Kentucky
As of the census of 2000, there were 4041769 people in the state, organized into 1590647 households, and 1104398 families residing in the state. The population density was 101.7 people per square mile (39.27/km˛), making its United States's 23rd most densely populated state. There were 1750927 housing units at an average density of 44.1 per square mile (17.03/km˛). The average household size was 2.47 people, and the average family size was 2.97 people. In the state the population is diverse age-wise, with 24.6% under the age of 18, 9.9% from 18 to 24, 30% from 25 to 44, 23% from 45 to 64, and 12.5% who were 65 or older. For every 100 females there were 95.6 males. For every 100 females age 18 and over, there were 92.5 males. The median age is 35.9 years, the median age of male residents at 34.6 and the median age of female residents at 37.1. The July 2008 population estimate is 4041769, The racial makeup of the state was 90.08% White, 7.32% Black or African American, 0.21% American Indian, 0.74% Asian, 0.04% Native Hawaiian, 1.05% from two or more races and 0.56% Other races.
The median income for a household in the state was $33672, it is the seventh poorest state in terms of median household income. The median income for a family in the state was $40939, making it the eighth lowest state by median family income in United States. The per capita income for the state was $18093, it is the 11th lowest state by per capita income in the U.S. state of America. The median income was $20951, The median income for males was $26288 versus $16163 for females. The Bureau of Economic Analysis estimates that the total GDP in 2008 was $156.4 billion, it is United States's 27th wealthiest state by GDP. Per capita personal income in 2008 was $29740.
In 2000, 1007452 pupils and students, of which 50.08% are male and 49.92% are female, 24.93% of the total population, are in the education system. Of which, percentage of enrollment student are in, 6.19% nursery or pri school, 5.48% kindergarten, 45.54% elementary school, 22.32% high school and 20.48% College graduate school.
| Rank | County | Total Area mi2 | Land Area mi2 | Water Area mi2 | Population | Density mi2 | Per capita Income | House hold Income | Family Income |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Adair County | 412.23 | 406.84 | 5.39 | 17244 | 42.4 | 14931 | 24055 | 29779 |
| 2 | Allen County | 352.04 | 346.12 | 5.92 | 17800 | 51.4 | 14506 | 31238 | 36815 |
| 3 | Anderson County | 204.28 | 202.67 | 1.61 | 19111 | 94.3 | 18621 | 45433 | 50837 |
| 4 | Ballard County | 273.6 | 251.16 | 22.44 | 8286 | 33 | 19035 | 32130 | 41386 |
| 5 | Barren County | 499.93 | 490.97 | 8.96 | 38033 | 77.5 | 16816 | 31240 | 37231 |
| 6 | Bath County | 283.94 | 279.46 | 4.48 | 11085 | 39.7 | 15326 | 26018 | 31758 |
| 7 | Bell County | 361.35 | 360.77 | 0.58 | 30060 | 83.3 | 11526 | 19057 | 23818 |
| 8 | Boone County | 256.96 | 246.26 | 10.7 | 85991 | 349.2 | 23535 | 53593 | 61114 |
| 9 | Bourbon County | 291.66 | 291.43 | 0.23 | 19360 | 66.4 | 18335 | 35038 | 42294 |
| 10 | Boyd County | 161.82 | 160.17 | 1.65 | 49752 | 310.6 | 18212 | 32749 | 41125 |
