Idaho / Counties by Population

Idaho Counties by Population

The data is from the US Census. Below are 44 Idaho counties ranked 1 through 44. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

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Rank County Population
1 Ada County 456,849
2 Canyon County 216,699
3 Kootenai County 157,637
4 Bonneville County 114,595
5 Bannock County 85,269
6 Twin Falls County 85,124
7 Bingham County 45,927
8 Bonner County 43,560
9 Nez Perce County 40,385
10 Latah County 39,333
11 Madison County 39,141
12 Jefferson County 28,446
13 Elmore County 26,823
14 Cassia County 23,664
15 Jerome County 23,627
16 Payette County 23,215
17 Blaine County 22,024
18 Minidoka County 20,729
19 Gem County 17,379
20 Idaho County 16,369
21 Gooding County 15,124
22 Franklin County 13,564
23 Fremont County 13,094
24 Shoshone County 12,542
25 Boundary County 11,922
26 Owyhee County 11,628
27 Teton County 11,381
28 Valley County 10,687
29 Washington County 10,121
30 Benewah County 9,184
31 Clearwater County 8,546
32 Lemhi County 7,875
33 Power County 7,600
34 Boise County 7,290
35 Caribou County 7,034
36 Bear Lake County 6,028
37 Lincoln County 5,318
38 Oneida County 4,427
39 Custer County 4,172
40 Adams County 4,147
41 Lewis County 3,887
42 Butte County 2,602
43 Camas County 1,102
44 Clark County 873

United States Census Bureau / American FactFinder. "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2017". 2017 Population Estimates Program. Web. March 2018. http://factfinder2.census.gov.

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