Population change is the rate of change in population between decennial census years. While every census region grew considerably during the twentieth century, the South and West experienced the largest increases in population.

State or Region	2020 Census	2010 Census	2000 Census	1990 Census	1980 Census	1970 Census	1960 Census	1950 Census	1940 Census	1930 Census	1920 Census	1910 Census
United States
Resident Population	331,449,281	308,745,538	281,421,906	248,709,873	226,545,805	203,211,926	179,323,175	151,325,798	132,165,129	123,202,660	106,021,568	92,228,531
Percent Change	7.4%	9.7%	13.2%	9.8%	11.5%	13.3%	18.5%	14.5%	7.3%	16.2%	15.0%	21.0%
Northeast
Resident Population	57,609,148	55,317,240	53,594,378	50,809,229	49,135,283	49,040,703	44,677,819	39,477,986	35,976,777	34,427,091	29,662,053	25,868,573
Percent Change	4.1%	3.2%	5.5%	3.4%	0.2%	9.8%	13.2%	9.7%	4.5%	16.1%	14.7%	22.9%
Midwest
Resident Population	68,985,454	66,927,001	64,392,776	59,668,632	58,865,670	56,571,663	51,619,139	44,460,762	40,143,332	38,594,100	34,019,792	29,888,542
Percent Change	3.1%	3.9%	7.9%	1.4%	4.1%	9.6%	16.1%	10.8%	4.0%	13.4%	13.8%	13.5%
South
Resident Population	126,266,107	114,555,744	100,236,820	85,445,930	75,372,362	62,795,367	54,973,113	47,197,088	41,665,901	37,857,633	33,125,803	29,389,330
Percent Change	10.2%	14.3%	17.3%	13.4%	20.0%	14.2%	16.5%	13.3%	10.1%	14.3%	12.7%	19.8%
West
Resident Population	78,588,572	71,945,553	63,197,932	52,786,082	43,172,490	34,804,193	28,053,104	20,189,962	14,379,119	12,323,836	9,213,920	7,082,086
Percent Change	9.2%	13.8%	19.7%	22.3%	24.0%	24.1%	38.9%	40.4%	16.7%	33.8%	30.1%	64.4%
Alabama
Resident Population	5,024,279	4,779,736	4,447,100	4,040,587	3,893,888	3,444,165	3,266,740	3,061,743	2,832,961	2,646,248	2,348,174	2,138,093
Percent Change	5.1%	7.5%	10.1%	3.8%	13.1%	5.4%	6.7%	8.1%	7.1%	12.7%	9.8%	16.9%
Alaska
Resident Population	733,391	710,231	626,932	550,043	401,851	300,382	226,167	128,643	72,524	59,278	55,036	64,356
Percent Change	3.3%	13.3%	14.0%	36.9%	33.8%	32.8%	75.8%	77.4%	22.3%	7.7%	-14.5%	1.2%
Arizona
Resident Population	7,151,502	6,392,017	5,130,632	3,665,228	2,718,215	1,770,900	1,302,161	749,587	499,261	435,573	334,162	204,354
Percent Change	11.9%	24.6%	40.0%	34.8%	53.5%	36.0%	73.7%	50.1%	14.6%	30.3%	63.5%	66.2%
Arkansas
Resident Population	3,011,524	2,915,918	2,673,400	2,350,725	2,286,435	1,923,295	1,786,272	1,909,511	1,949,387	1,854,482	1,752,204	1,574,449
Percent Change	3.3%	9.1%	13.7%	2.8%	18.9%	7.7%	-6.5%	-2.0%	5.1%	5.8%	11.3%	20.0%
California
Resident Population	39,538,223	37,253,956	33,871,648	29,760,021	23,667,902	19,953,134	15,717,204	10,586,223	6,907,387	5,677,251	3,426,861	2,377,549
