Officers of the City; June 20, 1900; Identifiable in the center are Reporter C.R. Denel, Mayor O.L. Clark, City Clerk White, and City Attorney Guy Kennedy (MLSC) The following is a historic roster of councilmembers serving on the Chico City Council. See also Mayor, and History of Chico.

• February 5, 1872 - First municipal election for members at-large of the Board of Trustees. Upon election, the first trustees chose the length of their terms by lot.

• February 3, 1873 - H.T. Batchelder and J.J. Stewart elected.
• March 3, 1873 - Election of J.J. Stewart declared null and void because he was not a qualified elector on election day.
• March 8, 1873 - J.E. Shearer elected by the Board to fill Stewart's vacated position.

• February 7, 1874 - Election

• February 1, 1875 - James McCormick elected to replace Kempf.
• February 22, 1875 - G.H. Holbrook resigns and is replaced by Kempf.

• February 8, 1876 - Municipal election

• November 24, 1876 Stewart resigns, replaced by C.M. White.
• February 5, 1877 - Municipal election

• October 1, 1877 - Albert Allen appointed to fill vacancy by James McCormick.
• February 6, 1878 - Municipal election

• February 5, 1879 - First municipal election held at two polling places. One was at Town Hall and the other was at the Western Hose House.

• October 6, 1879 - Findley resigned
• October 11, 1879 - D.W. Dorn appointed by Board to replace Findley.
• February 3, 1880 - Municipal election

• February 9, 1881 - Municipal election

• January 9, 1882 - Camper resigned, replaced by M.V. Loy.
• February 8, 1882 - Municipal election

• February 7, 1883 - Municipal election

• February 4, 1884 - Municipal election

• February 2, 1885 - Municipal election

• February 3, 1886 - Municipal election

• February 7, 1887 - Municipal election

• April 4, 1887 - A.M. Barnard resigned, replaced by A. McFadyen.
• February 7, 1888 - Municipal election

• March 4, 1889 - Municipal election

• March 3, 1890 - Municipal election

• June 9, 1890 - Wayland and Bryan resigned, and replaced by William Hawkins and E.E. Canfield. Mery replaced Wayland as President.
• February 13, 1891 - Zion Moore died.
• March 2, 1891 - Municipal election

• February 1, 1892

• February 6, 1893

• August 6, 1894 - George Snook died, was replaced on the Board by A.G. Eames.
• December 4, 1894 - Petition to reorganize as the City of Chico.
• February 4, 1895 - Municipal election to reorganize the Town of Chico as the City of Chico: YES - 499, NO - 84.

• February 11, 1895 - Municipal election for Board of Trustees under reorganization procedure. All elected to one-year terms.

• 1896

• April 12, 1897 - First election under ward system. First Ward polling place - City Hall, Second Ward polling place - Bruce and Young Building, Third Ward polling place - Western Hose House, Fourth Ward polling place - Chico Hotel at the Junction.

• April 10, 1899 - Municipal election (held every two years henceforth)

• April 8, 1901 - Municipal election

• April 13, 1903 - Municipal election

• April 10, 1905 - Municipal election

• April 8, 1907 - Municipal election (one trustee elected from each ward to serve concurrent four-year terms).

• April 10, 1911 - Municipal election

• April 13, 1915 - Municipal election

• May 6, 1919 - Municipal election

• June 4, 1921 - An election was held to choose a Board of Freeholders charged with framing a City Charter. Elected were: Nellie Allen, John Burdon, W.J. Costar, W.B. Dean, Louis Faulkner, Henry Haile, Ed Harkness, W.W. Head, H.E. Nichols, Martin Collins Polk, S.A. Reynolds, Harry Roth, A.M. Scott, Margaret Warren, John Waterland
• April 16, 1923 - At-large election reinstated under Charter.

• May 8, 1924 - Faulkner and Leeper resigned, replaced by J.R. Young and M.B. Pulley.
• April 20, 1925 - Municipal election

• April 12, 1927 - Municipal election

• Decemeber 26, 1928 - Daniel Zumwalt sworn in to replace vacancy left by the death of O.T. Miller.
• April 15, 1929 - Municipal election

• April 17, 1933 - Municipal election. This election also included a question on the recall of councilmembers Crow, Kilpatric and Waters. The recall was defeated.

