Counties in Montana by natural change, July to June
Yellowstone County had the highest natural change, July to June of 56 counties in 2015, at 630. Lincoln County had the lowest, at -96. The median was 0 and the figure for Montana was 2,902. Source: the U.S. Census Bureau.
Map of counties, 2015
- Under -13
- -13 to -5
- -5 to 0
- 0 to 10
- 10 to 86
- 86 and over
All counties, 2015
Full ranking
| Rank | Counties | 2015 | Change on 2014 |
|---|---|---|---|
| 1 | Yellowstone County Estimated | 630 | +0.5% |
| 2 | Gallatin County Estimated | 591 | -17% |
| 3 | Missoula County Estimated | 379 | -9.1% |
| 4 | Cascade County Estimated | 373 | +6.6% |
| 5 | Lewis and Clark County Estimated | 185 | -5.6% |
| 6 | Flathead County Estimated | 170 | -46.7% |
| 7 | Big Horn County Estimated | 162 | -20.2% |
| 8 | Hill County Estimated | 151 | -13.7% |
| 9 | Glacier County Estimated | 123 | +11.8% |
| 10 | Richland County Estimated | 91 | +5.8% |
| 11 | Roosevelt County Estimated | 84 | -2.3% |
| 12 | Lake County Estimated | 79 | +23.4% |
| 13 | Rosebud County Estimated | 59 | -36.6% |
| 14 | Blaine County Estimated | 42 | -4.5% |
| 15 | Dawson County Estimated | 38 | +8.6% |
| 16 | Custer County Estimated | 29 | -6.5% |
| 17 | Pondera County Estimated | 24 | +400% |
| 18 | Fallon County Estimated | 23 | -25.8% |
| 19 | Phillips County Estimated | 15 | |
| 20 | Teton County Estimated | 10 | -52.4% |
| 20 | Toole County Estimated | 10 | +66.7% |
| 22 | Carter County Estimated | 9 | |
| 22 | Silver Bow County Estimated | 9 | +125% |
| 24 | McCone County Estimated | 6 | +160% |
| 24 | Valley County Estimated | 6 | +150% |
| 26 | Madison County Estimated | 3 | +113.6% |
| 26 | Wheatland County Estimated | 3 | |
| 28 | Petroleum County Estimated | 0 | |
| 28 | Prairie County Estimated | 0 | +100% |
| 28 | Treasure County Estimated | 0 | +100% |
| 31 | Fergus County Estimated | -1 | +98.4% |
| 31 | Golden Valley County Estimated | -1 | +50% |
| 31 | Musselshell County Estimated | -1 | +94.1% |
| 34 | Liberty County Estimated | -2 | +33.3% |
| 34 | Sheridan County Estimated | -2 | +92.6% |
| 36 | Garfield County Estimated | -3 | -50% |
| 36 | Judith Basin County Estimated | -3 | +72.7% |
| 36 | Powder River County Estimated | -3 | +50% |
| 39 | Broadwater County Estimated | -5 | -400% |
| 39 | Wibaux County Estimated | -5 | -600% |
| 41 | Daniels County Estimated | -8 | 0% |
| 41 | Granite County Estimated | -8 | +50% |
| 43 | Stillwater County Estimated | -9 | -1,000% |
| 43 | Sweet Grass County Estimated | -9 | +62.5% |
| 45 | Mineral County Estimated | -10 | +44.4% |
| 46 | Beaverhead County Estimated | -11 | -237.5% |
| 47 | Chouteau County Estimated | -12 | +55.6% |
| 48 | Meagher County Estimated | -14 | 0% |
| 48 | Ravalli County Estimated | -14 | +77% |
| 50 | Sanders County Estimated | -19 | +48.6% |
| 51 | Powell County Estimated | -21 | +22.2% |
| 52 | Park County Estimated | -27 | -350% |
| 53 | Jefferson County Estimated | -32 | -60% |
| 54 | Carbon County Estimated | -37 | -428.6% |
| 55 | Deer Lodge County Estimated | -49 | +2% |
| 56 | Lincoln County Estimated | -96 | -54.8% |
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
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 Montana by natural change, July to June, 2015) [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 Montana by natural change, July to June, 2015. 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/montana-counties?period=2015. 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 Montana by natural change, July to June, 2015. 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/montana-counties?period=2015.
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 Montana by natural change, July to June, 2015 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/natural-change-july-june/montana-counties?period=2015 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_montana_by_2015,
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 Montana by natural change, July to June, 2015}},
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/montana-counties?period=2015. 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 Montana by natural change, July to June, 2015
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/montana-counties?period=2015
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/natural-change-july-june/montana-counties?period=2015.
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 -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in Montana by natural change, July to June using official data, and cite the source.
rank_places {"indicator":"natural_change_july_june","level":"province","within":"Montana","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=natural_change_july_june&level=province&within=Montana&limit=10Questions
Which county has the highest natural change, July to June?
Yellowstone County, with 630 in 2015, according to the U.S. Census Bureau.
Which county has the lowest natural change, July to June?
Lincoln County, with -96 in 2015.
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.