[1] The former governor, Márcio França, affiliated to the Brazilian Socialist Party (PSB) took office with the resignation of Geraldo Alckmin on 6 April 2018, and was eligible for a second term and ran for reelection.

[2] The previous gubernatorial election in the state was held in October 2014, in which Geraldo Alckmin of the Brazilian Social Democracy Party was re-elected in the first round with 57.31% of the vote, against 21.53% of Paulo Skaf and 18.22% of Alexandre Padilha.

[3] In the gubernatorial election, the businessman and the former Mayor of São Paulo, João Doria, won the first round at first place with 31.77% of the vote, qualifying for a second round against Márcio França, governor of São Paulo, who got 21.53% of the vote.

[5] For the Federal Senate election, federal deputies Major Olímpio (PSL) and Mara Gabrilli (PSDB) were elected to the seats that were once occupied by Aloysio Nunes and Marta Suplicy.

Eduardo Suplicy (PT), who was councillor of São Paulo at the time, came in third with 13.32% of the vote, and federal deputy Ricardo Tripoli (PSDB) in fourth with 9.00% of the vote.