County · Idaho
Boise County, Idaho
Boise County, Idaho. Boise County had 8,545 residents in 2025 by the Census Bureau's estimate, up 12.3% since 2020, faster than Idaho (+10.4%). It holds 8 places (4 cities, villages and boroughs and 4 census-designated) and 3 census tracts. GEOID 16015.
Boise County is one of the 5 counties of the Boise City, ID metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
8,545
Census Bureau estimate (no margin published)
2020 Census count: 7,610 · ACS 2020-2024: 8,273
Median household income
$78,774
±$3,983 (90% margin)
Idaho: $77,800
Median home value
$476,100
±$37,536 (90% margin)
Idaho: $418,600
Median gross rent
$850
±$222 (90% margin)
Idaho: $1,238
How many people live in Boise County, and is it growing?
The 2020 Census counted 7,610 residents in Boise County. The Census Bureau estimates 8,545 for July 1, 2025, up 12.3% since 2020, faster than Idaho (+10.4%). The 2020-2024 American Community Survey puts the population at 8,273 over 1,899 square miles of land.
| Measure | Boise County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Total population | 8,273 | 1,934,262 | +895 |
| Households | 3,593±251 | 713,005 | +388 |
| Average household size | 2.29±0.16 | 2.64 | no clear change |
| Housing units | 5,689±27 | 795,014 | +135 |
Boise County's population since 2000
From 6,670 in 2000 to 8,545 in 2025: up 28.1%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Boise County?
Boise County holds 8 places: 4 cities, villages and boroughs (incorporated places) and 4 census-designated places. The largest is Robie Creek with 1,213 residents (2020-2024). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Robie CreekGEOID 1668545 | 1,193 | $106,250 |
|---|---|---|
| Horseshoe Bend | 715 | $65,500 |
| Idaho CityGEOID 1639610 | 466 | $44,722 |
| Garden ValleyGEOID 1629710 | 377 | not published |
| CrouchGEOID 1619720 | 154 | $78,226 |
| PlacervilleGEOID 1663550 | 48 | $63,125 |
| LowmanGEOID 1648250 | 44 | not published |
| BanksGEOID 1604600 | 22 | not published |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Boise County?
The median resident of Boise County is 53.4 years old; 15.4% are under 18 and 28.3% are 65 or older. The largest group is non-Hispanic white residents at 83.5%, then non-Hispanic residents of two or more races at 6.5%. 2.0% of residents were born outside the United States.
| Measure | Boise County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median age | 53.4±0.4 | 37.3 | no clear change |
| Under 18 years | 15.4%±0.2 pts | 24.1% | – |
| 65 years and over | 28.3%±0.7 pts | 17.0% | – |
| Hispanic or Latino (any race) | 5.1% | 13.6% | +0.5 pts |
| White alone, not Hispanic | 83.5%±2.2 pts | 78.6% | −7.4 pts |
| Black or African American alone, not Hispanic | 0.2%±0.2 pts | 0.7% | – |
| Asian alone, not Hispanic | 1.5%±0.6 pts | 1.3% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 1.0%±0.8 pts | 0.7% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.1% | – |
| Two or more races, not Hispanic | 6.5%±2.0 pts | 4.2% | – |
| Some other race alone, not Hispanic | 2.2%±1.3 pts | 0.6% | – |
| Born outside the United States | 2.0%±1.3 pts | 5.9% | no clear change |
| Speak a language other than English at home (age 5+) | 4.3%±1.7 pts | 11.0% | – |
| Civilian veterans (age 18+) | 13.3%±2.2 pts | 8.0% | – |
| With a disability | 15.3%±2.2 pts | 14.1% | – |
| No health insurance coverage | 9.3%±2.2 pts | 9.1% | no clear change |
| High school graduate or higher (age 25+) | 95.9%±1.2 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 31.2%±3.2 pts | 31.8% | no clear change |
| Graduate or professional degree (age 25+) | 9.3%±2.6 pts | 10.5% | – |
| Moved from another state in the past year | 1.8%±0.8 pts | 4.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Boise County earn?