| 11 | Boyle County | 182.99 | 181.9 | 1.09 | 27697 | 152.3 | 18288 | 35241 | 42699 |
| 12 | Bracken County | 208.89 | 203.22 | 5.67 | 8279 | 40.7 | 16478 | 34823 | 40469 |
| 13 | Breathitt County | 495.29 | 495.19 | 0.09 | 16100 | 32.5 | 11044 | 19155 | 23721 |
| 14 | Breckinridge County | 585.53 | 572.41 | 13.12 | 18648 | 32.6 | 15402 | 30554 | 36575 |
| 15 | Bullitt County | 300.2 | 299.08 | 1.12 | 61236 | 204.8 | 18339 | 45106 | 49481 |
| 16 | Butler County | 431.52 | 428.08 | 3.44 | 13010 | 30.4 | 14617 | 29405 | 35317 |
| 17 | Caldwell County | 348.18 | 346.98 | 1.2 | 13060 | 37.6 | 16264 | 28686 | 35258 |
| 18 | Calloway County | 410.79 | 386.25 | 24.53 | 34177 | 88.5 | 16566 | 30134 | 39914 |
| 19 | Campbell County | 159.43 | 151.55 | 7.87 | 88616 | 584.7 | 20637 | 41903 | 51481 |
| 20 | Carlisle County | 199.02 | 192.49 | 6.54 | 5351 | 27.8 | 16276 | 30087 | 33433 |
| 21 | Carroll County | 137.27 | 130.09 | 7.18 | 10155 | 78.1 | 17057 | 35925 | 44037 |
| 22 | Carter County | 412.15 | 410.6 | 1.55 | 26889 | 65.5 | 13442 | 26427 | 31278 |
| 23 | Casey County | 445.73 | 445.61 | 0.12 | 15447 | 34.7 | 12867 | 21580 | 27044 |
| 24 | Christian County | 724.01 | 721.32 | 2.69 | 72265 | 100.2 | 14611 | 31177 | 35240 |
| 25 | Clark County | 255.16 | 254.31 | 0.85 | 33144 | 130.3 | 19170 | 39946 | 45647 |
| 26 | Clay County | 471.08 | 471.01 | 0.07 | 24556 | 52.1 | 9716 | 16271 | 18925 |
| 27 | Clinton County | 205.54 | 197.46 | 8.09 | 9634 | 48.8 | 13286 | 19563 | 25919 |
| 28 | Crittenden County | 370.95 | 362.14 | 8.81 | 9384 | 25.9 | 15262 | 29060 | 36462 |
| 29 | Cumberland County | 310.85 | 305.82 | 5.02 | 7147 | 23.4 | 12643 | 21572 | 28701 |
| 30 | Daviess County | 476.27 | 462.39 | 13.88 | 91545 | 198 | 18739 | 36813 | 45404 |
| 31 | Edmonson County | 308.01 | 302.62 | 5.39 | 11644 | 38.5 | 14480 | 25413 | 31843 |
| 32 | Elliott County | 235.2 | 233.96 | 1.24 | 6748 | 28.8 | 12067 | 21014 | 27125 |
| 33 | Estill County | 255.7 | 253.93 | 1.76 | 15307 | 60.3 | 12285 | 23318 | 27284 |
| 34 | Fayette County | 285.52 | 284.52 | 1 | 260512 | 915.6 | 23109 | 39813 | 53264 |
| 35 | Fleming County | 351.47 | 350.84 | 0.62 | 13792 | 39.3 | 14214 | 27990 | 33300 |
| 36 | Floyd County | 395.46 | 394.29 | 1.16 | 42441 | 107.6 | 12442 | 21168 | 25717 |
| 37 | Franklin County | 212.11 | 210.46 | 1.65 | 47687 | 226.6 | 21229 | 40011 | 51052 |
| 38 | Fulton County | 230.55 | 208.95 | 21.6 | 7752 | 37.1 | 14309 | 24382 | 30788 |
| 39 | Gallatin County | 104.67 | 98.81 | 5.87 | 7870 | 79.7 | 16416 | 36422 | 41136 |
| 40 | Garrard County | 233.88 | 231.21 | 2.67 | 14792 | 64 | 16915 | 34284 | 41250 |
| 41 | Grant County | 260.79 | 259.93 | 0.86 | 22384 | 86.1 | 16776 | 38438 | 42605 |
| 42 | Graves County | 556.46 | 555.59 | 0.87 | 37028 | 66.6 | 16834 | 30874 | 38054 |
| 43 | Grayson County | 510.85 | 503.68 | 7.17 | 24053 | 47.8 | 14759 | 27639 | 33080 |
| 44 | Green County | 288.78 | 288.66 | 0.12 | 11518 | 39.9 | 16107 | 25463 | 31852 |
| 45 | Greenup County | 354.51 | 346.11 | 8.41 | 36891 | 106.6 | 17137 | 32142 | 38928 |
| 46 | Hancock County | 198.92 | 188.8 | 10.12 | 8392 | 44.4 | 16623 | 36914 | 42994 |
| 47 | Hardin County | 629.86 | 627.98 | 1.88 | 94174 | 150 | 17487 | 37744 | 43610 |
