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  • FIPS 16015

Boise County, Idaho

Boise County had 8,581 residents in the Census Vintage 2024 estimate, on 1,899.4 square miles of land. It ranks 32nd of 44 in Idaho by population and 14th by land area.

Population
8,581
#32 of 44 in Idaho · #2,526 in US
Area
1,899.4 sq mi
#14 of 44 in Idaho · #303 in US
Density
4.5 / sq mi
#32 of 44 in Idaho · #2,789 in US
Median household income
$74,433
#9 of 44 in Idaho · #705 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Boise County within Idaho. Pin: Boise.

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Tools and pages that start from Boise County

Boise County population, land area and income

Boise County had 8,581 residents in the Census Vintage 2024 estimate, on 1,899.4 square miles of land. It ranks 32nd of 44 in Idaho by population and 14th by land area. That works out to 4.5 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Idaho has 15,019 residents; Boise County is somewhat smaller.

Its SAIPE 2023 median household income of $74,433 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

8,581

3144th1st

2526th of 3,144 (US)

Land area

1,899 sq mi

3144th1st

303rd of 3,144 (US)

Density

4.5 / sq mi

3144th1st

2789th of 3,144 (US)

Median household income

$74,433

3143rd1st

705th of 3,143 (US)

Rank within Idaho (44)

Population

8,581

44th1st

32nd of 44 (ID)

Land area

1,899 sq mi

44th1st

14th of 44 (ID)

Density

4.5 / sq mi

44th1st

32nd of 44 (ID)

Median household income

$74,433

44th1st

9th of 44 (ID)

How Boise County's population changed since 2020

Boise County gained 918 residents between the July 2020 and July 2024 estimates, a rise of 12.0%. That ranks 8th of 44 in Idaho for growth. The median Idaho county changed by +7.2%, and the state as a whole by +8.2%.

Since the April 2020 estimates base, Boise County recorded 271 births and 328 deaths, a natural change of -57. Net international migration added +172 and net domestic migration, people moving to or from other US counties, came to +872. The largest single component was domestic migration, which added 872 people.

7,66320208,13320218,42620228,56020238,5812024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
271
Deaths
328
Net international migration
+172
Net domestic migration
+872
Change, July 2023 to July 2024
+21

Where Boise County is

The Census internal point of Boise County is at 43.987300, -115.715100. It sits in UTM zone 11N. The map shades Idaho's 44 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Boise County outlined. Dots are towns of 1,000+ people with residents in it.

Madison County: +5.0%Idaho County: +8.0%Benewah County: +9.9%Gooding County: +3.4%Lincoln County: +8.2%Minidoka County: +4.7%Custer County: +7.7%Boundary County: +15.6%Lemhi County: +5.5%Twin Falls County: +6.8%Franklin County: +9.5%Oneida County: +9.0%Gem County: +13.4%Shoshone County: +6.6%Fremont County: +7.3%Clearwater County: +4.6%Kootenai County: +9.0%Cassia County: +4.9%Blaine County: +3.8%Clark County: +0.1%Jerome County: +7.4%Bonner County: +13.8%Elmore County: +3.7%Caribou County: +3.2%Bonneville County: +7.1%Jefferson County: +12.1%Power County: +6.3%Lewis County: +5.8%Nez Perce County: +1.7%Ada County: +7.5%Adams County: +12.9%Valley County: +7.9%Bingham County: +5.8%Bannock County: +4.3%Owyhee County: +6.2%Washington County: +9.3%Latah County: +6.4%Teton County: +10.2%Camas County: +15.0%Boise County: +12.0%Bear Lake County: +6.5%Butte County: +5.9%Canyon County: +14.5%Payette County: +8.1%
Change 2020 to 2024
  1. < +4.7%
  2. < +6.4%
  3. < +7.7%
  4. < +9.9%
  5. ≥ +9.9%
no data

Orange pin: Boise County internal point. Dark pin: Boise.

Internal point

Decimal
43.987300, -115.715100
DMS
43°59'14.28"N 115°42'54.36"W
UTM
11N 603038.0E 4871264.7N
Geohash
9rvdnzdud
Plus code
85M6X7PM+WX

Towns in Boise County

No incorporated place of 1,000 or more people has residents in Boise County. Its 8,581 residents live in smaller towns, census-designated places, or unincorporated land, which the subcounty estimates do not list at this size.

Counties bordering Boise County

The Census 2024 county adjacency file lists 5 neighbors for Boise County. The most populous is Ada County, ID, with 535,799 residents. Distances run between Census internal points in a straight line.

Distance to Boise and the nearest big city

Boise is 35.7 miles SW of Boise County's internal point in a straight line. The nearest place of 100,000 or more is Boise City, ID (population 237,963), 37.1 miles away. The nearest place of 10,000 or more is Garden City, ID (population 12,936), 36.4 miles away.

Boise County FIPS code

The FIPS code of Boise County is 16015: state code 16 for Idaho plus county code 015. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $74,433.

Questions people ask

What is the population of Boise County, Idaho?

The Census Vintage 2024 estimate for July 1, 2024 is 8,581. That is up 918 people (12.0%) from the July 2020 estimate of 7,663.

What is the FIPS code of Boise County?

16015. The first two digits (16) are Idaho; the last three (015) identify the county.

What is the largest town in Boise County?

No incorporated place of 1,000 or more people has residents in Boise County. Its people live in smaller towns, census-designated places or unincorporated land.

Which counties border Boise County?

5 county-equivalents border it in the Census 2024 adjacency file: Ada County, ID; Elmore County, ID; Gem County, ID; Valley County, ID; Custer County, ID.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.