The Walnut City Council consists of five elected council members selected by the residents of Walnut. Council members serve a term of four years with a rotating election schedule of every two years. 

City Council meetings are held on the second and fourth Wednesdays of each month at 7:00 p.m. City Council meetings are held in the Council Chambers in the City Hall located at  21201 La Puente Road. 

Every twelve months, a new mayor and mayor pro tem are selected from the Council by their fellow council members.

Top row: Council Member  Andrew Rodriguez, Council Member Bob Pacheco, and Council Member Eric Ching; Bottom row: Mayor  Mary Su and Mayor Pro Tem Nancy Tragarz