• August 1, 1933 Robert Crow resigned
• January 2, 1934 W.F. Matthews elected to fill unexpired term of Robert Crow.
• April 15, 1935 - Municipal election

• April 19, 1937 - Municipal election

• August 17, 1938 - Mayor Bainbridge resigned. Richards becomes Mayor. F.W. Seydel chosen to fill vacancy left by Bainbridge.
• April 10, 1939 - Municipal election

• February 12, 1940 - Frank Tuttle died.
• February 20, 1940 - Earl Bevins appointed to fill Frank Tuttle's unexpired term.
• April 21, 1941 - Municipal election

• April 19, 1943 - Municipal election

• June 24, 1943 - Walen Cearley resigned.
• June 26, 1943 - F.M. Pfeiffer appointed to succeed Walen Cearley.
• April 16, 1945 - Municipal election

• April 21, 1947 - Municipal election

• April 18, 1949 - Municipal election

• April 16, 1951 - Municipal election

• February 17, 1953 - Reinhardt resigns, replaced by Richard Price.
• April 20, 1953 - Municipal election

• April 18, 1955 - Municipal election

• April 15, 1957 - Municipal election

• August 20, 1957 - March Pine appointed to fill vacancy left by resignation of Bruce Ogilvie.
• April 20, 1959 - Municipal election

• May 2, 1961 - City Charter amended to provide for seven councilmembers.

• September 5, 1961 - Harry McGowan appointed Vice Mayor after James Derryberry resigned. Carl Leverenz appointed to fill vacancy.
• May 7, 1963 - Municipal election

• May 5, 1964 - Ross Lawler resigned.
• May 11, 1964 - Joe Brattan, Jr. appointed to fill vacancy.
• May 4, 1965 - Municipal election

• March 22, 1966 - Ted Snider resigned. William Nichols appointed to fill vacancy.
• May 2, 1967 - Muniipal election

• May 6, 1969 - Municipal election

• February 3, 1970 - Eric Bathen resigned.
• February 17, 1970 - Gordon Gibb appointed to fill vacancy.
• March 3, 1970 - Robert Stone resigned.
• March 9, 1970 - Carol Burnett appointed to fill vacancy.
• May 4, 1971 - Municipal election

• March 14, 1972 - William Nichols resigned, Vice Mayor Bathen became Mayor, councilmember Stewart became Vice Mayor.
• April 4, 1972 - Loren Andrews appointed to fill vacancy.
• May 1, 1973 - New council takes office

• May 6, 1975 - New council takes office

• December 7, 1976 - Patrick McLafferty resigned.
• January 4, 1977 - Fredrick Dannenfelser appointed to fill vacancy.
• May 3, 1977 - New council takes office

• April 4, 1978 - Martin Jeffries resigned, Vacancy declared April 18.
• May 16, 1978 - Chris Mahan appointed to fill vacancy.
• May 1, 1979 - New council takes office

• May 5, 1981 - New council takes office

• May 3, 1983 - New council takes office

• October 2, 1984 - William Brashears resigned.
• October 16, 1984 - Anne Dorr Longazo appointed to fill vacancy.
• May 7, 1985 - New council takes office

• June 30, 1986 - Volney Lang resigned.
• July 1, 1986 - Charles Nelson appointed to vacancy.
• December 2, 1986 - New council takes office

• December 6, 1988 - New council takes office

• March 30, 1990 - Bill Nichols resigned.
• April 17, 1990 - James Fletcher appointed to fill vacancy.
• December 4, 1990 - New council takes office

• June 25, 1991 - Houx resigned after being appointed to the Board of Supervisors by the Governor.
• July 16, 1991 - James Owens appointed to fill vacancy.
• December 1, 1992 - New council takes office

• December 6, 1994 - New council takes office

• November 28, 1996 - Ted Hubert died prior to assuming new term of office after being re-elected November 5, 1996.
• December 3, 1996 - New council takes office. Ted Hubert posthumously named Honorary Mayor. Councilmembers begin sharing Mayor pro tempore responsibilities on a rotating basis.

• May 13, 1997 - William Johnston sworn in as new councilmember to fill vacancy left by Ted Hubert after being elected at a special election on May 6, 1997.
• May 20, 1997 - Full council seated and Rick Keene is chosen as Mayor, ending the rotating pro tempore system.

• December 1, 1998 - New council takes office

• October 15, 1999 - William Johnston died
• November 16, 1999 - Sheryl Lange appointed to fill the vacnacy.
• December 5, 2000 - New council takes office

• December 3, 2002 - New council takes office

• May 21, 2004 - Coleen Jarvis died.
• June 14, 2004 - The City Council could not achieve a majority vote for any nomination to fill the vacancy. No special election was scheduled, and the seat was left vacant.

• December 7, 2004 - New council takes office

• December 5, 2006 - New council takes office

• December 2, 2008 - New council takes office

• December 7, 2010 - New council takes office

• January 3, 2011 - Larry Wahl resigns from the Chico City Council immediately before being sworn in as a Butte County Supervisor.
• February 1, 2011 - Bob Evans is appointed to fullfill the unexpired term vacated by Larry Wahl. Evans was officially sworn into office on February 2, 2011, with a formal swearing in ceremony occuring on February 15, 2011.
• February 2, 2011 - New council takes office

• December 4, 2012 - New council sworn in