Counties in Idaho by natural change, July to June, 2025

Ada County had the highest natural change, July to June of 44 counties in 2025, at 1,629. Nez Perce County had the lowest, at -153. The median was 32 and the figure for Idaho was 6,900. Source: the U.S. Census Bureau.

Highest1,629Ada County

Lowest-153Nez Perce County

Median3244 counties

Idaho6,900History

Map of counties, 2025

Under -50
-50 to -20
-20 to 0
0 to 40
40 to 210
210 and over

persons, 2025. Red areas are below zero and blue areas above it. Source: U.S. Census Bureau, Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2025

persons. Source: U.S. Census Bureau, Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2025 persons	Change on 2024
1	Ada County Estimated	1,629	+18.9%
2	Canyon County Estimated	1,611	+8.8%
3	Madison County Estimated	819	+0.9%
4	Bonneville County Estimated	764	+5.5%
5	Kootenai County Estimated	469	+39.6%
6	Bannock County Estimated	270	+11.1%
7	Bingham County Estimated	255	+7.6%
8	Twin Falls County Estimated	252	+14%
9	Jefferson County Estimated	212	+1.4%
10	Latah County Estimated	210	+5%
11	Cassia County Estimated	182	+9%
12	Elmore County Estimated	181	+11%
13	Jerome County Estimated	156	+6.8%
14	Minidoka County Estimated	86	+16.2%
15	Teton County Estimated	85	+9%
16	Franklin County Estimated	83	-9.8%
17	Fremont County Estimated	64	-3%
18	Gooding County Estimated	46	0%
19	Payette County Estimated	42	+10.5%
20	Blaine County Estimated	38	+2.7%
21	Oneida County Estimated	33	-2.9%
22	Owyhee County Estimated	32	+14.3%
22	Power County Estimated	32	0%
24	Lincoln County Estimated	19	+11.8%
25	Camas County Estimated	14	+16.7%
26	Valley County Estimated	12	+33.3%
27	Caribou County Estimated	5	+350%
28	Clark County Estimated	0	n/a
29	Boundary County Estimated	-2	+33.3%
30	Adams County Estimated	-3	+25%
31	Butte County Estimated	-12	+7.7%
32	Custer County Estimated	-18	0%
33	Bear Lake County Estimated	-19	+9.5%
34	Boise County Estimated	-24	+7.7%
35	Lewis County Estimated	-29	+3.3%
36	Benewah County Estimated	-35	+10.3%
37	Gem County Estimated	-43	+18.9%
38	Lemhi County Estimated	-50	-2%
38	Shoshone County Estimated	-50	+12.3%
40	Idaho County Estimated	-57	+14.9%
41	Bonner County Estimated	-65	+18.8%
42	Washington County Estimated	-67	+2.9%
43	Clearwater County Estimated	-74	+6.3%
44	Nez Perce County Estimated	-153	+13.1%

Other periods

About this ranking

Estimated births minus deaths of residents from July 1 of the previous year through June 30 of the reported year. A negative value means more deaths than births.

Equals births_july_june minus deaths_july_june for the same place and year. Not a calendar-year figure.

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: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021 (Counties in Idaho by natural change, July to June, 2025) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in Idaho by natural change, July to June, 2025. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/natural-change-july-june/idaho-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Counties in Idaho by natural change, July to June, 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/natural-change-july-june/idaho-counties.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in Idaho by natural change, July to June, 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/natural-change-july-june/idaho-counties (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_idaho_by_2025,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in Idaho by natural change, July to June, 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/natural-change-july-june/idaho-counties. Publisher attribution: U.S. Census Bureau. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in Idaho by natural change, July to June, 2025
PY  - 2026
DA  - 2026/03/26
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/natural-change-july-june/idaho-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/natural-change-july-june/idaho-counties.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest natural change, July to June?

Ada County, with 1,629 in 2025, according to the U.S. Census Bureau.

Which county has the lowest natural change, July to June?

Nez Perce County, with -153 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: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.