# Boise metropolitan area

The Boise, Idaho Metropolitan Statistical Area (MSA) (commonly known as the Boise Metropolitan Area or the Treasure Valley) is an area that encompasses Ada, Boise, Canyon, Gem, and Owyhee counties in southwestern Idaho, anchored by the cities of Boise and Nampa. It is the main component of the wider Boise–Mountain Home–Ontario, ID–OR Combined Statistical Area, which adds Elmore and Payette counties in Idaho and Malheur County, Oregon. It is the state's largest officially designated metropolitan area and includes Idaho's three largest cities: Boise, Nampa, and Meridian. Nearly 40 percent of Idaho's total population lives in the area.
As of the 2021 estimate, the Boise–Nampa, Idaho Metropolitan Statistical Area (MSA) had a population of 795,268, while the larger Boise City–Mountain Home–Ontario, ID–OR Combined Statistical Area (CSA) had a population of 850,341. The metro area is currently the third largest in the U.S. section of the Pacific Northwest after Seattle and Portland, and is the 74th-largest metropolitan area in the United States.

## Counties

| Ada Boise Canyon Elmore | Gem Owyhee Payette Malheur (Oregon) |

## Demographics

As of the 2010 census, there were 616,561 people, 170,291 households, and 120,118 families residing within the MSA. The racial makeup of the MSA was 89.80% White, 0.52% African American, 0.80% Native American, 1.38% Asian, 0.14% Pacific Islander, 5.02% from other races, and 2.35% from two or more races. Hispanic or Latino of any race were 8.96% of the population.
The median income for a household in the MSA was $36,695, and the median income for a family was $42,196. Males had a median income of $31,854 versus $23,244 for females. The per capita income for the MSA was $17,041.
Population :
| County | 2021 | 2020 | 2010 | 2000 | 1990 | 1980 | 1970 | 1960 | 1950 | 1940 | 1930 | 1920 | 1910 |
| Ada | 511,931 | 494,967 | 392,365 | 300,904 | 205,775 | 173,036 | 112,230 | 93,460 | 70,649 | 50,401 | 37,925 | 35,213 | 29,088 |
| Boise | 8,094 | 7,610 | 7,028 | 6,670 | 3,509 | 2,999 | 1,763 | 1,646 | 1,776 | 2,333 | 1,847 | 1,822 | 5,250 |
| Canyon | 243,115 | 231,105 | 188,923 | 131,441 | 90,076 | 83,756 | 61,288 | 57,662 | 53,597 | 40,987 | 30,930 | 26,932 | 25,323 |
| Gem | 19,792 | 19,123 | 16,719 | 15,181 | 11,844 | 11,972 | 9,387 | 9,127 | 8,730 | 9,544 | 7,419 | 6,427 | – |
| Owyhee | 12,336 | 11,913 | 11,526 | 10,624 | 8,392 | 8,272 | 6,422 | 6,375 | 6,307 | 5,652 | 4,103 | 4,694 | 4,044 |
| Total | 795,268 | 764,718 | 616,561 | 464,840 | 319,596 | 280,035 | 191,030 | 168,270 | 141,059 | 108,917 | 82,224 | 75,088 | 63,705 |

## Communities
### Over 200,000 inhabitants

* Boise (principal city)

### 50,001 to 200,000 inhabitants

* Caldwell
* Meridian
* Nampa

### 10,001 to 50,000 inhabitants

* Eagle
* Kuna
* Middleton
* Mountain Home
* Garden City
* Star
* Ontario, Oregon

### 5,001 to 10,000 inhabitants

* Emmett
* Fruitland
* Payette

### 1,001 to 5,000 inhabitants

* Hidden Springs
* Homedale
* Marsing
* New Plymouth
* Nyssa, Oregon
* Parma
* Wilder
* Vale, Oregon

### 1,000 inhabitants or fewer

* Adrian, Oregon
* Crouch
* Greenleaf
* Horseshoe Bend
* Idaho City
* Jordan Valley, Oregon
* Melba
* Notus
* Placerville

### Unincorporated places

* Annex, Oregon
* Arock, Oregon
* Banks
* Basque, Oregon
* Beulah, Oregon
* Bowmont
* Bruneau
* Burns Junction, Oregon
* Cairo, Oregon
* Crowley, Oregon
* Danner, Oregon
* Garden Valley
* Hamilton Corner
* Harper, Oregon
* Huston
* Ironside, Oregon
* Jamieson, Oregon
* Jonesboro, Oregon
* Juntura, Oregon
* Letha
* Lowman
* McDermitt, Nevada-Oregon
* Murphy
* Ola
* Owyhee, Oregon
* Payette Junction, Oregon
* Riddle
* Riverside, Oregon
* Rome, Oregon
* Roswell
* Sunnyslope
* Sweet

## Transportation
### Airports

* Boise Airport
* Nampa Municipal Airport
* Caldwell Executive Airport
* Mountain Home Municipal Airport

### Interstates

* Interstate 84
* Interstate 184

### U.S. highways

* U.S. Route 20
* U.S. Route 26
* U.S. Route 30
* U.S. Route 95

### State highways

* State Highway 16
* State Highway 19
* State Highway 21
* State Highway 44
* State Highway 45
* State Highway 51
* State Highway 52
* State Highway 55
* State Highway 67
* State Highway 69
* State Highway 72
* State Highway 78
* State Highway 167
* Oregon Route 52
* Oregon Route 78
* Oregon Route 201
* Oregon Route 451
* Oregon Route 452
* Oregon Route 453
* Oregon Route 454

### Mass transit

* ValleyRide

## Colleges and universities
### Major universities

* Boise State University (BSU), Boise, Idaho

### Four-year colleges and universities

* Northwest Nazarene University (NNU), Nampa, Idaho
* The College of Idaho (C of I), Caldwell, Idaho
* University of Idaho (U of I), Boise; Extension Campus
* Idaho State University (ISU), Meridian, Idaho; Extension Campus

### Community colleges and trade schools

* College of Western Idaho, Nampa, Idaho (CWI) Nampa; Main Campus, Aspen Classroom Bldg., Canyon County Extension Boise; Ada County Campus
* Treasure Valley Community College, Caldwell, Idaho (TVCC) Ontario, Oregon; Main Campus Caldwell, Idaho; Caldwell Campus
* Northwest Lineman College (NLC), Kuna, Idaho
* Heavy Equipment Operator School of Idaho, Boise
* Stevens-Henager College, Boise, Idaho Nampa, Idaho
* Carrington College, Boise
* Broadview University, Meridian, Idaho
* University of Phoenix Meridian; Main Campus
* Boise Bible College, Boise

## Major valley employers

* Micron Technology Boise, Nampa
* Saint Luke's Medical Centers Boise, Meridian, Eagle, Nampa
* Saint Alphonsus Regional Medical Centers Boise, Nampa, Caldwell, Ontario
* Simplot Boise, Caldwell
* Hewlett-Packard Garden City / Boise
* Blue Cross Blue Shield Association Meridian
* Union Pacific Railroad Nampa
* T-Mobile US Meridian
* DirecTV Boise
* Teleperformance Boise