Percent Change	6.1%	10.0%	13.8%	25.7%	18.6%	27.0%	48.5%	53.3%	21.7%	65.7%	44.1%	60.1%
Colorado
Resident Population	5,773,714	5,029,196	4,301,261	3,294,394	2,889,964	2,207,259	1,753,947	1,325,089	1,123,296	1,035,791	939,629	799,024
Percent Change	14.8%	16.9%	30.6%	14.0%	30.9%	25.8%	32.4%	18.0%	8.4%	10.2%	17.6%	48.0%
Connecticut
Resident Population	3,605,944	3,574,097	3,405,565	3,287,116	3,107,576	3,031,709	2,535,234	2,007,280	1,709,242	1,606,903	1,380,631	1,114,756
Percent Change	0.9%	4.9%	3.6%	5.8%	2.5%	19.6%	26.3%	17.4%	6.4%	16.4%	23.9%	22.7%
Delaware
Resident Population	989,948	897,934	783,600	666,168	594,338	548,104	446,292	318,085	266,505	238,380	223,003	202,322
Percent Change	10.2%	14.6%	17.6%	12.1%	8.4%	22.8%	40.3%	19.4%	11.8%	6.9%	10.2%	9.5%
District of Columbia
Resident Population	689,545	601,723	572,059	606,900	638,333	756,510	763,956	802,178	663,091	486,869	437,571	331,069
Percent Change	14.6%	5.2%	-5.7%	-4.9%	-15.6%	-1.0%	-4.8%	21.0%	36.2%	11.3%	32.2%	18.8%
Florida
Resident Population	21,538,187	18,801,310	15,982,378	12,937,926	9,746,324	6,789,443	4,951,560	2,771,305	1,897,414	1,468,211	968,470	752,619
Percent Change	14.6%	17.6%	23.5%	32.7%	43.6%	37.1%	78.7%	46.1%	29.2%	51.6%	28.7%	42.4%
Georgia
Resident Population	10,711,908	9,687,653	8,186,453	6,478,216	5,463,105	4,589,575	3,943,116	3,444,578	3,123,723	2,908,506	2,895,832	2,609,121
Percent Change	10.6%	18.3%	26.4%	18.6%	19.0%	16.4%	14.5%	10.3%	7.4%	0.4%	11.0%	17.7%
Hawaii
Resident Population	1,455,271	1,360,301	1,211,537	1,108,229	964,691	768,561	632,772	499,794	423,330	368,336	255,912	191,909
Percent Change	7.0%	12.3%	9.3%	14.9%	25.5%	21.5%	26.6%	18.1%	14.9%	43.9%	33.4%	24.6%
Idaho
Resident Population	1,839,106	1,567,582	1,293,953	1,006,749	943,935	712,567	667,191	588,637	524,873	445,032	431,866	325,594
Percent Change	17.3%	21.1%	28.5%	6.7%	32.5%	6.8%	13.3%	12.1%	17.9%	3.0%	32.6%	101.3%
Illinois
Resident Population	12,812,508	12,830,632	12,419,293	11,430,602	11,426,518	11,113,976	10,081,158	8,712,176	7,897,241	7,630,654	6,485,280	5,638,591
Percent Change	-0.1%	3.3%	8.6%	0.0%	2.8%	10.2%	15.7%	10.3%	3.5%	17.7%	15.0%	16.9%
Indiana
Resident Population	6,785,528	6,483,802	6,080,485	5,544,159	5,490,224	5,193,669	4,662,498	3,934,224	3,427,796	3,238,503	2,930,390	2,700,876
Percent Change	4.7%	6.6%	9.7%	1.0%	5.7%	11.4%	18.5%	14.8%	5.8%	10.5%	8.5%	7.3%
Iowa
Resident Population	3,190,369	3,046,355	2,926,324	2,776,755	2,913,808	2,824,376	2,757,537	2,621,073	2,538,268	2,470,939	2,404,021	2,224,771
Percent Change	4.7%	4.1%	5.4%	-4.7%	3.2%	2.4%	5.2%	3.3%	2.7%	2.8%	8.1%	-0.3%
Kansas
Resident Population	2,937,880	2,853,118	2,688,418	2,477,574	2,363,679	2,246,578	2,178,611	1,905,299	1,801,028	1,880,999	1,769,257	1,690,949
