Gem
11. Hon. Odawa Erick Z. Abungu Sigomre
12. Hon. Odawa Vincent Otieno North Alego
13. Hon. Odhiambo Andiego Charlton Cental Sakwa
14. Hon. Odhiambo Edwin Otieno South Sakwa
15. Hon. Odongo Andericus Oduor West Ugenya
16. Hon. Oduor Joseph Peter Omondi Ukwala
17. Hon. Okumu Felix Ouma West Alego
18. Hon. Okwiry Susan Achieng West Gem
19. Hon. Olasi Samuel Onyango West Uyoma
20. Hon. Omoro Fredrick Oluoch East Ugenya
21. Hon. Onyango William Kinyanyi Yala Township
22. Hon. Oor Benarn Peter Odero Ugunja
23. Hon. Oriaro Leonard Otieno Central Alego
24. Hon. Otare James Obiero Siaya Township
25. Hon. Otiato Francis Otieno Yimbo East
26. Hon. Ousa Simeon Nyaji South Uyoma
27. Hon. Oyugi Judith Anyango East Asembo
28. Hon. Siguru Samuel Otieno East Gem
29. Hon.Aringo Maurice Osewe West Sakwa
30. Hon.Auma Ambrose Akuno West Asembo
These were the members of first Siaya county assembly 2013 – 2017.
1. Central Alego Leonard Otieno Oriaro
2. Central Gem Fred Odhiambo Ouda
3. Central Sakwa Joanes Andiego Odongo
4. East Asembo William Owiti
5. East Gem Booker Otieno Minami
6. East Ugenya Eric Oduya Ndonji
7. North Alego Pius Ombiyo Ogutu
8. North Gem Nicholas Ayima Were
9. North Sakwa Lorna Achieng Ochieng Adida
10. North Ugenya Benson Onyango Omondi
11. North Uyoma Charles Omollo Owii
12. Siaya Township James Obiero Otare
13. Sidindi Joseph Omondi Agoko
14. Sigomere Andrew Omwende Omollo
15. South East Alego Joshua Aggrey Owiti Z. Osuri
16. South Gem Peter Lolwe Ombee
17. South Sakwa Nicholas Ochieng Aneme
18. South Uyoma Christopher Apiyo Apiyo
19. Ugunja Edwin Martin Otieno
20. Ukwala Odinga Jackton Ouma
21. West Alego Peter Oduor Muhulah
22. West Asembo James Odhiambo Munda
23. West Gem Jared Abayo Onyango
24. West Sakwa John Ombewa Gare
25. West Ugenya Stephen Ouma Adera
26. West Uyoma Mathew Odeny Onduru
27. West Yimbo Willis Okoth Ochieng
28. Yala Township Joseph Oluoch Awuor
29. Yimbo East Elisha Omondi Okuku
1. Alego Usonga
2. Bondo
3. Gem
4. Rarieda
5. Ugenya
6. Ugunja
This is how the Siaya county wards are spread in the sub counties;
1. Hon. Adida Lorna Achieng O North Sakwa
2. Hon. Audi David Onyango South Gem
3. Hon. Awino Abigael Perpetua Central Gem
4. Hon. Bonyo Booker Washington North Uyoma
5. Hon. Kidera Joseph Wandera Sidindi
6. Hon. Madialo Sylvester Otieno Usonga
7. Hon. Mboha Joseph Oloo South East Alego
8. Hon. Ochieng Fredrick Opanga North Ugenya
9. Hon. Ochieng Willis Okoth West Yimbo
10. Hon. Ochola Nick Evance Okoth North Gem
11. Hon. Odawa Erick Z. Abungu Sigomre
12. Hon. Odawa Vincent Otieno North Alego
13. Hon. Odhiambo Andiego Charlton Cental Sakwa
14. Hon. Odhiambo Edwin Otieno South Sakwa
15. Hon. Odongo Andericus Oduor West Ugenya
16. Hon. Oduor Joseph Peter Omondi Ukwala
17. Hon. Okumu Felix Ouma West Alego
18. Hon. Okwiry Susan Achieng West Gem
19. Hon. Olasi Samuel Onyango West Uyoma
20. Hon. Omoro Fredrick Oluoch East Ugenya
21. Hon. Onyango William Kinyanyi Yala Township
22. Hon. Oor Benarn Peter Odero Ugunja
23. Hon. Oriaro Leonard Otieno Central Alego
24. Hon. Otare James Obiero Siaya Township
25. Hon. Otiato Francis Otieno Yimbo East
26. Hon. Ousa Simeon Nyaji South Uyoma
27. Hon. Oyugi Judith Anyango East Asembo
28. Hon. Siguru Samuel Otieno East Gem
29. Hon.Aringo Maurice Osewe West Sakwa
30. Hon.Auma Ambrose Akuno West Asembo
These were the members of first Siaya county assembly 2013 – 2017.
1. Central Alego Leonard Otieno Oriaro
2. Central Gem Fred Odhiambo Ouda
3. Central Sakwa Joanes Andiego Odongo
4. East Asembo William Owiti
5. East Gem Booker Otieno Minami
6. East Ugenya Eric Oduya Ndonji
7. North Alego Pius Ombiyo Ogutu
8. North Gem Nicholas Ayima Were
9. North Sakwa Lorna Achieng Ochieng Adida
10. North Ugenya Benson Onyango Omondi
11. North Uyoma Charles Omollo Owii
12. Siaya Township James Obiero Otare
13. Sidindi Joseph Omondi Agoko
14. Sigomere Andrew Omwende Omollo
15. South East Alego Joshua Aggrey Owiti Z. Osuri
16. South Gem Peter Lolwe Ombee
17. South Sakwa Nicholas Ochieng Aneme
18. South Uyoma Christopher Apiyo Apiyo
19. Ugunja Edwin Martin Otieno
20. Ukwala Odinga Jackton Ouma
21. West Alego Peter Oduor Muhulah
22. West Asembo James Odhiambo Munda
23. West Gem Jared Abayo Onyango
24. West Sakwa John Ombewa Gare
25. West Ugenya Stephen Ouma Adera
26. West Uyoma Mathew Odeny Onduru
27. West Yimbo Willis Okoth Ochieng
28. Yala Township Joseph Oluoch Awuor
29. Yimbo East Elisha Omondi Okuku