This is a list of councillors and aldermen elected or co-opted to the London County Council from its creation under the Local Government Act 1888 until 1919. There were nine triennial elections of the whole council during this period. Elections were postponed for the duration of the First World War. Elections resumed in 1919 under new electoral boundaries and are detailed in List of members of London County Council 1919–37.
Elections of councillors were held every three years. There were 118 councillors, with four elected to represent the City of London and two each for 57 electoral divisions. The divisions were identical to the constituencies for elections to the United Kingdom House of Commons that had been created by the Redistribution of Seats Act 1885. The Progressive Party won a majority of seats in the 1889 elections, and retained it until 1907.
Earl of Denbigh (elected 1 February 1896)
William Willis (elected 22 July 1893)
Fred Henderson (resigned 27 March 1893 following his imprisonment)
Edmund Russborough Turton (elected unopposed 8 February 1893)
Cecil Maurice Chapman (elected 19 November 1895)
Dr William Farewell Blake (elected at by-election 2 July 1892)
Dr. Elijah Baxter Forman elected at by-election 11 May 1891
Dr Thomas Bateman Napier (elected 25 November 1893)
Richard Baxter Doake (elected at by-election 29 October 1892)
Charles Thompson Beresford-Hope (elected at by-election 15 February 1893)
Richard Atkinson Robinson (elected unopposed 14 November 1896)