Aurora is a town in central York Region in the Greater Toronto Area, within the Golden Horseshoe of Southern Ontario, Canada. It is located north of the City of Richmond Hill and is partially situated on the Oak Ridges Moraine. In the Canada 2021 Census, the municipal population of Aurora was the 92nd largest in Canada, compared to 95th for the 2016 Census and 97th for the 2006 Census. Aurora is twinned with Leksand, Sweden.