Half of Boise County's 3,593 households earn less than $78,774 a year (±$3,983), against $77,800 in Idaho. In 2015-2019 it was $73,406 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.7% of residents live below the poverty line.
| Measure | Boise County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $78,774±$3,983 | $77,800 | no clear change |
| Mean household income | $88,780±$5,482 | $102,747 | – |
| Per capita income | $38,748±$2,708 | $38,952 | no clear change |
| People below the poverty line | 7.7%±2.3 pts | 10.6% | no clear change |
| Children under 18 below the poverty line | 12.9%±8.8 pts | 12.4% | – |
| Households receiving SNAP | 6.8%±2.6 pts | 7.6% | – |
| Households with a broadband subscription | 90.0%±3.5 pts | 91.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Boise County?
Owners occupy 90.3% of Boise County's occupied homes and renters 9.7%. The median owner-occupied home is valued at $476,100 by its owner (±$37,536). The median renter pays $850 a month including utilities, and 25.0% of renters pay 35% or more of their income on rent.
| Measure | Boise County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $476,100±$37,536 | $418,600 | +$190,210 |
| Median gross rent | $850±$222 | $1,238 | no clear change |
| Renters paying 35% or more of income on rent | 25.0%±11.5 pts | 36.9% | no clear change |
| Median monthly owner costs, with a mortgage | $1,754±$130 | $1,687 | – |
| Owner-occupied homes | 90.3%±2.6 pts | 72.1% | +7.5 pts |
| Housing units | 5,689±27 | 795,014 | +135 |
| Homeowner vacancy rate | 1.1%±1.0 pts | 0.7% | – |
| Rental vacancy rate | 10.3%±9.7 pts | 3.9% | – |
| Single-family detached homes | 83.7%±3.4 pts | 73.8% | – |
| Mobile homes | 13.2%±3.4 pts | 6.9% | – |
| Built 2020 or later | 3.9%±1.8 pts | 3.9% | – |
| Built 1939 or earlier | 4.5%±1.5 pts | 7.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Boise County building?
Builders took permits for 108 new housing units across Boise County in 2025 (108 single-family), 12.6 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Boise County get to work?
63.8% of Boise County's workers drive alone and 20.3% work from home. The average trip to work takes 38.0 minutes. The unemployment rate in 2020-2024 averaged 3.4%.
| Measure | Boise County | Idaho | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 53.2%±3.0 pts | 63.0% | – |
| Unemployment rate | 3.4%±1.8 pts | 3.7% | no clear change |
| Drove alone to work | 63.8%±5.3 pts | 72.7% | – |
| Carpooled | 9.2%±3.3 pts | 8.9% | – |
| Public transportation | 0.0%±1.0 pts | 0.5% | – |
| Walked | 6.7%±2.7 pts | 2.6% | – |
| Worked from home | 20.3%±4.5 pts | 13.3% | +10.8 pts |
| Mean travel time to work | 38.0 min±3.4 | 21.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Boise County's census tracts?
Boise County is divided into 3 census tracts. Among those with a reliable estimate, median household income runs from $61,319 (Tract 9502.02) to $92,222 (Tract 9502.01).
| Tract 9502.0116015950201 | 2,102±270 | $92,222 |
|---|---|---|
| Tract 9502.0216015950202 | 2,299±252 | $61,319 |
| Tract 9502.0316015950203 | 3,872±321 | $78,507 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Boise County compare with Idaho's other counties?
| Measure | Rank |
|---|---|
| Population | 32nd of 44 |
| Growth 2020-2025 | 9th of 44 |
| Residents per square mile | 32nd of 44 |
| Median household income | 7th of 44 |
| Median home value | 7th of 44 |
| Median gross rent | 33rd of 44 |
| Poverty rate | 41st of 43 |
| Bachelor's degree or higher | 9th of 44 |
| Median age | 3rd of 44 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Boise County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.