Boise County, Idaho Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 33rd-largest in Idaho

The population of Boise County, Idaho is 8,045 as of the 2023 American Community Survey, making it the 33rd-largest county in Idaho. The median household income is $77,349, the median home value is $424,100, and the median age is 53.5.

The population of Boise County has grown 22.5% since 2010 (7,005 → 8,581), a +1.46% annualized rate.

Boise County within Idaho · Source: US Census TIGER/Line via us-atlas

8,045

Population

+1.46%

Annual growth

People / sq mi

$77,349

Median Income

$424,100

Median Home Value

Boise County covers 1,899 sq mi of land at 4.2 people per square mile.

About Boise County, ID

Homeownership is the standout figure in Boise County: 88.0% of homes are owner-occupied, higher than the national rate. Boise County is a county in Idaho with a population of 8,045. It ranks #33 among counties in Idaho by population.

Median household income is $77,349, near the US median of $78,538. Poverty is among the lowest of comparable US counties, at 4.2% — below the national 12.4%. Home prices are steep, with the typical property valued at $424,100, with typical rent around $854.

About 29.9% of adults 25 and older have a bachelor’s degree, below the 35.0% national figure. Remote work is widespread — 17.8% of workers stay home, above the national 14.0%, and the average commute runs about 35 minutes each way.

The ownership rate anchors the housing story in Boise County, and tends to move with the age structure and home-value figures above.

Boise County Population History (2010-2024)

The county of Boise County had a population of 7,005 in 2010 and 8,581 in 2024, a 22.5% growth over 14 years. The peak was 8,581 in 2024. Average annual growth rate: 1.49%.

Boise County population, 2010–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

8,581

Population (2024)

7,005

Population (2010)

8,581

Peak (2024)

1.49%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	7,005	-	-	estimate
2011	6,986	-19	-0.27%	estimate
2012	6,792	-194	-2.78%	estimate
2013	6,722	-70	-1.03%	estimate
2014	6,780	+58	+0.86%	estimate
2015	6,963	+183	+2.70%	estimate
2016	7,099	+136	+1.95%	estimate
2017	7,370	+271	+3.82%	estimate
2018	7,689	+319	+4.33%	estimate
2019	7,903	+214	+2.78%	estimate
2020	7,663	-240	-3.04%	estimate
2021	8,133	+470	+6.13%	estimate
2022	8,426	+293	+3.60%	estimate
2023	8,560	+134	+1.59%	estimate
2024	8,581	+21	+0.25%	estimate

Race & Ethnicity

White	87.4%
Black or African American	0.2%
Asian	0.0%
Hispanic or Latino (any race)	3.1%
Two or More Races	0.0%

Age & Sex

53.5

Median Age

49.2%

Female

50.8%

Male

27.3%

Age 65+

Age Distribution

Under 5

3.8%

5–9

4.2%

10–14

4.4%

15–19

6.1%

20–24

2.3%

25–34

8.0%

35–44

11.3%

45–54

12.3%

55–59

9.8%

60–64

10.5%

65–74

18.6%

75–84

6.4%

85+

2.3%

Children (under 15): 12.4% · Seniors (65+): 27.3%

Income & Poverty

Median household income	$77,349+$2,713 vs state
Mean household income	$88,157
Per-capita income	$38,398
Poverty rate	4.2%-2.8% vs state
Unemployment rate	1.5%
Employment-to-population	50.5%

Top Industries by Employment

Professional & business services

19.9%

Construction

13.9%

Finance & real estate

10.8%

Public administration

8.6%

Manufacturing

7.3%

Education & health care

6.7%

Information

5.7%

Arts, entertainment & food

5.4%

The largest employment sector in Boise County is professional & business services, accounting for 19.9% of workers.

How residents commute

0.0%

Drive alone

8.1%

Carpool

66.0%

Public transit

17.8%

Work from home

35.1 min

Avg commute

Housing

$424,100+$48,100 vs state

Median home value

$854

Median rent

88.0%

Homeownership rate

5,592

Total housing units

63.0%

Occupied

37.0%

Vacant

12.0%

Renter-occupied

Social & access

88.8%

With health insurance

95.9%

With broadband internet

58.6%

Foreign-born

13.4%

Veterans (18+)

15.1%

With a disability

93.9%

Speak language other than English at home

Education

95.6%

High School+

29.9%

Bachelor's+

Largest cities in Idaho

Boise City (235,701)Meridian (124,865)Nampa (106,289)Idaho Falls (66,672)Caldwell (63,465)Pocatello (57,152)Coeur d'Alene (55,558)Twin Falls (53,219)Post Falls (41,716)Rexburg (39,589)All Idaho cities →

Other counties in Idaho

Ada County (508,052)Canyon County (242,405)Kootenai County (177,736)Bonneville County (127,056)Twin Falls County (92,121)Bannock County (88,457)Madison County (53,578)Bonner County (49,456)Bingham County (48,993)Nez Perce County (42,477)All Idaho counties →

Part of Idaho

Idaho demographic profile All Idaho data →

Metro areas in Idaho

Boise City (790,640)Coeur d'Alene (177,736)Idaho Falls (161,944)Logan (151,746)Twin Falls (116,909)Pocatello (88,457)Lewiston (64,901)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Boise County, Idaho has a population of 8,045 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 33rd-largest county in Idaho. Population density is 4 people per square mile.

The population of Boise County has grown 22.5% since 2010 (7,005 → 8,581), a +1.46% annualized rate.

The median household income in Boise County, Idaho is $77,349, with mean (average) household income of $88,157 and per-capita income of $38,398. 4.2% of residents live below the federal poverty level.

In Boise County, the largest racial and ethnic groups are White (87.4%), Hispanic or Latino (3.1%), Black or African American (0.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Boise County, Idaho is 53.5 years. Residents are 49.2% female and 50.8% male.

The median home value in Boise County is $424,100 and median monthly rent is $854. 88.0% of occupied housing units are owner-occupied. The county has 5,592 total housing units, 37.0% of which are vacant.

The largest employment sector in Boise County, Idaho is professional, scientific, and management services, employing 19.9% of workers. The unemployment rate is 1.5%.

Boise City is among the largest cities associated with Boise County, Idaho, with a population of 235,701.