| 48 | Harlan County | 467.97 | 467.2 | 0.78 | 33202 | 71.1 | 11585 | 18665 | 23536 |
| 49 | Harrison County | 309.88 | 309.68 | 0.2 | 17983 | 58.1 | 17478 | 36210 | 42065 |
| 50 | Hart County | 417.91 | 415.93 | 1.98 | 17445 | 41.9 | 13495 | 25378 | 31746 |
| 51 | Henderson County | 467.24 | 440.12 | 27.11 | 44829 | 101.9 | 18470 | 35892 | 44703 |
| 52 | Henry County | 291.11 | 289.32 | 1.79 | 15060 | 52.1 | 17846 | 37263 | 45009 |
| 53 | Hickman County | 252.94 | 244.44 | 8.49 | 5262 | 21.5 | 17279 | 31615 | 37049 |
| 54 | Hopkins County | 554.23 | 550.56 | 3.67 | 46519 | 84.5 | 17382 | 30868 | 36794 |
| 55 | Jackson County | 346.57 | 346.33 | 0.24 | 13495 | 39 | 10711 | 20177 | 23638 |
| 56 | Jefferson County | 398.58 | 385.09 | 13.49 | 693604 | 1801.2 | 22352 | 39457 | 49161 |
| 57 | Jessamine County | 174.45 | 173.13 | 1.32 | 39041 | 225.5 | 18842 | 40096 | 46152 |
| 58 | Johnson County | 263.94 | 261.54 | 2.4 | 23445 | 89.6 | 14051 | 24911 | 29142 |
| 59 | Kenton County | 164.38 | 161.97 | 2.42 | 151464 | 935.2 | 22085 | 43906 | 52953 |
| 60 | Knott County | 353.01 | 352.19 | 0.82 | 17649 | 50.1 | 11297 | 20373 | 24930 |
| 61 | Knox County | 387.71 | 387.66 | 0.04 | 31795 | 82 | 10660 | 18294 | 23136 |
| 62 | Larue County | 263.72 | 263.2 | 0.53 | 13373 | 50.8 | 15865 | 32056 | 37786 |
| 63 | Laurel County | 443.74 | 435.67 | 8.07 | 52715 | 121 | 14165 | 27015 | 31318 |
| 64 | Lawrence County | 420.12 | 418.78 | 1.35 | 15569 | 37.2 | 12008 | 21610 | 26113 |
| 65 | Lee County | 211.22 | 209.86 | 1.36 | 7916 | 37.7 | 13325 | 18544 | 24918 |
| 66 | Leslie County | 404.36 | 404.03 | 0.33 | 12401 | 30.7 | 10429 | 18546 | 22225 |
| 67 | Letcher County | 339.12 | 339.04 | 0.07 | 25277 | 74.6 | 11984 | 21110 | 24869 |
| 68 | Lewis County | 495.7 | 484.49 | 11.21 | 14092 | 29.1 | 12031 | 22208 | 26109 |
| 69 | Lincoln County | 336.47 | 336.26 | 0.21 | 23361 | 69.5 | 13602 | 26542 | 32284 |
| 70 | Livingston County | 342.2 | 316.08 | 26.12 | 9804 | 31 | 17072 | 31776 | 39486 |
| 71 | Logan County | 557.1 | 555.68 | 1.41 | 26573 | 47.8 | 15962 | 32474 | 39307 |
| 72 | Lyon County | 256.42 | 215.7 | 40.71 | 8080 | 37.5 | 16016 | 31694 | 39940 |
| 73 | McCracken County | 268.08 | 251.02 | 17.05 | 65514 | 261 | 19533 | 33865 | 42513 |
| 74 | McCreary County | 430.64 | 427.7 | 2.94 | 17080 | 39.9 | 9896 | 19348 | 22261 |
| 75 | McLean County | 256.17 | 254.3 | 1.88 | 9938 | 39.1 | 16046 | 29675 | 35322 |
| 76 | Madison County | 443.11 | 440.68 | 2.42 | 70872 | 160.8 | 16790 | 32861 | 41383 |
| 77 | Magoffin County | 309.44 | 309.44 | 0.01 | 13332 | 43.1 | 10685 | 19421 | 24031 |
| 78 | Marion County | 346.86 | 346.39 | 0.47 | 18212 | 52.6 | 14472 | 30387 | 35648 |
| 79 | Marshall County | 340.32 | 304.89 | 35.43 | 30125 | 98.8 | 18069 | 35573 | 43670 |
| 80 | Martin County | 230.81 | 230.7 | 0.11 | 12578 | 54.5 | 10650 | 18279 | 21574 |
| 81 | Mason County | 246.6 | 241.11 | 5.49 | 16800 | 69.7 | 16589 | 30195 | 37257 |
| 82 | Meade County | 324.22 | 308.51 | 15.71 | 26349 | 85.4 | 16000 | 36966 | 40592 |
| 83 | Menifee County | 206.03 | 203.9 | 2.13 | 6556 | 32.2 | 11399 | 22064 | 26325 |
| 84 | Mercer County | 253.11 | 250.92 | 2.2 | 20817 | 83 | 17972 | 35555 | 43121 |
