Population of Idaho 2021

Population

Idaho has 1,567,582 residents (as of: Census 2010), of which 82.8% white (excluding Hispanics and Latinos), 1.7% Indians, 1.4% Asian Americans, 0.8% African American. 12.0% of the population described themselves as Hispanics or Latinos. Over three-quarters of Idaho’s population descended from ancestors in Europe. People of German origin form the largest group with 21.8%.

Religions

The religious communities with the largest membership in 2000 were the Church of Jesus Christ of Latter-day Saints with 311,425, the Catholic Church with 130,847, the Assemblies of God with 18,745 and the United Methodist Church with 17,683.

Top Counties by Population in Idaho

Rank County Name Population Population Density (per kmĀ²)
1 Ada County 392,376 143.62
2 Canyon County 188,934 123.65
3 Kootenai County 138,505 42.95
4 Bonneville County 104,245 21.53
5 Bannock County 82,850 28.74
6 Twin Falls County 77,241 15.49
7 Bingham County 45,618 8.41
8 Bonner County 40,888 9.08
9 Nez Perce County 39,276 17.86
10 Madison County 37,547 30.73
11 Latah County 37,255 13.36
12 Elmore County 27,049 3.39
13 Jefferson County 26,150 9.22
14 Cassia County 22,963 3.45
15 Payette County 22,634 21.41
16 Jerome County 22,385 14.40
17 Blaine County 21,387 3.12
18 Minidoka County 20,080 10.20
19 Gem County 16,730 11.47
20 Idaho County 16,278 0.74
21 Gooding County 15,475 8.17
22 Fremont County 13,253 2.74
23 Franklin County 12,797 7.42
24 Shoshone County 12,776 1.87
25 Owyhee County 11,537 0.58
26 Boundary County 10,983 3.34
27 Washington County 10,209 2.71
28 Teton County 10,181 8.74
29 Valley County 9,873 1.02
30 Benewah County 9,296 4.62
31 Clearwater County 8,772 1.38
32 Lemhi County 7,947 0.67
33 Power County 7,828 2.15
34 Boise County 7,039 1.43
35 Caribou County 6,974 1.52
36 Bear Lake County 5,997 2.38
37 Lincoln County 5,219 1.67
38 Custer County 4,379 0.34
39 Oneida County 4,297 1.38
40 Adams County 3,987 1.13
41 Lewis County 3,832 3.09
42 Butte County 2,902 0.50
43 Camas County 1,128 0.41
44 Clark County 993 0.22

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