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United States · state

Montana population 2026

Montana has 1,144,694 people on the latest official figure, for 1 July 2025, 7,137 more than a year earlier (+0.63%). It is 43rd of the US’s 50 states and DC by population, home to 0.3% of the US’s people.

If last year’s change continues: about 1.2 million by 1 July 2026. That is our arithmetic, not an official figure.

Montana in numbers

Population
1.1 million 1 July 2025
Change in a year
+0.63% +7,137 people
Change since 2020
+5.29% from 1.1 million
Share of the US
0.3% 43rd of 50 states and DC
Population density
3per km² 376,973 km²
Births in the year
11 thousand deaths: 11 thousand
International migration
+899 net arrivals from abroad
Moves within the US
+6 thousand more people moved in than left

In the latest year deaths outnumbered births by 90, 899 more people arrived from abroad than left, and 6,348 more people moved in from the rest of the US than moved out.

That is about as many people as Djibouti (1.2 million).

Population of Montana by year

Population of Montana
1.1M
› Show the numbers as a table
YearPopulation
2010990,730
2011997,518
20121,004,168
20131,014,158
20141,022,657
20151,031,495
20161,042,137
20171,053,862
20181,061,818
20191,070,123
20201,087,156
20211,106,416
20221,121,533
20231,130,612
20241,137,557
20251,144,694
YearPopulationChange
2025 1,144,694 +7,137
2024 1,137,557 +6,945
2023 1,130,612 +9,079
2022 1,121,533 +15,117
2021 1,106,416 +19,260
2020 1,087,156 +17,033
2019 1,070,123 +8,305
2018 1,061,818 +7,956
2017 1,053,862 +11,725
2016 1,042,137 +10,642
2015 1,031,495 +8,838
2014 1,022,657 +8,499
2013 1,014,158 +9,990
2012 1,004,168 +6,650
2011 997,518 +6,788

2010–2019 are Vintage 2020 estimates and 2020–2025 are Vintage 2025, so the step between 2019 and 2020 is partly a change of base.

Montana among the US’s states

Full ranking →
States of the US by population
#
1 California39,355,309−0.02%
2 Texas31,709,821+1.25%
3 Florida23,462,518+0.84%
4 New York State20,002,427+0.01%
5 Pennsylvania13,059,432+0.10%
6 Illinois12,719,141+0.13%
7 Ohio11,900,510+0.34%
8 Georgia (US State)11,302,748+0.88%
9 North Carolina11,197,968+1.32%
10 Michigan10,127,884+0.28%
11 New Jersey9,548,215+0.44%
12 Virginia8,880,107+0.69%
13 Washington State8,001,020+0.92%
14 Arizona7,623,818+0.89%
15 Tennessee7,315,076+0.88%
16 Massachusetts7,154,084+0.22%
17 Indiana6,973,333+0.56%
18 Missouri6,270,541+0.43%
19 Maryland6,265,347+0.32%
20 Colorado6,012,561+0.40%
21 Wisconsin5,972,787+0.26%
22 Minnesota5,830,405+0.57%
23 South Carolina5,570,274+1.46%
24 Alabama5,193,088+0.58%
25 Louisiana4,618,189+0.07%
26 Kentucky4,606,864+0.50%
27 Oregon4,273,586+0.19%
28 Oklahoma4,123,288+0.62%
29 Connecticut3,688,496+0.38%
30 Utah3,538,904+1.02%
31 Nevada3,282,188+0.88%
32 Iowa3,238,387+0.25%
33 Arkansas3,114,791+0.60%
34 Kansas2,977,220+0.40%
35 Mississippi2,954,160+0.14%
36 New Mexico2,125,498−0.06%
37 Idaho2,029,733+1.44%
38 Nebraska2,018,006+0.62%
39 West Virginia1,766,147−0.07%
40 Hawaii1,432,820−0.15%
41 New Hampshire1,415,342+0.48%
42 Maine1,414,874+0.46%
43 Montana1,144,694+0.63%
44 Rhode Island1,114,521+0.37%
45 Delaware1,059,952+0.94%
46 South Dakota935,094+0.86%
47 North Dakota799,358+0.75%
48 Alaska737,270+0.10%
49 District of Columbia693,645+0.34%
50 Vermont644,663−0.29%
51 Wyoming588,753+0.35%

Largest cities in Montana

City proper, not the wider metro area; latest figure in GeoNames (CC BY 4.0), so years differ.

  1. Billings117,116
  2. Missoula71,022
  3. Great Falls59,638
  4. Bozeman43,405
  5. Butte34,190
  6. Helena32,091

Questions

What is the population of Montana in 2026?

The latest official figure is 1,144,694, for 1 July 2025 (US Census Bureau). If last year’s change continues, Montana would have about 1.2 million people by 1 July 2026; that is our arithmetic, not an official figure. The Census Bureau publishes new state estimates each December.

Is Montana’s population growing or shrinking?

It grew by 7,137 people (+0.63%) in the latest year, and has changed +5.29% since 2020. In the latest year deaths outnumbered births by 90, 899 more people arrived from abroad than left, and 6,348 more people moved in from the rest of the US than moved out.

How does Montana rank in the US?

Montana is 43rd of the US’s 50 states and DC, with 0.3% of the people. California is the largest, with 39.4 million.

What is the population density of Montana?

About 3 people per km², on 376,973 km². Land area, US Census Bureau Gazetteer.

What is the largest city in Montana?

Billings, with about 117 thousand people in the city proper. Metro areas are larger, and years differ (GeoNames).

Source and method

US Census Bureau, Vintage 2025 population estimates. US government work, public domain. Land area, US Census Bureau Gazetteer. The Census Bureau publishes new state estimates each December. Ranks, shares and changes are our arithmetic on the published figures. National figures can differ from the UN’s projection for the US, which uses a different method. The 2026 figure above carries last year’s change forward; it does not come from the source.

Cite this page: Montana population, US Census Bureau, 1 July 2025. GlobeMetrics, https://globemetrics.org/world-population/united-states/montana/

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