An Assembly Committee is a group of Members of the Assembly designated to do the detailed work of the Assembly. The Members work together towards a common goal, and may work without the restrictions of formality. The following are committees constituted in Tharaka Nithi County Assembly.
- Hon.Kiriko Jacob Murimi Ndeke Chairperson
- Hon. Purity Wanja M” Rithaa Vice Chairperson
- Hon. Lucy Muthoni Ndiga Member
- Hon. Gitonga Leonard Kithuka Member
- Hon. John Joseph Njeru Member
- Hon. Njagi Zachariah Mwaniki Member
- Hon. Karuku Wanja Member
- Hon. John Joseph Njeru Chairperson
- Hon. Lucy Muthoni Ndiga Vice Chairperson
- Hon. Kiriko Jacob Ndeke Member
- Hon. Riungu Nancy Muthoni Member
- Hon. Njagi Joseph Kinyua Member
- Hon. Njagi Zachariah Mwaniki Member
- Hon. Kabii Jones Kinegeni Member
- Hon. Njagi Joseph Kinyua Chairperson
- Hon. Murungi Rael Fatuma Vice Chairperson
- Hon. Marengo Luke Njeru Member
- Hon. Nevert Ntwiga Member
- Hon. Mwaura Joel Mwangi Member
- Hon. Mugao Salvestas Kanyaru Chairperson
- Hon. Mwaura Joel Mwangi Vice Chairperson
- Hon. Nyaga Frankline Mawira Member
- Hon. Nevert Ntwiga Member
- Hon. Murungi Rael Fatuma Member
- Hon. Marengo Luke Nyagah Njeru Chairperson
- Hon. Muchiri Godfrey Murithi Vice Chairperson
- Hon. Kabii Jones Kinegeni Member
- Hon. S. Nderi Justin Kithinji Member
- Hon.Riungu Nancy Muthoni Member
- Hon. Mbae Anita Karimi Chairperson
- Hon. Nyaga Frankline Mawira – Vice Chairperson
- Hon. Mbae Lysbeth Gatiria Member
- Hon. Kamunyu Kennedy Member
- Hon. Purity Wanja M’Rithaa Member
- Hon. Gitonga Morris Maugu Chairperson
- Hon. Karuku Wanja Vice Chairperson
- Hon. S. Nderi Justin Kithinji Member
- Hon. Kathuni Risper Gakii Member
- Hon. Mugao Salvestas Member
- Hon. Nevert Ntwiga Member
- Hon. Godfrey Muchiri Member
- Hon. Kamunyu Kennedy Chairperson
- Hon. Mbae Anita Karimi Vice Chairperson
- Hon. Mbae Lysbeth Gatiria Member
- Hon. Purity Wanja M’Rithaa Member
- Hon. John Joseph Njeru Member
- Hon. Nyaga Frankline Mawira Chairperson
- Hon. Kathuni Risper Gakii Vice Chairperson
- Hon. Anita Karimi Member
- Hon. Gitonga Leonard Kithuka Member
- Hon. Gitonga Morris Maugu Member