Local elections were held in parts of Indonesia in the second half of 1957 to elect provincial and regency and city councils. The Communist Party of Indonesia won a larger share of the vote than it had in the 1955 legislative election, the only major party to do so. The PKI's success, and the declining or stagnant support for other parties, caused concern that the PKI might dominate the planned 1959 national legislative elections, one reason these did not take place.