How is the US population aging?

According to Aterio's latest population forecast, the senior population grows 5.3% between 2025 and 2030, about twice the 2.6% of the young group and the 2.6% of the adult group, lifting seniors from 16.0% to 16.4% of the US total. The underlying data is available in the US population forecast by gender and age dataset.

What is the gender distribution of the US population?

Women are 50.6% of the US population, 170,611,322 women against 166,388,558 men in 2025, a share Aterio projects at 50.6% in 2030.

Which US states are aging the fastest?

By projected senior population growth from 2025 to 2030, the fastest aging US states are Idaho (12.4%), Utah (11.2%), Georgia (10.1%), South Dakota (9.4%), Montana (9.4%).

Which US states have the oldest populations?

By share of senior residents in 2025, the oldest US states are Maine (20.6%), Florida (20.3%), West Virginia (19.7%), Vermont (19.5%), Montana (19.4%).

Understanding U.S. population demographics for the next 10 years

Explore the evolving landscape of the United States through the latest census data, revealing a nation rich in diversity and history. With a population exceeding 331 million, America continues to grow, driven by vibrant communities and shifting demographics.

Insights driven by data and our proprietary forecasting AI models

Aterio team dives in understanding the dynamics shaping communities from coast to coast, and how these changes impact policy, economy, and everyday life in the United States.

An Aging Society: As the Baby Boomer generation ages, we witness a significant shift towards an older demographic, with centenarians increasing by 50%.
Balancing Genders: Women slightly outnumber men, making up 50.8% of the population, continuing a trend seen since the mid-20th century.

Forecast population demographics by state for 2025 and 2030

Our model provides a detailed forecast of U.S. population growth by zip code, county, city and state. With this data, organizations can make informed decisions on where to invest in real estate, retail, and other sectors.

