Kuna ( ) is a city in Ada County, Idaho. It is part of the Boise metropolitan area. The population was 24,011 at the time of the 2020 census. Kuna is one of the fastest-growing areas in Idaho, having nearly tripled in population between 2000 and 2010, and a nearly additional 60 percent gain between 2010 and 2020. History Kuna originated as a railroad stop with coach transport to Boise. It is popularly believed, as cited by the Kuna Chamber of Commerce, that the translation of the name "Kuna" means "the end of the trail", but Charles S. Walgamott cites the origin of the name as a Shoshone Indian word meaning "green leaf, good to smoke." The Western Heritage Historic Byway, designated as a national as well as a state scenic byway, travels around a number of historic sites in the area. Geography Kuna's business center is approximately southwest of downtown Boise, the state capital. According to the United States Census Bureau, the city has a total area of , of which is land and is water. South of Kuna is the Kuna Caves a lava tube. A small seasonal creek, Indian Creek, runs through the city. It is now used as an irrigation canal, filled by the New York Canal from the Boise River Diversion Dam. One of the few small floatable waterways in the region, Indian Creek is a favorite swimming spot for local residents. Demographics As of the 2020 census, the median income for a household in the city was $68,017. Families had a median income of $75,296 versus $91,364 for married-couple families and $33,512 for nonfamily households. About 7.4% of those aged 18 to 64 years and 8.0% of the total population were below the poverty line, including 7.8% of those under age 18 and 14.5% of those age 65 or over. 2010 census As of the census of 2010, there were 15,210 people, 4,782 households, and 3,838 families residing in the city. The population density was . There were 5,108 housing units at an average density of . The racial makeup of the city was 91.2% White, 0.6% African American, 0.8% Native American, 0.7% Asian, 0.1% Pacific Islander, 3.6% from other races, and 2.9% from two or more races. Hispanic or Latino people of any race were 8.6% of the population. There were 4,782 households, of which 56.1% had children under the age of 18