Data / Rankings / Crude birth rate, July to June / Counties in Idaho

Counties in Idaho by birth rate (July to June), 2025

Madison County had the highest birth rate (July to June) of 44 counties in 2025, at 18.85 per 1,000 inhabitants. Boise County had the lowest, at 5.75 per 1,000 inhabitants. The median was 11.49 per 1,000 inhabitants and the figure for Idaho was 11.76 per 1,000 inhabitants. Source: the U.S. Census Bureau.

Highest18.85Madison County
Lowest5.75Boise County
Median11.4944 counties
Idaho11.76History

All counties, 2025

CSVChart (SVG)

Madison CountyMadison County: 18.85 per 1,000 inhabitants18.85Oneida CountyOneida County: 17.23 per 1,000 inhabitants17.23Cassia CountyCassia County: 15.93 per 1,000 inhabitants15.93Camas CountyCamas County: 14.6 per 1,000 inhabitants14.6Jerome CountyJerome County: 14.51 per 1,000 inhabitants14.51Elmore CountyElmore County: 14.26 per 1,000 inhabitants14.26Bingham CountyBingham County: 13.55 per 1,000 inhabitants13.55Lincoln CountyLincoln County: 13.53 per 1,000 inhabitants13.53Minidoka CountyMinidoka County: 13.5 per 1,000 inhabitants13.5Caribou CountyCaribou County: 13.4 per 1,000 inhabitants13.4Fremont CountyFremont County: 13.38 per 1,000 inhabitants13.38Bonneville CountyBonneville County: 13.33 per 1,000 inhabitants13.33Canyon CountyCanyon County: 13.26 per 1,000 inhabitants13.26Franklin CountyFranklin County: 12.68 per 1,000 inhabitants12.68Gooding CountyGooding County: 12.48 per 1,000 inhabitants12.48Twin Falls CountyTwin Falls County: 12.36 per 1,000 inhabitants12.36Owyhee CountyOwyhee County: 12.35 per 1,000 inhabitants12.35Bannock CountyBannock County: 12.14 per 1,000 inhabitants12.14Jefferson CountyJefferson County: 12 per 1,000 inhabitants12Payette CountyPayette County: 11.96 per 1,000 inhabitants11.96Power CountyPower County: 11.82 per 1,000 inhabitants11.82Boundary CountyBoundary County: 11.63 per 1,000 inhabitants11.63Kootenai CountyKootenai County: 11.34 per 1,000 inhabitants11.34Nez Perce CountyNez Perce County: 11.26 per 1,000 inhabitants11.26Shoshone CountyShoshone County: 11.08 per 1,000 inhabitants11.08Latah CountyLatah County: 11.03 per 1,000 inhabitants11.03Teton CountyTeton County: 10.77 per 1,000 inhabitants10.77Ada CountyAda County: 10.26 per 1,000 inhabitants10.26Clark CountyClark County: 10.22 per 1,000 inhabitants10.22Adams CountyAdams County: 10.18 per 1,000 inhabitants10.18Benewah CountyBenewah County: 9.91 per 1,000 inhabitants9.91Idaho CountyIdaho County: 9.62 per 1,000 inhabitants9.62Gem CountyGem County: 9.44 per 1,000 inhabitants9.44Bonner CountyBonner County: 9.09 per 1,000 inhabitants9.09Butte CountyButte County: 8.71 per 1,000 inhabitants8.71Bear Lake CountyBear Lake County: 8.64 per 1,000 inhabitants8.64Clearwater CountyClearwater County: 8.43 per 1,000 inhabitants8.43Lewis CountyLewis County: 8.36 per 1,000 inhabitants8.36Lemhi CountyLemhi County: 8.06 per 1,000 inhabitants8.06Washington CountyWashington County: 7.89 per 1,000 inhabitants7.89Blaine CountyBlaine County: 7.81 per 1,000 inhabitants7.81Valley CountyValley County: 6.86 per 1,000 inhabitants6.86Custer CountyCuster County: 5.86 per 1,000 inhabitants5.86Boise CountyBoise County: 5.75 per 1,000 inhabitants5.75
per 1,000 inhabitants. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2025
per 1,000 inhabitants		Change on 2024
1Madison County Estimated18.85+0.09 pts
2Oneida County Estimated17.23-0.4 pts
3Cassia County Estimated15.93+0.4 pts
4Camas County Estimated14.6+1.28 pts
5Jerome County Estimated14.51+0.3 pts
6Elmore County Estimated14.26+0.71 pts
7Bingham County Estimated13.55+0.31 pts
8Lincoln County Estimated13.53+0.24 pts
9Minidoka County Estimated13.5+0.4 pts
10Caribou County Estimated13.4+0.79 pts
11Fremont County Estimated13.38-0.06 pts
12Bonneville County Estimated13.33+0.04 pts
13Canyon County Estimated13.26+0.03 pts
14Franklin County Estimated12.68-0.59 pts
15Gooding County Estimated12.48-0.04 pts
16Twin Falls County Estimated12.36+0.16 pts
17Owyhee County Estimated12.35+0.44 pts
18Bannock County Estimated12.14+0.23 pts
19Jefferson County Estimated12-0.03 pts
20Payette County Estimated11.96+0.32 pts
21Power County Estimated11.82+0.15 pts
22Boundary County Estimated11.63+0.05 pts
23Kootenai County Estimated11.34+0.38 pts
24Nez Perce County Estimated11.26+0.66 pts
25Shoshone County Estimated11.08+0.53 pts
26Latah County Estimated11.03+0.22 pts
27Teton County Estimated10.77+0.31 pts
28Ada County Estimated10.26+0.33 pts
29Clark County Estimated10.22+0.1 pts
30Adams County Estimated10.18+0.28 pts
31Benewah County Estimated9.91+0.42 pts
32Idaho County Estimated9.62+0.45 pts
33Gem County Estimated9.44+0.24 pts
34Bonner County Estimated9.09+0.29 pts
35Butte County Estimated8.71+0.31 pts
36Bear Lake County Estimated8.64+0.17 pts
37Clearwater County Estimated8.43+0.58 pts
38Lewis County Estimated8.36+0.58 pts
39Lemhi County Estimated8.06-0.01 pts
40Washington County Estimated7.89+0.06 pts
41Blaine County Estimated7.81+0.14 pts
42Valley County Estimated6.86+0.11 pts
43Custer County Estimated5.86-0.07 pts
44Boise County Estimated5.75+0.23 pts

Other periods

About this ranking

Estimated live births from July 1 of the previous year through June 30 of the reported year per 1,000 residents, using the average of the population estimates at the two July 1 endpoints.

Published Census population estimates rate. The year identifies the end of the July-to-June period. These estimates can be revised and differ from calendar-year birth rates.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program: birth rate, July 1 of the previous year to June 30 of the reported year, nation, states and counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Rank Counties in Idaho by birth rate (July to June) using official data, and cite the source.
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Questions

Which county has the highest birth rate (July to June)?

Madison County, with 18.85 per 1,000 inhabitants in 2025, according to the U.S. Census Bureau.

Which county has the lowest birth rate (July to June)?

Boise County, with 5.75 per 1,000 inhabitants in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: birth rate, July 1 of the previous year to June 30 of the reported year, nation, states and counties. Retrieved 2026-10-08.

Crude birth rate, July to June: other rankings

Counties in Idaho: more rankings