Nationwide local elections for seats in municipality and county councils were held throughout Norway on 12 September 2011. Several municipalities also opened the polling booths on 11 September. For polling stations this meant that two elections, the municipal elections and the ran concurrently. In addition, an advisory referendum was held in Aust-Agder to determine whether to merge the county with Vest-Agder. Term of office was 1 January 2012 until 31 December 2015.