State	2020 young population	2025 young population	2030 young population	2020 adult population	2025 adult population	2030 adult population	2020 senior population	2025 senior population	2030 senior population
Alaska	200,348	196,806	197,778	446,331	438,513	440,213	87,391	88,162	93,488
Alabama	1,224,943	1,279,953	1,299,116	2,839,559	2,961,270	3,012,399	827,204	860,587	902,959
Arkansas	784,064	786,111	791,479	1,717,342	1,711,810	1,725,090	510,000	518,380	542,922
Arizona	1,833,885	1,901,543	1,985,547	4,069,811	4,177,191	4,356,431	1,261,142	1,270,988	1,334,616
California	9,984,137	10,184,761	10,346,315	23,705,154	24,016,629	24,419,573	5,642,872	5,655,684	5,833,308
Colorado	1,405,257	1,492,104	1,570,052	3,469,983	3,631,925	3,824,542	808,380	856,556	932,762
Connecticut	837,963	855,516	854,560	2,117,116	2,142,637	2,139,141	615,465	614,049	623,030
District of Columbia	147,280	146,871	153,649	468,720	466,408	481,578	85,514	84,264	87,322
Delaware	228,284	243,944	254,169	555,945	587,375	610,761	182,024	192,608	207,537
Florida	4,695,772	5,005,509	5,285,166	12,170,439	12,882,065	13,589,717	4,347,652	4,544,894	4,863,911
Georgia	2,804,530	2,926,596	3,009,375	6,251,052	6,535,882	6,786,582	1,459,152	1,573,269	1,732,248
Hawaii	331,083	348,681	359,003	825,513	862,154	882,481	260,472	268,559	279,638
Iowa	817,056	847,280	867,367	1,794,475	1,821,633	1,850,939	537,523	555,901	583,941
Idaho	491,894	544,078	571,896	984,444	1,068,432	1,135,837	277,624	317,681	357,009
Illinois	3,185,165	3,200,575	3,164,836	7,540,277	7,557,267	7,508,314	1,990,355	1,979,648	2,006,334
Indiana	1,757,497	1,813,556	1,837,008	3,887,691	3,969,973	4,020,432	1,050,721	1,093,347	1,158,352
Kansas	786,841	810,064	816,466	1,664,617	1,673,910	1,684,604	460,766	473,042	492,186
Kentucky	1,118,286	1,138,677	1,135,121	2,595,100	2,623,839	2,626,949	729,650	765,184	815,446
Louisiana	1,213,245	1,224,753	1,231,711	2,730,594	2,742,898	2,763,250	719,455	725,325	759,089
Massachusetts	1,568,929	1,633,743	1,676,212	4,166,719	4,299,637	4,404,138	1,136,170	1,161,799	1,203,577
Maryland	1,494,817	1,559,964	1,600,037	3,611,867	3,750,689	3,841,098	930,791	961,176	1,011,410
Maine	282,960	293,931	296,425	780,163	801,832	805,673	276,159	283,512	294,248
Michigan	2,427,831	2,471,762	2,484,085	5,832,498	5,884,822	5,909,611	1,712,720	1,735,805	1,795,330
Minnesota	1,440,438	1,497,282	1,529,718	3,272,288	3,370,569	3,447,472	887,576	933,375	1,000,041
Missouri	1,538,741	1,563,010	1,569,858	3,551,602	3,591,211	3,614,980	1,033,407	1,051,175	1,096,511
Mississippi	793,465	797,560	784,256	1,713,751	1,692,275	1,682,214	474,253	484,700	509,640
Montana	254,929	273,208	285,058	609,154	629,501	648,348	198,261	216,966	237,283
North Carolina	2,591,093	2,681,578	2,762,035	6,105,345	6,299,989	6,513,283	1,688,072	1,763,426	1,901,457
North Dakota	199,293	224,092	247,006	443,937	470,030	501,459	116,161	119,679	128,575
Nebraska	528,679	555,589	574,347	1,093,577	1,132,950	1,166,556	302,102	317,113	335,191
New Hampshire	295,105	306,685	309,744	814,686	837,089	844,023	245,105	253,190	264,815
New Jersey	2,166,343	2,298,936	2,351,649	5,275,648	5,581,809	5,719,540	1,442,859	1,502,486	1,562,406
New Mexico	538,238	538,197	531,594	1,191,146	1,190,857	1,186,959	364,404	372,509	388,686
Nevada	753,945	800,017	842,843	1,798,491	1,900,374	2,004,159	477,999	501,469	538,231
New York	4,570,102	4,761,278	4,830,912	11,720,958	12,136,098	12,314,473	3,221,336	3,287,493	3,379,444
Ohio	2,903,380	2,955,877	2,962,245	6,777,895	6,863,588	6,889,357	1,990,432	2,024,955	2,094,991
Oklahoma	1,062,452	1,095,853	1,126,746	2,268,014	2,314,597	2,372,660	619,294	631,302	661,001
Oregon	965,648	991,612	1,021,778	2,475,391	2,513,103	2,594,435	734,825	766,330	820,460
Pennsylvania	2,992,493	3,079,998	3,104,100	7,465,452	7,614,577	7,656,555	2,334,590	2,366,008	2,424,891
Rhode Island	240,788	252,939	257,744	634,524	660,261	669,881	182,486	190,353	198,797
South Carolina	1,248,199	1,293,470	1,341,678	2,942,344	3,037,433	3,161,000	900,631	940,208	1,020,762
South Dakota	239,419	254,799	266,158	492,391	500,598	515,554	146,759	157,162	171,950
Tennessee	1,680,881	1,761,089	1,810,184	3,997,087	4,169,300	4,297,191	1,107,499	1,177,478	1,270,792
Texas	8,182,192	8,683,600	9,203,073	16,852,371	17,840,733	18,956,045	3,592,741	3,764,504	4,065,780
Utah	1,020,623	1,095,476	1,168,059	1,775,669	1,880,907	2,015,885	348,467	374,947	416,814
Virginia	2,103,291	2,196,923	2,251,698	5,089,167	5,223,608	5,341,435	1,314,087	1,370,840	1,477,181
Vermont	136,488	141,973	142,660	366,757	377,235	375,860	120,826	125,464	130,663
Washington	1,830,652	1,955,524	2,065,253	4,520,157	4,793,604	5,067,297	1,160,344	1,241,332	1,346,332
Wisconsin	1,428,178	1,464,966	1,476,667	3,395,584	3,471,785	3,503,813	982,690	1,006,707	1,046,350
West Virginia	409,789	407,474	402,042	1,036,477	1,008,707	987,295	359,996	348,362	349,580
Wyoming	149,572	153,172	154,159	336,377	328,438	327,779	95,516	100,955	107,089

Frequently asked questions

: According to Aterio's latest population forecast, the senior population grows 5.3% between 2025 and 2030, about twice the 2.6% of the young group and the 2.6% of the adult group, lifting seniors from 16.0% to 16.4% of the US total. The underlying data is available in the US population forecast by gender and age dataset.
: Women are 50.6% of the US population, 170,611,322 women against 166,388,558 men in 2025, a share Aterio projects at 50.6% in 2030.
: By projected senior population growth from 2025 to 2030, the fastest aging US states are Idaho (12.4%), Utah (11.2%), Georgia (10.1%), South Dakota (9.4%), Montana (9.4%).
: By share of senior residents in 2025, the oldest US states are Maine (20.6%), Florida (20.3%), West Virginia (19.7%), Vermont (19.5%), Montana (19.4%).

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