Percent Change	3.0%	6.1%	8.5%	4.8%	5.2%	3.1%	14.3%	5.8%	-4.3%	6.3%	4.6%	15.0%
Kentucky
Resident Population	4,505,836	4,339,367	4,041,769	3,685,296	3,660,777	3,218,706	3,038,156	2,944,806	2,845,627	2,614,589	2,416,630	2,289,905
Percent Change	3.8%	7.4%	9.7%	0.7%	13.7%	5.9%	3.2%	3.5%	8.8%	8.2%	5.5%	6.6%
Louisiana
Resident Population	4,657,757	4,533,372	4,468,976	4,219,973	4,205,900	3,641,306	3,257,022	2,683,516	2,363,880	2,101,593	1,798,509	1,656,388
Percent Change	2.7%	1.4%	5.9%	0.3%	15.5%	11.8%	21.4%	13.5%	12.5%	16.9%	8.6%	19.9%
Maine
Resident Population	1,362,359	1,328,361	1,274,923	1,227,928	1,124,660	992,048	969,265	913,774	847,226	797,423	768,014	742,371
Percent Change	2.6%	4.2%	3.8%	9.2%	13.4%	2.4%	6.1%	7.9%	6.2%	3.8%	3.5%	6.9%
Maryland
Resident Population	6,177,224	5,773,552	5,296,486	4,781,468	4,216,975	3,922,399	3,100,689	2,343,001	1,821,244	1,631,526	1,449,661	1,295,346
Percent Change	7.0%	9.0%	10.8%	13.4%	7.5%	26.5%	32.3%	28.6%	11.6%	12.5%	11.9%	9.0%
Massachusetts
Resident Population	7,029,917	6,547,629	6,349,097	6,016,425	5,737,037	5,689,170	5,148,578	4,690,514	4,316,721	4,249,614	3,852,356	3,366,416
Percent Change	7.4%	3.1%	5.5%	4.9%	0.8%	10.5%	9.8%	8.7%	1.6%	10.3%	14.4%	20.0%
Michigan
Resident Population	10,077,331	9,883,640	9,938,444	9,295,297	9,262,078	8,875,083	7,823,194	6,371,766	5,256,106	4,842,325	3,668,412	2,810,173
Percent Change	2.0%	-0.6%	6.9%	0.4%	4.4%	13.4%	22.8%	21.2%	8.5%	32.0%	30.5%	16.1%
Minnesota
Resident Population	5,706,494	5,303,925	4,919,479	4,375,099	4,075,970	3,804,971	3,413,864	2,982,483	2,792,300	2,563,953	2,387,125	2,075,708
Percent Change	7.6%	7.8%	12.4%	7.3%	7.1%	11.5%	14.5%	6.8%	8.9%	7.4%	15.0%	18.5%
Mississippi
Resident Population	2,961,279	2,967,297	2,844,658	2,573,216	2,520,638	2,216,912	2,178,141	2,178,914	2,183,796	2,009,821	1,790,618	1,797,114
Percent Change	-0.2%	4.3%	10.5%	2.1%	13.7%	1.8%	-0.0%	-0.2%	8.7%	12.2%	-0.4%	15.8%
Missouri
Resident Population	6,154,913	5,988,927	5,595,211	5,117,073	4,916,686	4,676,501	4,319,813	3,954,653	3,784,664	3,629,367	3,404,055	3,293,335
Percent Change	2.8%	7.0%	9.3%	4.1%	5.1%	8.3%	9.2%	4.5%	4.3%	6.6%	3.4%	6.0%
Montana
Resident Population	1,084,225	989,415	902,195	799,065	786,690	694,409	674,767	591,024	559,456	537,606	548,889	376,053
Percent Change	9.6%	9.7%	12.9%	1.6%	13.3%	2.9%	14.2%	5.6%	4.1%	-2.1%	46.0%	54.5%
Nebraska
Resident Population	1,961,504	1,826,341	1,711,263	1,578,385	1,569,825	1,483,493	1,411,330	1,325,510	1,315,834	1,377,963	1,296,372	1,192,214
Percent Change	7.4%	6.7%	8.4%	0.5%	5.8%	5.1%	6.5%	0.7%	-4.5%	6.3%	8.7%	11.8%
Nevada
Resident Population	3,104,614	2,700,551	1,998,257	1,201,833	800,493	488,738	285,278	160,083	110,247	91,058	77,407	81,875
