Mapleton is a city in Utah County, Utah, United States. It is part of the Provo–Orem Metropolitan Statistical Area. The population was 7,979 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 12.6 square miles (32.6 km), all land. The community lies at an elevation of 4,700 feet (1,400 m) above sea level.
The city is dominated by 10,193-foot (3,107 m) Spanish Fork Peak to the southeast and 7,533-foot (2,296 m) Ether Peak to the northeast. Between the two mountains is Maple Canyon, which is home to Whiting Campground in the Uinta-Wasatch-Cache National Forest. Mapleton residents continue to call Spanish Fork Peak “Maple Mountain”, despite the U.S. Board on Geographic Names having opted for the name that refers to the river and canyon that form its south base. The mountain has also been informally referred to as Sierra Bonita and Monument Peak. The city is bounded to the north by Hobble Creek and extends southward to the Ensign-Bickford plant in Spanish Fork. The Mapleton Lateral Canal crosses the eastern side of the city, and the Bureau of Reclamation began piping it in 2007.
As of the census of 2000, there were 5,809 people, 1,442 households, and 1,313 families residing in the city. The population density was 629.4 people per square mile (243.0/km²). There were 1,480 housing units at an average density of 160.4 per square mile (61.9/km²). The racial makeup of the city was 97.80% White, 0.14% African American, 0.24% Native American, 0.34% Asian, 0.22% Pacific Islander, 0.52% from other races, and 0.74% from two or more races. Hispanic or Latino of any race were 2.05% of the population.
There were 1,442 households out of which 54.1% had children under the age of 18 living with them, 83.8% were married couples living together, 5.1% had a female householder with no husband present, and 8.9% were non-families. 7.6% of all households were made up of individuals and 3.7% had someone living alone who was 65 years of age or older. The average household size was 4.02 and the average family size was 4.25.
In the city, the population was spread out with 40.1% under the age of 18, 10.0% from 18 to 24, 23.4% from 25 to 44, 18.7% from 45 to 64, and 7.8% who were 65 years of age or older. The median age was 25 years. For every 100 females, there were 100.9 males. For every 100 females age 18 and over, there were 101.0 males.
The median income for a household in the city was $60,985, and the median income for a family was $63,856. Males had a median income of $43,462 versus $22,800 for females. The per capita income for the city was $17,496. About 3.8% of families and 5.1% of the population were below the poverty line, including 6.7% of those under age 18 and 6.7% of those age 65 or over.