The 2007 Grande Prairie municipal election was held Monday, October 15, 2007. Since 1968, provincial legislation has required every municipality to hold triennial elections. The citizens of Grande Prairie, Alberta, elected one mayor, eight aldermen (all at large), the five Grande Prairie School District No. 2357 trustees (at large), and five of the Grande Prairie Roman Catholic Separate School District No. 28's seven trustees (as Ward 1). Of the 33,210 eligible voters, only 9,693 turned in a ballot, a voter turnout of 29.2%, and an average of 5.9 aldermen per ballot.