Percent Change	15.0%	35.1%	66.3%	50.1%	63.8%	71.3%	78.2%	45.2%	21.1%	17.6%	-5.5%	93.4%
New Hampshire
Resident Population	1,377,529	1,316,470	1,235,786	1,109,252	920,610	737,681	606,921	533,242	491,524	465,293	443,083	430,572
Percent Change	4.6%	6.5%	11.4%	20.5%	24.8%	21.5%	13.8%	8.5%	5.6%	5.0%	2.9%	4.6%
New Jersey
Resident Population	9,288,994	8,791,894	8,414,350	7,730,188	7,364,823	7,168,164	6,066,782	4,835,329	4,160,165	4,041,334	3,155,900	2,537,167
Percent Change	5.7%	4.5%	8.9%	5.0%	2.7%	18.2%	25.5%	16.2%	2.9%	28.1%	24.4%	34.7%
New Mexico
Resident Population	2,117,522	2,059,179	1,819,046	1,515,069	1,302,894	1,016,000	951,023	681,187	531,818	423,317	360,350	327,301
Percent Change	2.8%	13.2%	20.1%	16.3%	28.2%	6.8%	39.6%	28.1%	25.6%	17.5%	10.1%	67.6%
New York
Resident Population	20,201,249	19,378,102	18,976,457	17,990,455	17,558,072	18,236,967	16,782,304	14,830,192	13,479,142	12,588,066	10,385,227	9,113,614
Percent Change	4.2%	2.1%	5.5%	2.5%	-3.7%	8.7%	13.2%	10.0%	7.1%	21.2%	14.0%	25.4%
North Carolina
Resident Population	10,439,388	9,535,483	8,049,313	6,628,637	5,881,766	5,082,059	4,556,155	4,061,929	3,571,623	3,170,276	2,559,123	2,206,287
Percent Change	9.5%	18.5%	21.4%	12.7%	15.7%	11.5%	12.2%	13.7%	12.7%	23.9%	16.0%	16.5%
North Dakota
Resident Population	779,094	672,591	642,200	638,800	652,717	617,761	632,446	619,636	641,935	680,845	646,872	577,056
Percent Change	15.8%	4.7%	0.5%	-2.1%	5.7%	-2.3%	2.1%	-3.5%	-5.7%	5.3%	12.1%	80.8%
Ohio
Resident Population	11,799,448	11,536,504	11,353,140	10,847,115	10,797,630	10,652,017	9,706,397	7,946,627	6,907,612	6,646,697	5,759,394	4,767,121
Percent Change	2.3%	1.6%	4.7%	0.5%	1.4%	9.7%	22.1%	15.0%	3.9%	15.4%	20.8%	14.7%
Oklahoma
Resident Population	3,959,353	3,751,351	3,450,654	3,145,585	3,025,290	2,559,229	2,328,284	2,233,351	2,336,434	2,396,040	2,028,283	1,657,155
Percent Change	5.5%	8.7%	9.7%	4.0%	18.2%	9.9%	4.3%	-4.4%	-2.5%	18.1%	22.4%	109.7%
Oregon
Resident Population	4,237,256	3,831,074	3,421,399	2,842,321	2,633,105	2,091,385	1,768,687	1,521,341	1,089,684	953,786	783,389	672,765
Percent Change	10.6%	12.0%	20.4%	7.9%	25.9%	18.2%	16.3%	39.6%	14.2%	21.8%	16.4%	62.7%
Pennsylvania
Resident Population	13,002,700	12,702,379	12,281,054	11,881,643	11,863,895	11,793,909	11,319,366	10,498,012	9,900,180	9,631,350	8,720,017	7,665,111
Percent Change	2.4%	3.4%	3.4%	0.1%	0.6%	4.2%	7.8%	6.0%	2.8%	10.5%	13.8%	21.6%
Rhode Island
Resident Population	1,097,379	1,052,567	1,048,319	1,003,464	947,154	946,725	859,488	791,896	713,346	687,497	604,397	542,610
Percent Change	4.3%	0.4%	4.5%	5.9%	0.0%	10.1%	8.5%	11.0%	3.8%	13.7%	11.4%	26.6%
South Carolina
