Ranking of Idaho Counties By Population in 2024

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2024, the Population for Idaho was 2.00M. Among all Idaho counties, Ada County had the highest population (535.80K), followed by Canyon County (266.89K), and Kootenai County (188.32K).

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.

Related Topics: Idaho Census Vintage Data Topic List.

Data Source: US Census Bureau (Vintage), 2024 Census.

See this for other years:

Ranking of Idaho Counties By Population in 2024

Ada

Canyon

Kootenai

Bonneville

Twin Falls

Bannock

Madison

Bonner

Bingham

Nez Perce

Ranking of Idaho Counties By Population in 2024

Items per page:

0 of 0

Rank	County	Population
1	Ada County	535799
2	Canyon County	266892
3	Kootenai County	188323
4	Bonneville County	133644
5	Twin Falls County	96509
6	Bannock County	91010
7	Madison County	55549
8	Bonner County	53955
9	Bingham County	50889
10	Nez Perce County	42847
11	Latah County	42180
12	Jefferson County	34854
13	Elmore County	29729
14	Payette County	27662
15	Jerome County	26056
16	Cassia County	25976
17	Blaine County	25261
18	Minidoka County	22691
19	Gem County	21857
20	Idaho County	17912
21	Gooding County	16189
22	Franklin County	15638
23	Fremont County	14399
24	Shoshone County	14074
25	Boundary County	14040
26	Teton County	12932
27	Valley County	12777
28	Owyhee County	12748
29	Washington County	11539
30	Benewah County	10529
31	Clearwater County	9151
32	Boise County	8581
33	Lemhi County	8397
34	Power County	8381
35	Caribou County	7239
36	Bear Lake County	6779
37	Lincoln County	5556
38	Adams County	4998
39	Oneida County	4976
40	Custer County	4597
41	Lewis County	3728
42	Butte County	2735
43	Camas County	1247
44	Clark County	794