 As of the 2010 census the population was 41,427, having grown 173.8% since the census of 2000, when 15,132 people, 5,085 households, and 4,108 families resided in the city.The population density was 781.2 people per square mile (301.6/km2).The 5,326 housing units averaged 275.0 per square mile (106.2/km2).