Resident Population	5,118,425	4,625,364	4,012,012	3,486,703	3,121,820	2,590,516	2,382,594	2,117,027	1,899,804	1,738,765	1,683,724	1,515,400
Percent Change	10.7%	15.3%	15.1%	11.7%	20.5%	8.7%	12.5%	11.4%	9.3%	3.3%	11.1%	13.1%
South Dakota
Resident Population	886,667	814,180	754,844	696,004	690,768	665,507	680,514	652,740	642,961	692,849	636,547	583,888
Percent Change	8.9%	7.9%	8.5%	0.8%	3.8%	-2.2%	4.3%	1.5%	-7.2%	8.8%	9.0%	45.4%
Tennessee
Resident Population	6,910,840	6,346,105	5,689,283	4,877,185	4,591,120	3,923,687	3,567,089	3,291,718	2,915,841	2,616,556	2,337,885	2,184,789
Percent Change	8.9%	11.5%	16.7%	6.2%	17.0%	10.0%	8.4%	12.9%	11.4%	11.9%	7.0%	8.1%
Texas
Resident Population	29,145,505	25,145,561	20,851,820	16,986,510	14,229,191	11,196,730	9,579,677	7,711,194	6,414,824	5,824,715	4,663,228	3,896,542
Percent Change	15.9%	20.6%	22.8%	19.4%	27.1%	16.9%	24.2%	20.2%	10.1%	24.9%	19.7%	27.8%
Utah
Resident Population	3,271,616	2,763,885	2,233,169	1,722,850	1,461,037	1,059,273	890,627	688,862	550,310	507,847	449,396	373,351
Percent Change	18.4%	23.8%	29.6%	17.9%	37.9%	18.9%	29.3%	25.2%	8.4%	13.0%	20.4%	34.9%
Vermont
Resident Population	643,077	625,741	608,827	562,758	511,456	444,330	389,881	377,747	359,231	359,611	352,428	355,956
Percent Change	2.8%	2.8%	8.2%	10.0%	15.1%	14.0%	3.2%	5.2%	-0.1%	2.0%	-1.0%	3.6%
Virginia
Resident Population	8,631,393	8,001,024	7,078,515	6,187,358	5,346,818	4,648,494	3,966,949	3,318,680	2,677,773	2,421,851	2,309,187	2,061,612
Percent Change	7.9%	13.0%	14.4%	15.7%	15.0%	17.2%	19.5%	23.9%	10.6%	4.9%	12.0%	11.2%
Washington
Resident Population	7,705,281	6,724,540	5,894,121	4,866,692	4,132,156	3,409,169	2,853,214	2,378,963	1,736,191	1,563,396	1,356,621	1,141,990
Percent Change	14.6%	14.1%	21.1%	17.8%	21.2%	19.5%	19.9%	37.0%	11.1%	15.2%	18.8%	120.4%
West Virginia
Resident Population	1,793,716	1,852,994	1,808,344	1,793,477	1,949,644	1,744,237	1,860,421	2,005,552	1,901,974	1,729,205	1,463,701	1,221,119
Percent Change	-3.2%	2.5%	0.8%	-8.0%	11.8%	-6.2%	-7.2%	5.4%	10.0%	18.1%	19.9%	27.4%
Wisconsin
Resident Population	5,893,718	5,686,986	5,363,675	4,891,769	4,705,767	4,417,731	3,951,777	3,434,575	3,137,587	2,939,006	2,632,067	2,333,860
Percent Change	3.6%	6.0%	9.6%	4.0%	6.5%	11.8%	15.1%	9.5%	6.8%	11.7%	12.8%	12.8%
Wyoming
Resident Population	576,851	563,626	493,782	453,588	469,557	332,416	330,066	290,529	250,742	225,565	194,402	145,965
Percent Change	2.3%	14.1%	8.9%	-3.4%	41.3%	0.7%	13.6%	15.9%	11.2%	16.0%	33.2%	57.7%
Puerto Rico
Resident Population	3,285,874	3,725,789	3,808,610	3,522,037	3,196,520	2,712,033	2,349,544	2,210,703	1,869,255	1,543,913	1,299,809	1,118,012
Percent Change	-11.8%	-2.2%	8.1%	10.2%	17.9%	15.4%	6.3%	18.3%	21.1%	18.8%	16.3%	17.3%