Beginning in 2019, School and City Elections will be combined and held in November of odd-numbered years. A City election is used to elect the Mayor and Council Members and any other elected city officials. In Pottawattamie, the cities of Carter Lake and Council Bluffs have provisions where if enough candidates file to run for Mayor or City Council a city primary election would be held in October to determine the candidates for the regular city election in November. The city of Avoca has a runoff election provision. A School Election is an election to select School Board members for school districts within Pottawattamie County.