Boise, Idaho

Boise
Nickname: 
The City of Trees
Motto: 
Energy Peril Success
Interactive map of Boise
Boise
Location within Idaho
Boise
Location within the United States
Coordinates: 43°36′57″N 116°12′06″W / 43.61583°N 116.20167°W / 43.61583; -116.20167
CountryUnited States
StateIdaho
CountyAda
Founded1863
Incorporated1864
Government
 • TypeStrong-mayor
 • BodyBoise City Council
 • MayorLauren McLean (D)
Area
84.73 sq mi (219.45 km2)
 • Land83.77 sq mi (216.96 km2)
 • Water0.96 sq mi (2.49 km2)
Elevation
2,703 ft (824 m)
Population
 (2020)
235,684
 • RankU.S.: 95th ID: 1st
 • Density2,733.2/sq mi (1,055.28/km2)
 • Urban
433,180 (US: 94th)
 • Urban density3,111/sq mi (1,201.3/km2)
 • Metro
845,877 (US: 74th)
DemonymBoisean
Time zoneUTC−7 (MST)
 • Summer (DST)UTC−6 (MDT)
ZIP codes
83701-83709, 83711-83717, 83719-83720, 83722, 83724-83726, 83728-83729, 83732, 83735, 83756, 83799
Area code(s)208, 986
FIPS code16-08830
GNIS feature ID2409876
Websitewww.cityofboise.org

Boise (locally /ˈbɔɪsi/ also /bɔɪzi/) is the capital and most populous city in the U.S. state of Idaho. It is the county seat of Ada County. The population of the city was 235,685 at the 2020 census. The Boise metropolitan area, located in the Treasure Valley, includes five counties of Idaho with an estimated population of 846,000, the most populous metropolitan area in Idaho and 74th-most populous in the United States.

Located on the Boise River in southwestern Idaho, it is 41 miles (66 km) east of the Oregon border and 110 miles (177 km) north of the Nevada border. Downtown Boise's elevation is 2,704 feet (824 m) above sea level. Originally established as a military outpost in 1863 during the gold rush era, Boise rapidly grew due to its location on the Oregon Trail and its proximity to mining operations in the surrounding region. By the late 19th century, it had become a commercial and transportation hub, bolstered by the arrival of the railroad and irrigation projects that supported agriculture in the Treasure Valley.

While agriculture and food processing remain important, Boise is home to major employers in the technology, manufacturing, and service sectors, including companies such as Micron Technology and Hewlett-Packard. Government, education, and healthcare also play significant roles in the local economy. The city is home to the Boise Art Museum, Idaho State Capitol, the annual Treefort Music Fest, and the Basque Block, showcasing its Basque heritage. Additionally, the Boise greenbelt and nearby public lands offer recreational opportunities that are integral to the city's identity.