Population by State: 1970, 1980, 1990 and 2000

 Population1Population Per Square Mile2
 200019901980319702000199019801970
United States281,422248,710226,546203,30279.670.364.157.5
         
Alabama4,4474,0413,8943,44487.679.676.767.9
Alaska6275004023031.110.70.5
Arizona5,1313,6652,7181,77545.232.323.915.6
Arkansas2,6732,3512,2861,92351.345.143.936.9
California33,87229,76023,66819,971217.2190.8151.7128
         
Colorado4,3013,2942,8902,21041.531.827.921.3
Connecticut3,4063,2873,1083,032702.9678.5641.4625.8
Delaware784666594548401.1340.8304280.4
District of Columbia5726076387579,316.409,949.2010,466.1012,404.40
Florida15,98212,9389,7466,791296.4239.6180.5125.8
         
Georgia8,1866,4785,4634,588141.4111.894.379.2
Hawaii1,2121,108965770188.6172.5150.2119.9
Idaho1,2941,00794471315.612.211.48.6
Illinois12,41911,43111,42711,110223.4205.6205.6199.9
Indiana6,0805,5445,4905,195169.5154.6153.1144.8
         
Iowa2,9262,7772,9142,82552.449.752.150.6
Kansas2,6882,4782,3642,24932.930.328.927.5
Kentucky4,0423,6853,6613,221101.792.892.181.1
Louisiana4,4694,2204,2063,645102.696.996.583.7
Maine1,2751,2281,12599441.339.836.532.2
         
Maryland5,2964,7814,2173,924541.9489.2431.4401.4
Massachusetts6,3496,0165,7375,689809.8767.6732725.8
Michigan9,9389,2959,2628,882175163.6163156.3
Minnesota4,9194,3754,0763,80661.85551.247.8
Mississippi2,8452,5732,5212,21760.654.853.747.3
         
Missouri5,5955,1174,9174,67881.274.371.467.9
Montana9027997876946.25.55.44.8
Nebraska1,7111,5781,5701,48522.320.520.419.3
Nevada1,9981,20280048918.210.97.34.5
New Hampshire1,2361,109921738137.8123.7102.682.2
         
New Jersey8,4147,7307,3657,1711,134.401,041.90992.7966.6
New Mexico1,8191,5151,3031,0171512.510.78.4
New York18,97617,99017,55818,241401.9381371.8386.3
North Carolina8,0496,6295,8825,084165.2136.1120.7104.4
North Dakota6426396536189.39.39.59
         
Ohio11,35310,84710,79810,657277.3264.9263.7260.2
Oklahoma3,4513,1463,0252,55950.345.844.137.3
Oregon3,4212,8422,6332,09235.629.627.421.8
Pennsylvania12,28111,88211,86411,801274265.1264.7263.3
Rhode Island1,0481,0039479501,003.20960.3906.4908.8
         
South Carolina4,0123,4873,1222,591133.2115.8103.686
South Dakota7556966916669.99.29.18.8
Tennessee5,6894,8774,5913,926138118.3111.495.2
Texas20,85216,98714,22911,19979.664.954.342.8
Utah2,2331,7231,4611,05927.22117.812.9
         
Vermont60956351144565.860.855.348.1
Virginia7,0796,1875,3474,651178.8156.3135117.5
Washington5,8944,8674,1323,41388.673.162.151.3
West Virginia1,8081,7931,9501,74475.174.58172.4
Wisconsin5,3644,8924,7064,41898.890.186.681.3
         
Wyoming4944544703325.14.74.83.4

(1) As of April 1
(2) Persons per square mile were calculated on the basis of land data from the 1990 and 2000 Census.
(3) Total population count has been revised since the 1980 Census publications. Numbers by age, race, Hispanic origin and sex have not been corrected.
Note: Due to rounding, population may not sum to total.

Source: US Department of Commerce, Bureau of the Census
Prepared by the Pennsylvania State Data Center