Ranking of Idaho Counties By Birth Rate per 1K in 2020

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2020, the Birth Rate per 1K for Idaho was 11.98. Among all Idaho counties, Madison County had the highest birth rate (28.09), followed by Cassia County (15.89), and Elmore County (15.29).

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 Birth Rate per 1K in 2020
Madison
Cassia
Elmore
Bonneville
Minidoka
Jefferson
Jerome
Franklin
Power
Clark
Ranking of Idaho Counties By Birth Rate per 1K in 2020
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Rank County Birth Rate
1 Madison County 28.09
2 Cassia County 15.89
3 Elmore County 15.29
4 Bonneville County 15.25
5 Minidoka County 14.53
6 Jefferson County 14.51
6 Jerome County 14.51
7 Franklin County 14.44
8 Power County 14.4
9 Clark County 14.2
10 Fremont County 13.68
11 Twin Falls County 13.16
12 Bingham County 12.96
13 Caribou County 12.89
14 Canyon County 12.87
15 Payette County 12.45
16 Oneida County 12.42
17 Bannock County 12.37
18 Boundary County 12.24
19 Gooding County 12.17
20 Owyhee County 12.11
21 Bear Lake County 11.9
22 Lincoln County 11.79
23 Shoshone County 10.94
24 Nez Perce County 10.92
25 Kootenai County 10.62
26 Teton County 10.41
27 Gem County 10.31
28 Ada County 10.06
29 Benewah County 10.04
30 Latah County 9.7
31 Lemhi County 9.31
32 Idaho County 9.09
33 Bonner County 9.03
34 Washington County 8.98
35 Lewis County 8.85
36 Valley County 8.26
37 Blaine County 8.01
38 Butte County 7.98
39 Adams County 7.35
40 Clearwater County 7.27
41 Custer County 6.34
42 Boise County 5.89
43 Camas County 5.4