| 85 | Metcalfe County | 290.96 | 290.9 | 0.07 | 10037 | 34.5 | 13236 | 23540 | 29178 |
| 86 | Monroe County | 332.11 | 330.81 | 1.3 | 11756 | 35.5 | 14365 | 22356 | 27112 |
| 87 | Montgomery County | 198.8 | 198.59 | 0.21 | 22554 | 113.6 | 16701 | 31746 | 36939 |
| 88 | Morgan County | 383.73 | 381.26 | 2.47 | 13948 | 36.6 | 12657 | 21869 | 26135 |
| 89 | Muhlenberg County | 479.43 | 474.72 | 4.71 | 31839 | 67.1 | 14798 | 28566 | 33513 |
| 90 | Nelson County | 424.07 | 422.63 | 1.45 | 37477 | 88.7 | 18120 | 39010 | 44600 |
| 91 | Nicholas County | 196.85 | 196.61 | 0.24 | 6813 | 34.7 | 15880 | 29886 | 35491 |
| 92 | Ohio County | 596.73 | 593.79 | 2.94 | 22916 | 38.6 | 15317 | 29557 | 34970 |
| 93 | Oldham County | 196.54 | 189.19 | 7.36 | 46178 | 244.1 | 25374 | 63229 | 70495 |
| 94 | Owen County | 354.16 | 352.14 | 2.02 | 10547 | 30 | 15521 | 33310 | 38844 |
| 95 | Owsley County | 198.09 | 198.09 | 0 | 4858 | 24.5 | 10742 | 15805 | 18034 |
| 96 | Pendleton County | 281.87 | 280.54 | 1.33 | 14390 | 51.3 | 16551 | 38125 | 42589 |
| 97 | Perry County | 342.64 | 342.15 | 0.49 | 29390 | 85.9 | 12224 | 22089 | 26718 |
| 98 | Pike County | 788.84 | 787.69 | 1.15 | 68736 | 87.3 | 14005 | 23930 | 29302 |
| 99 | Powell County | 180.2 | 180.14 | 0.07 | 13237 | 73.5 | 13060 | 25515 | 30483 |
| 100 | Pulaski County | 677.05 | 661.6 | 15.45 | 56217 | 85 | 15352 | 27370 | 32350 |
| 101 | Robertson County | 100.11 | 100.07 | 0.04 | 2266 | 22.6 | 13404 | 30581 | 35521 |
| 102 | Rockcastle County | 318.06 | 317.53 | 0.54 | 16582 | 52.2 | 12337 | 23475 | 30278 |
| 103 | Rowan County | 286.25 | 280.82 | 5.43 | 22094 | 78.7 | 13888 | 28055 | 34338 |
| 104 | Russell County | 282.82 | 253.53 | 29.29 | 16315 | 64.4 | 13183 | 22042 | 27803 |
| 105 | Scott County | 285.3 | 284.72 | 0.57 | 33061 | 116.1 | 21490 | 47081 | 54117 |
| 106 | Shelby County | 385.65 | 384.19 | 1.46 | 33337 | 86.8 | 20195 | 45534 | 52764 |
| 107 | Simpson County | 236.19 | 236.19 | 0 | 16405 | 69.5 | 17150 | 36432 | 42525 |
| 108 | Spencer County | 191.8 | 185.9 | 5.89 | 11766 | 63.3 | 19848 | 47042 | 52038 |
| 109 | Taylor County | 277.05 | 269.83 | 7.22 | 22927 | 85 | 15162 | 28089 | 33854 |
| 110 | Todd County | 376.97 | 376.35 | 0.62 | 11971 | 31.8 | 15462 | 29718 | 36043 |
| 111 | Trigg County | 481.13 | 443.12 | 38.01 | 12597 | 28.4 | 17184 | 33002 | 40886 |
| 112 | Trimble County | 156.23 | 148.85 | 7.38 | 8125 | 54.6 | 16354 | 36192 | 41925 |
| 113 | Union County | 363.43 | 345.1 | 18.33 | 15637 | 45.3 | 17465 | 35018 | 43103 |
| 114 | Warren County | 547.69 | 545.21 | 2.48 | 92522 | 169.7 | 18847 | 36151 | 45142 |
| 115 | Washington County | 301.52 | 300.59 | 0.93 | 10916 | 36.3 | 15722 | 33136 | 39240 |
| 116 | Wayne County | 484.2 | 459.4 | 24.8 | 19923 | 43.4 | 12601 | 20863 | 24869 |
| 117 | Webster County | 335.68 | 334.75 | 0.93 | 14120 | 42.2 | 15657 | 31529 | 38208 |
| 118 | Whitley County | 445.15 | 440.15 | 4.99 | 35865 | 81.5 | 12777 | 22075 | 27871 |
| 119 | Wolfe County | 222.86 | 222.78 | 0.08 | 7065 | 31.7 | 10321 | 19310 | 23333 |
| 120 | Woodford County | 191.98 | 190.68 | 1.3 | 23208 | 121.7 | 22839 | 49491 | 58218 |