U.S. States Ranked By Population

California, Texas, and Florida are the most populous U.S. states, while Wyoming, Vermont, and the District of Columbia are the least populous.

The United States of America (USA) is a federal republic comprising 50 states, a federal district and five other territories that are self-governing. The population of about 324 million people is spread across an area of 3.8 million square miles. The population varies from state depending on several factors. The US population distribution like any other country is centered around economic regions with strong economic activities.

Two Most Populated US States


California is the most populated of the state with a population of 37,254,503 in 2010 and 39,144,818 in 2015 representing 12.18% of the entire US population. The population growth rate over the five years was 5.07%, which was among the fastest growing states in the country. The state of California covers an area 403,465 Km2 and is the third largest area in the US and implying the population density in 2015 was 97 people per square kilometer. On the economic front, the state of California has the highest output in the agricultural industry. The economy is also concentrated in finance, real estate, business services and has also pioneered the film industry. Chevron, Apple, and McKesson, three of the world’s largest firms, also have their headquarters in California. With such robust economic activities, the population is bound to be high as people look to exploit the available opportunities. If California were a country, it would rank as the 6th largest economy in the world, and such are the pulling factors that attract people to California.


Texas is the second most populated state with a population of 25,146,105 in 2010 and 27,469,114 people in 2015 representing 8.55% of the US population. The population growth rate from 2010 to 2015 was 9.23% which was also the highest growth rate in the US over the period. The state of Texas total area of 676,587 Km2 making it the second biggest area in the US meaning the population density in 2015 was 40.6 people per square kilometer. The state was earlier associated with the cattle industry, but oil discoveries in the state initiated an economic surge at the beginning of the twentieth century. The state invested in education and had developed into a diversified economy, leading in many industries such as energy, electronics, aerospace, and biomedical sciences. The state of Texas has been a leader in export revenue since 2002. The strong economy and different economic opportunities keep attracting people to the state.

Two Least Populated Regions Of The US

District of Columbia

Washington DC, formerly known as the District of Columbia is among the least populated regions in the US with a population of 601,767 people in 2010 and 672,228 people in 2015, representing 0.21% of the US population. The population growth rate over the five years was 11.9% representing the highest growth rate in the country. District of Columbia covers an area of 177km2 of which 10.67% is water. Washington DC is the capital of the US. An administrative center, Washington does not have robust economic scenery with its gross production as at 2010 ranking at 34 among the 50 states with a gross state product of $103.3 billion. The rate of unemployment as of June 2011 was at 9.8% and is considered a crime hub with about 60,000 of its population being ex-convicts.


Alaska is among the least populous regions with and had a population of 710,249 people in 2010 and 738, 432 people in 2015 representing 0.23% of the US population. The population change over the period of five years was 3.97%. Geographical factors contribute to its low population though it has the largest area covering 1,777,856 Km2. The state of Alaska is located in the extreme northwest of America. Its capital city Juneau has no connection by road to the rest of North America. The state itself has about 800km of Canada separating it from the US capital.

US States By Population

RankState or territoryPopulation estimate, July 1, 2015Census population, April 1, 2010Percent of total U.S. pop., 2015
1 California39,144,81837,254,50312.18%
2 Texas27,469,11425,146,1058.55%
3 Florida20,271,27218,804,6236.31%
4 New York19,795,79119,378,0876.16%
5 Illinois12,859,99512,831,5494.00%
6 Pennsylvania12,802,50312,702,8873.98%
7 Ohio11,613,42311,536,7253.61%
8 Georgia10,214,8609,688,6813.18%
9 North Carolina10,042,8029,535,6923.12%
10 Michigan9,922,5769,884,1293.11%
11 New Jersey8,958,0138,791,9362.79%
12 Virginia8,382,9938,001,0452.61%
13 Washington7,170,3516,724,5432.23%
14 Arizona6,828,0656,392,3072.12%
15 Massachusetts6,794,4226,547,8172.11%
16 Indiana6,619,6806,484,2292.06%
17 Tennessee6,600,2996,346,2752.05%
18 Missouri6,083,6725,988,9271.89%
19 Maryland6,006,4015,773,7851.87%
20 Wisconsin5,771,3375,687,2891.80%
21 Minnesota5,489,5945,303,9251.71%
22 Colorado5,456,5745,029,3241.70%
23 South Carolina4,896,1464,625,4011.52%
24 Alabama4,858,9794,780,1271.51%
25 Louisiana4,670,7244,533,4791.45%
26 Kentucky4,425,0924,339,3491.38%
27 Oregon4,028,9773,831,0731.25%
28 Oklahoma3,911,3383,751,6161.22%
29 Connecticut3,590,8863,574,1181.13%
30 Puerto Rico3,474,1823,726,1571.08%
31 Iowa3,123,8993,046,8690.97%
32 Utah2,995,9192,763,8880.93%
33 Mississippi2,992,3332,968,1030.93%
34 Arkansas2,978,2042,915,9580.93%
35 Kansas2,911,6412,853,1320.91%
36 Nevada2,890,8452,700,6910.90%
37 New Mexico2,085,1092,059,1920.65%
38 Nebraska1,896,1901,826,3410.59%
39 West Virginia1,844,1281,853,0110.57%
40 Idaho1,654,9301,567,6520.51%
41 Hawaii1,431,6031,360,3010.45%
42 New Hampshire1,330,6081,316,4660.41%
43 Maine1,329,3281,328,3610.41%
44 Rhode Island1,056,2981,052,9310.33%
45 Montana1,032,949989,4170.32%
46 Delaware945,934897,9360.29%
47 South Dakota858,469814,1910.27%
48 North Dakota756,927672,5910.24%
49 Alaska738,432710,2490.23%
50 District of Columbia672,228601,7670.21%
51 Vermont626,042625,7450.19%
52 Wyoming586,107563,7670.18%
53 Guam161,785159,358[4]0.06%
54 U.S. Virgin Islands103,574106,405[5]0.04%
55 American Samoa54,34355,519[6]0.02%
56 Northern Mariana Islands52,34453,883[7]0.02%
57The fifty states320,746,592308,156,33898.48%
58Fifty states + D.C.321,418,820308,758,10598.67%
59Total U.S. territory312,913,872100.00%

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