United States · state

Idaho population 2026

Q: What is the population of Idaho in 2026?

The latest official figure is 2,029,733, for 1 July 2025 (US Census Bureau). If last year’s change continues, Idaho would have about 2.1 million people by 1 July 2026; that is our arithmetic, not an official figure. The Census Bureau publishes new state estimates each December.

Idaho has 2,029,733 people on the latest official figure, for 1 July 2025, 28,861 more than a year earlier (+1.44%). It is 37th of the US’s 50 states and DC by population, home to 0.6% of the US’s people.

If last year’s change continues: about 2.1 million by 1 July 2026. That is our arithmetic, not an official figure.

Idaho in numbers

Population: 2 million 1 July 2025
Change in a year: +1.44% +28,861 people
Change since 2020: +9.76% from 1.8 million
Share of the US: 0.6% 37th of 50 states and DC
Population density: 10per km² 214,051 km²
Births in the year: 24 thousand deaths: 17 thousand
International migration: +2 thousand net arrivals from abroad
Moves within the US: +20 thousand more people moved in than left

In the latest year births outnumbered deaths by 6,900, 2,148 more people arrived from abroad than left, and 19,915 more people moved in from the rest of the US than moved out.

That is about as many people as Equatorial Guinea (2 million).

Population of Idaho by year

› Show the numbers as a table

Year	Population
2010	1,570,819
2011	1,584,272
2012	1,595,910
2013	1,612,053
2014	1,632,248
2015	1,652,495
2016	1,684,036
2017	1,719,745
2018	1,752,074
2019	1,789,060
2020	1,849,328
2021	1,904,855
2022	1,942,951
2023	1,970,497
2024	2,000,872
2025	2,029,733

Year	Population	Change	%
2025	2,029,733	+28,861	+1.44%
2024	2,000,872	+30,375	+1.54%
2023	1,970,497	+27,546	+1.42%
2022	1,942,951	+38,096	+2.00%
2021	1,904,855	+55,527	+3.00%
2020	1,849,328	+60,268	+3.37%
2019	1,789,060	+36,986	+2.11%
2018	1,752,074	+32,329	+1.88%
2017	1,719,745	+35,709	+2.12%
2016	1,684,036	+31,541	+1.91%
2015	1,652,495	+20,247	+1.24%
2014	1,632,248	+20,195	+1.25%
2013	1,612,053	+16,143	+1.01%
2012	1,595,910	+11,638	+0.73%
2011	1,584,272	+13,453	+0.86%

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.

Idaho among the US’s states

Full ranking →

States of the US by population
#
1	California	39,355,309	−0.02%	11.5%	98
2	Texas	31,709,821	+1.25%	9.3%	47
3	Florida	23,462,518	+0.84%	6.9%	169
4	New York State	20,002,427	+0.01%	5.9%	164
5	Pennsylvania	13,059,432	+0.10%	3.8%	113
6	Illinois	12,719,141	+0.13%	3.7%	89
7	Ohio	11,900,510	+0.34%	3.5%	113
8	Georgia (US State)	11,302,748	+0.88%	3.3%	76
9	North Carolina	11,197,968	+1.32%	3.3%	89
10	Michigan	10,127,884	+0.28%	3.0%	69
11	New Jersey	9,548,215	+0.44%	2.8%	501
12	Virginia	8,880,107	+0.69%	2.6%	87
13	Washington State	8,001,020	+0.92%	2.3%	47
14	Arizona	7,623,818	+0.89%	2.2%	26
15	Tennessee	7,315,076	+0.88%	2.1%	69
16	Massachusetts	7,154,084	+0.22%	2.1%	354
17	Indiana	6,973,333	+0.56%	2.0%	75
18	Missouri	6,270,541	+0.43%	1.8%	35
19	Maryland	6,265,347	+0.32%	1.8%	249
20	Colorado	6,012,561	+0.40%	1.8%	22
21	Wisconsin	5,972,787	+0.26%	1.7%	43
22	Minnesota	5,830,405	+0.57%	1.7%	28
23	South Carolina	5,570,274	+1.46%	1.6%	72
24	Alabama	5,193,088	+0.58%	1.5%	40
25	Louisiana	4,618,189	+0.07%	1.4%	41
26	Kentucky	4,606,864	+0.50%	1.3%	45
27	Oregon	4,273,586	+0.19%	1.3%	17
28	Oklahoma	4,123,288	+0.62%	1.2%	23
29	Connecticut	3,688,496	+0.38%	1.1%	294
30	Utah	3,538,904	+1.02%	1.0%	17
31	Nevada	3,282,188	+0.88%	1.0%	12
32	Iowa	3,238,387	+0.25%	0.9%	22
33	Arkansas	3,114,791	+0.60%	0.9%	23
34	Kansas	2,977,220	+0.40%	0.9%	14
35	Mississippi	2,954,160	+0.14%	0.9%	24
36	New Mexico	2,125,498	−0.06%	0.6%	7
37	Idaho	2,029,733	+1.44%	0.6%	10
38	Nebraska	2,018,006	+0.62%	0.6%	10
39	West Virginia	1,766,147	−0.07%	0.5%	28
40	Hawaii	1,432,820	−0.15%	0.4%	86
41	New Hampshire	1,415,342	+0.48%	0.4%	61
42	Maine	1,414,874	+0.46%	0.4%	18
43	Montana	1,144,694	+0.63%	0.3%	3
44	Rhode Island	1,114,521	+0.37%	0.3%	416
45	Delaware	1,059,952	+0.94%	0.3%	210
46	South Dakota	935,094	+0.86%	0.3%	5
47	North Dakota	799,358	+0.75%	0.2%	5
48	Alaska	737,270	+0.10%	0.2%	1
49	District of Columbia	693,645	+0.34%	0.2%	4,381
50	Vermont	644,663	−0.29%	0.2%	27
51	Wyoming	588,753	+0.35%	0.2%	2

Largest cities in Idaho

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

Boise235,684
Meridian90,739
Nampa89,839
Idaho Falls59,184
Pocatello54,441
Caldwell51,686

Questions

What is the population of Idaho in 2026?

The latest official figure is 2,029,733, for 1 July 2025 (US Census Bureau). If last year’s change continues, Idaho would have about 2.1 million people by 1 July 2026; that is our arithmetic, not an official figure. The Census Bureau publishes new state estimates each December.

Is Idaho’s population growing or shrinking?

It grew by 28,861 people (+1.44%) in the latest year, and has changed +9.76% since 2020. In the latest year births outnumbered deaths by 6,900, 2,148 more people arrived from abroad than left, and 19,915 more people moved in from the rest of the US than moved out.

How does Idaho rank in the US?

Idaho is 37th of the US’s 50 states and DC, with 0.6% of the people. California is the largest, with 39.4 million.

What is the population density of Idaho?

About 10 people per km², on 214,051 km². Land area, US Census Bureau Gazetteer.

What is the largest city in Idaho?

Boise, with about 236 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: Idaho population, US Census Bureau, 1 July 2025. GlobeMetrics, https://globemetrics.org/world-population/united-states/idaho/

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