Ranking of Idaho Counties By Population in 2011

Updated on July 26, 2024.

Based on the US Census Vintage data estimates, in 2011, the Population for Idaho was 1.58M. Among all Idaho counties, Ada County had the highest population (401.35K), followed by Canyon County (191.39K), and Kootenai County (140.99K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Idaho counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Idaho Counties By Population in 2011
Ada
401.35K
Canyon
191.39K
Kootenai
140.99K
Bonneville
105.83K
Bannock
83.66K
Twin Falls
78.11K
Bingham
45.90K
Bonner
40.80K
Nez Perce
39.44K
Madison
37.94K
Ranking of Idaho Counties By Population in 2011
Rank
County
Population
1 Ada County 401,352
2 Canyon County 191,392
3 Kootenai County 140,986
4 Bonneville County 105,833
5 Bannock County 83,657
6 Twin Falls County 78,108
7 Bingham County 45,903
8 Bonner County 40,795
9 Nez Perce County 39,444
10 Madison County 37,937
11 Latah County 37,872
12 Jefferson County 26,315
13 Elmore County 26,237
14 Cassia County 23,111
15 Payette County 22,561
16 Jerome County 22,516
17 Blaine County 21,085
18 Minidoka County 20,208
19 Gem County 16,696
20 Idaho County 16,465
21 Gooding County 15,352
22 Fremont County 13,116
23 Franklin County 12,813
24 Shoshone County 12,664
25 Owyhee County 11,378
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