Demographics · ID
Boise City, ID demographics: 237,242 residents, with a median age of 38.6 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
237,242 people live in Boise City, at a median age of 38.6 years (American Community Survey 2020–2024, a 5-year average)
Median age 38.6 years — about even with the U.S. median of 38.9.
ACS 2020–2024 5-year · ACS 5-Year Estimates 2020-2024 (released 2026-01-29)
In Boise City, the largest race group is White (81.8%); 9.6% of residents are Hispanic or Latino (of any race); 7.9% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Boise City is 38.6 years (±0.5), about the same as the U.S. median of 38.9 years. The population is 49.9% male and 50.1% female. The largest age band is 25 to 34 at 15.4%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 10,090 | 4.3% | ±633 |
| 5 to 17 | 33,776 | 14.2% | ±1,272 |
| 18 to 24 | 25,580 | 10.8% | ±1,182 |
| 25 to 34 | 36,419 | 15.4% | ±1,332 |
| 35 to 44 | 33,830 | 14.3% | ±1,415 |
| 45 to 54 | 29,444 | 12.4% | ±1,070 |
| 55 to 64 | 29,598 | 12.5% | ±1,246 |
| 65 to 74 | 22,745 | 9.6% | ±1,089 |
| 75 and over | 15,760 | 6.6% | ±802 |
Median age by sex: 37.6 (male) · 39.7 (female).
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B01001 sex by age, B01002 median age) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B02001 / B03003
The largest race group in Boise City is White at 81.8% of the population. Separately, 9.6% of residents are Hispanic or Latino of any race. Race and Hispanic origin are two different questions on the census form, so their shares are reported separately and are not additive.
| Race (alone, or two or more) | People | Share | ± margin |
|---|---|---|---|
| White alone | 193,990 | 81.8% | ±2,068 |
| Black or African American alone | 3,935 | 1.7% | ±545 |
| American Indian & Alaska Native alone | 1,751 | 0.7% | ±512 |
| Asian alone | 8,685 | 3.7% | ±717 |
| Native Hawaiian & Pacific Islander alone | 624 | 0.3% | ±200 |
| Some other race alone | 7,376 | 3.1% | ±1,334 |
| Two or more races | 20,881 | 8.8% | ±1,649 |
| Hispanic or Latino (of any race) | 22,671 | 9.6% | ±1,433 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B02001 race, B03003 Hispanic or Latino origin) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B11001 / B25010
Boise City has 101,178 households. 57.3% are family households and 31.2% are people living alone. The average household holds 2.28 people.
Total households
101,178
ACS 2020–2024 5-yr · B11001
Avg household size
2.28
ACS 2020–2024 5-yr · B25010 · ±0.02
Family households
57.3%
Share of all households · B11001
Living alone
31.2%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 101,178 | ±1,067 |
| Family households | 57,993 | ±1,264 |
| Nonfamily households | 43,185 | ±1,371 |
| Householder living alone | 31,606 | ±1,250 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B11001 household type, B25010 average household size) · place-grain · methodology →
ACS 2020–2024 · B05002 / C16001
7.9% of Boise City residents were born outside the United States. 88.9% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (5.1%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 7.9% | 18,720 people · B05002 |
| Speak only English at home (age 5+) | 88.9% | C16001 |
| Top non-English language at home | 5.1% | Spanish · 11,487 speakers · C16001 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B05002 place of birth, C16001 language spoken at home) · place-grain · methodology →
ACS 2020–2024 · B15003
47.5% of adults age 25 and over in Boise City hold a bachelor's degree or higher (the U.S. share is about 35%).
| Measure | Value | Source / grain |
|---|---|---|
| Bachelor's degree or higher (age 25+) | 47.5% | B15003 lines 22–25 over line 1 · place-grain |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B15003 educational attainment, population 25+) · place-grain · methodology →
Sources · provenance
The GEOID for Boise City is 1608830. Every figure on this page is a place-grain American Community Survey 5-Year 2020–2024 estimate (ACS 5-Year Estimates 2020-2024 (released 2026-01-29)) shown with its margin of error. Full per-dataset detail: /sources/.