Counties in Montana by natural change, July to June

Gallatin County had the highest natural change, July to June of 56 counties in 2017, at 573. Ravalli County had the lowest, at -134. The median was 1 and the figure for Montana was 1,858. Source: the U.S. Census Bureau.

Highest573Gallatin County

Lowest-134Ravalli County

Median156 counties

Montana1,858History

Map of counties, 2017

Under -29
-29 to -10
-10 to 0
0 to 6
6 to 59
59 and over

persons, 2017. 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, 2017

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	2017 persons	Change on 2016
1	Gallatin County Estimated	573	-25.9%
2	Yellowstone County Estimated	431	-8.5%
3	Flathead County Estimated	246	-4.3%
4	Missoula County Estimated	211	-45.5%
5	Hill County Estimated	159	+20.5%
6	Cascade County Estimated	156	-29.1%
7	Lewis and Clark County Estimated	146	-32.7%
8	Big Horn County Estimated	138	+22.1%
9	Roosevelt County Estimated	112	-4.3%
10	Glacier County Estimated	76	-11.6%
11	Richland County Estimated	59	-24.4%
12	Lake County Estimated	49	+133.3%
13	Rosebud County Estimated	36	-55%
14	Blaine County Estimated	33	-35.3%
15	Teton County Estimated	19	+72.7%
16	Liberty County Estimated	14	n/a
17	Pondera County Estimated	12	+340%
18	Phillips County Estimated	8	-55.6%
19	Custer County Estimated	7	+600%
19	Fallon County Estimated	7	-58.8%
21	Garfield County Estimated	6	+200%
22	Jefferson County Estimated	4	n/a
22	Stillwater County Estimated	4	+113.3%
22	Toole County Estimated	4	-33.3%
25	Dawson County Estimated	2	-91.7%
26	Carter County Estimated	1	-50%
26	Powder River County Estimated	1	+133.3%
26	Treasure County Estimated	1	n/a
26	Wheatland County Estimated	1	+120%
30	Golden Valley County Estimated	0	+100%
30	Wibaux County Estimated	0	+100%
32	Sweet Grass County Estimated	-1	+90.9%
33	Judith Basin County Estimated	-3	-200%
33	Petroleum County Estimated	-3	0%
35	McCone County Estimated	-6	n/a
35	Prairie County Estimated	-6	+45.5%
37	Meagher County Estimated	-7	-187.5%
37	Valley County Estimated	-7	-146.7%
39	Daniels County Estimated	-9	-50%
40	Carbon County Estimated	-10	+83.1%
41	Granite County Estimated	-11	+31.3%
42	Park County Estimated	-16	-900%
43	Broadwater County Estimated	-18	-125%
43	Sheridan County Estimated	-18	-100%
45	Chouteau County Estimated	-23	-2,400%
45	Musselshell County Estimated	-23	-53.3%
47	Mineral County Estimated	-27	-125%
48	Sanders County Estimated	-29	+19.4%
49	Beaverhead County Estimated	-30	n/a
50	Madison County Estimated	-31	0%
51	Powell County Estimated	-35	-25%
52	Silver Bow County Estimated	-40	-135.3%
53	Deer Lodge County Estimated	-46	+13.2%
54	Fergus County Estimated	-59	-37.2%
55	Lincoln County Estimated	-66	+16.5%
56	Ravalli County Estimated	-134	-185.1%

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 Montana by natural change, July to June, 2017) [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, 2017. 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=2017. 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, 2017. 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=2017.

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, 2017 [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=2017 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_montana_by_2017,
  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, 2017}},
  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=2017. 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, 2017
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=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/natural-change-july-june/montana-counties?period=2017.
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?

Gallatin County, with 573 in 2017, according to the U.S. Census Bureau.

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

Ravalli County, with -134 in 2017.

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.