The election saw incumbent mayor Manuela Carmena's More Madrid platform becoming the largest political force in the City Council, but the net loss of two seats for the left-from-centre bloc—including the Spanish Socialist Workers' Party (PSOE)—deprived them of a majority.

Instead, the opposition People's Party (PP), despite obtaining its worst historical result in a municipal election in Madrid, was able to get its candidate José Luis Martínez-Almeida as the new local mayor through an alliance with the liberal Citizens (Cs) and the far-right Vox.

[2] Voting for the local assembly was on the basis of universal suffrage, which comprised all nationals over 18 years of age, registered and residing in the municipality of Madrid and in full enjoyment of their political rights, as well as resident non-national European citizens and those whose country of origin allowed Spanish nationals to vote in their own elections by virtue of a treaty.

[1][2] Councillors were allocated to municipal councils based on the following scale: The mayor was indirectly elected by the plenary assembly.

The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour.