The average household size was 2.86 and the average family size was 3.30. In the city, the population was spread out with 33.4% under the age of 18, 6.3% from 18 to 24, 30.0% from 25 to 44, 19.9% from 45 to 64, and 10.5% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 92.3 males. For every 100 females age 18 and over, there were 87.3 males. The median income for a household in the city was $57,163, and the median income for a family was $65,781. Males had a median income of $50,326 versus $30,683 for females. The per capita income for the city was $24,818. About 6.2% of families and 6.3% of the population were below the poverty line, including 6.9% of those under age 18 and 11.6% of those age 65 or over. Andover has a thriving local business community. Vornado Air is headquartered in Andover. The community is served by Andover USD 385 public school district, and has two high schools (Andover High School and Andover Central High School), two middle schools, and six elementary schools. A branch campus of Butler Community College is located in Andover. Notable individuals who were born in or have a connection to Andover include: