• county
  • FIPS 16027
  • Largest town: Nampa

Canyon County, Idaho

Canyon County had 266,892 residents in the Census Vintage 2024 estimate, on 587.1 square miles of land. It ranks 2nd of 44 in Idaho by population and 39th by land area.

Population
266,892
#2 of 44 in Idaho · #274 in US
Area
587.1 sq mi
#39 of 44 in Idaho · #1,672 in US
Density
455 / sq mi
#2 of 44 in Idaho · #308 in US
Median household income
$72,059
#13 of 44 in Idaho · #855 in US

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

Canyon County within Idaho. Pin: Boise.

Measure from here

Tools and pages that start from Canyon County

Canyon County population, land area and income

Canyon County had 266,892 residents in the Census Vintage 2024 estimate, on 587.1 square miles of land. It ranks 2nd of 44 in Idaho by population and 39th by land area. That works out to 454.6 people per square mile, 4.7 times the US average of 96.3, and in the top tenth nationally.

The median county-equivalent in Idaho has 15,019 residents, so Canyon County is 17.8 times that size.

Its SAIPE 2023 median household income of $72,059 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

266,892

3144th1st

274th of 3,144 (US)

Land area

587 sq mi

3144th1st

1672nd of 3,144 (US)

Density

454.6 / sq mi

3144th1st

308th of 3,144 (US)

Median household income

$72,059

3143rd1st

855th of 3,143 (US)

Rank within Idaho (44)

Population

266,892

44th1st

2nd of 44 (ID)

Land area

587 sq mi

44th1st

39th of 44 (ID)

Density

454.6 / sq mi

44th1st

2nd of 44 (ID)

Median household income

$72,059

44th1st

13th of 44 (ID)

How Canyon County's population changed since 2020

Canyon County gained 33,861 residents between the July 2020 and July 2024 estimates, a rise of 14.5%. That ranks 3rd 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, Canyon County recorded 14,098 births and 8,746 deaths, a natural change of +5,352. Net international migration added +3,399 and net domestic migration, people moving to or from other US counties, came to +27,251. The largest single component was domestic migration, which added 27,251 people.

233.0k2020243.8k2021251.5k2022258.7k2023266.9k2024
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
14,098
Deaths
8,746
Net international migration
+3,399
Net domestic migration
+27,251
Change, July 2023 to July 2024
+8,150

Where Canyon County is

The Census internal point of Canyon County is at 43.625800, -116.709100. 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 Canyon 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: Canyon County internal point. Dark pin: Boise.

Internal point

Decimal
43.625800, -116.709100
DMS
43°37'32.88"N 116°42'32.76"W
UTM
11N 523468.7E 4830353.7N
Geohash
9rv00jz48
Plus code
85M5J7GR+89

Towns in Canyon County

6 incorporated places of 1,000+ people have residents in Canyon County, 206,144 people together, or 77% of the county. Each figure counts only the part of the town inside Canyon County; towns marked "part" extend into another county. The largest is Nampa with 117,350.

  1. 01Nampa117,350
  2. 02Caldwell73,088
  3. 03Middleton11,730
  4. 04Parma2,198
  5. 05Wilder1,725
  6. 06Star (part)53
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Canyon County

The Census 2024 county adjacency file lists 5 neighbors for Canyon County, including 1 across a state line. 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 24.7 miles E of Canyon County's internal point in a straight line. The nearest place of 100,000 or more is Nampa, ID (population 117,350), 7.8 miles away. The nearest place of 10,000 or more is Caldwell, ID (population 73,088), 2.9 miles away.

Canyon County FIPS code

The FIPS code of Canyon County is 16027: state code 16 for Idaho plus county code 027. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $72,059.

Questions people ask

What is the population of Canyon County, Idaho?

The Census Vintage 2024 estimate for July 1, 2024 is 266,892. That is up 33,861 people (14.5%) from the July 2020 estimate of 233,031.

What is the FIPS code of Canyon County?

16027. The first two digits (16) are Idaho; the last three (027) identify the county.

What is the largest town in Canyon County?

Nampa, with 117,350 residents inside Canyon County in 2024.

Which counties border Canyon County?

5 county-equivalents border it in the Census 2024 adjacency file: Ada County, ID; Malheur County, OR; Payette County, ID; Gem County, ID; Owyhee 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.