 About 2.4% of families and 3.4% of the population were below the poverty line, including 3.3% of those under age 18 and 3.4% of those age 65 or over.Wylie has a council-manager form of government, composed of a mayor and six council members (elected at large) along with an appointed city manager.The city has operated under a city charter (home rule) since 1985, when voters approved the measure in a referendum.