The councillors were elected for electoral divisions corresponding to the parliamentary constituencies that had been created by the Representation of the People Act 1884.

The council was elected by First Past the Post with each elector having two votes in the dual member seats.

As with the SDF, the BSP was opposed to socialists having electoral pacts with Liberals and they were critical of Labour Party branches for working with the Progressives in London.

Although the Progressives lost ground, they comfortably retained their position as main challengers to the Municipal Reformers in those seats where socialists stood.

In Woolwich, where the Labour candidates were given a free run against the Municipal Reform pair, they also lost.

After the elections, there were ten aldermanic vacancies and the following alderman were appointed by the newly elected council on 13 March 1913;[3][4] To serve until 1919: To serve until 1916: There were eight by-elections to fill casual vacancies during the term of the ninth London County Council.

The legislation remained in force for the rest of the eleventh county council's existence.

There were four casual vacancies among the aldermen in the term of the eleventh London County Council, which were filled as follows:[23]