South Ribble is a non-metropolitan district and borough of Lancashire, England. Its council is based in Leyland. The population of the Non Metropolitan District at the 2011 Census was 109,057. In May 2007, the council was officially declared "Excellent" by the Audit Commission, gaining its place among the best five district councils in the country. It is the only non-metropolitan district not to be a member of the District Councils' Network.