(Links below lead to Quick Facts for Tennessee Counties: People, Business & Geography at U.S. Census Bureau.)
| Area | 7/1/2009 | 7/1/2008 | 7/1/2007 | 7/1/2006 | 7/1/2005 | 7/1/2004 | 7/1/2003 | 7/1/2002 | 7/1/2001 | 7/1/2000 | Census 2000 |
| Tennessee | 6,296,254 | 6,240,456 | 6,172,862 | 6,089,453 | 5,995,748 | 5,916,762 | 5,856,522 | 5,803,306 | 5,755,443 | 5,703,243 | 5,689,283 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Anderson County | 74,849 | 74,182 | 73,322 | 72,810 | 71,747 | 71,338 | 71,382 | 71,354 | 71,323 | 71,229 | 71,330 |
| Bedford County | 45,947 | 45,384 | 44,531 | 43,444 | 42,147 | 40,981 | 40,002 | 39,185 | 38,538 | 37,822 | 37,586 |
| Benton County | 16,025 | 16,071 | 16,152 | 16,139 | 16,265 | 16,322 | 16,381 | 16,479 | 16,626 | 16,535 | 16,537 |
| Bledsoe County | 12,967 | 13,114 | 13,056 | 12,867 | 12,702 | 12,634 | 12,523 | 12,457 | 12,476 | 12,414 | 12,367 |
| Blount County | 122,784 | 121,622 | 119,828 | 118,037 | 115,174 | 113,051 | 111,091 | 109,512 | 107,929 | 106,212 | 105,823 |
| Bradley County | 97,710 | 96,644 | 95,497 | 93,804 | 92,264 | 91,162 | 90,089 | 89,557 | 88,859 | 88,203 | 87,965 |
| Campbell County | 40,970 | 40,781 | 40,562 | 40,505 | 40,412 | 40,387 | 39,960 | 39,839 | 39,805 | 39,861 | 39,854 |
| Cannon County | 13,860 | 13,834 | 13,430 | 13,266 | 13,136 | 13,103 | 13,009 | 12,961 | 12,987 | 12,906 | 12,826 |
| Carroll County | 28,517 | 28,658 | 28,783 | 28,775 | 28,695 | 29,099 | 29,205 | 29,215 | 29,512 | 29,477 | 29,475 |
| Carter County | 59,043 | 59,172 | 58,938 | 58,956 | 58,666 | 58,412 | 58,260 | 56,830 | 56,875 | 56,834 | 56,742 |
| Cheatham County | 39,876 | 39,532 | 39,148 | 38,615 | 38,037 | 37,580 | 37,166 | 36,940 | 36,551 | 36,093 | 35,912 |
| Chester County | 16,312 | 16,284 | 16,078 | 15,978 | 15,879 | 15,793 | 15,549 | 15,857 | 15,845 | 15,568 | 15,540 |
| Claiborne County | 31,243 | 31,289 | 31,105 | 30,964 | 30,806 | 30,555 | 30,338 | 30,038 | 30,108 | 29,992 | 29,862 |
| Clay County | 7,895 | 7,895 | 7,923 | 7,997 | 7,973 | 7,966 | 7,927 | 7,945 | 7,938 | 7,983 | 7,976 |
| Cocke County | 36,047 | 35,804 | 35,393 | 35,079 | 34,708 | 34,455 | 34,287 | 33,982 | 33,670 | 33,630 | 33,565 |
| Coffee County | 52,521 | 52,173 | 51,739 | 51,400 | 50,637 | 49,930 | 49,494 | 49,013 | 48,554 | 48,195 | 48,014 |
| Crockett County | 14,492 | 14,460 | 14,403 | 14,333 | 14,354 | 14,372 | 14,318 | 14,462 | 14,536 | 14,550 | 14,532 |
| Cumberland County | 54,109 | 53,765 | 53,264 | 52,263 | 50,859 | 49,888 | 49,090 | 48,597 | 47,694 | 47,024 | 46,802 |
| Davidson County | 635,710 | 628,207 | 621,384 | 614,609 | 607,413 | 596,961 | 588,126 | 581,978 | 578,527 | 570,320 | 569,891 |
| Decatur County | 11,525 | 11,537 | 11,505 | 11,364 | 11,428 | 11,523 | 11,503 | 11,604 | 11,671 | 11,703 | 11,731 |
| DeKalb County | 18,954 | 18,898 | 18,588 | 18,423 | 18,257 | 18,147 | 17,952 | 17,734 | 17,533 | 17,449 | 17,423 |
| Dickson County | 48,230 | 47,915 | 47,411 | 46,439 | 45,705 | 45,211 | 44,849 | 44,344 | 43,866 | 43,353 | 43,156 |
| Dyer County | 37,811 | 37,722 | 37,680 | 37,689 | 37,586 | 37,291 | 37,161 | 37,068 | 37,108 | 37,320 | 37,279 |
| Fayette County | 38,785 | 38,229 | 37,218 | 35,877 | 33,993 | 33,137 | 32,023 | 31,016 | 30,191 | 29,099 | 28,806 |
| Fentress County | 17,677 | 17,624 | 17,406 | 17,334 | 17,019 | 16,846 | 16,848 | 16,818 | 16,696 | 16,639 | 16,625 |
| Franklin County | 41,310 | 41,189 | 41,190 | 40,888 | 40,529 | 40,354 | 40,143 | 39,964 | 39,628 | 39,326 | 39,270 |
| Gibson County | 49,468 | 49,148 | 48,435 | 48,022 | 47,856 | 47,792 | 47,690 | 47,908 | 47,999 | 48,154 | 48,152 |
| Giles County | 29,082 | 29,174 | 29,011 | 29,054 | 29,054 | 29,048 | 29,126 | 29,365 | 29,559 | 29,467 | 29,447 |
| Grainger County | 22,857 | 22,741 | 22,610 | 22,438 | 22,100 | 21,702 | 21,413 | 21,077 | 20,831 | 20,737 | 20,659 |
| Greene County | 66,282 | 66,090 | 65,855 | 65,391 | 64,874 | 64,159 | 63,665 | 63,426 | 63,272 | 63,035 | 62,909 |
| Grundy County | 14,130 | 14,243 | 14,311 | 14,295 | 14,330 | 14,310 | 14,228 | 14,256 | 14,220 | 14,333 | 14,332 |
| Hamblen County | 63,033 | 62,515 | 61,950 | 60,875 | 60,115 | 59,278 | 58,738 | 58,395 | 58,778 | 58,247 | 58,128 |
| Hamilton County | 337,175 | 334,123 | 331,117 | 328,551 | 323,740 | 319,905 | 316,875 | 314,524 | 311,628 | 308,103 | 307,896 |
| Hancock County | 6,588 | 6,607 | 6,679 | 6,599 | 6,694 | 6,645 | 6,623 | 6,748 | 6,785 | 6,781 | 6,786 |
| Hardeman County | 27,613 | 27,803 | 27,805 | 27,779 | 27,795 | 27,803 | 27,887 | 28,071 | 28,127 | 28,132 | 28,105 |
| Hardin County | 26,258 | 26,255 | 26,149 | 25,990 | 25,811 | 25,598 | 25,718 | 25,811 | 25,766 | 25,575 | 25,578 |
| Hawkins County | 57,784 | 57,459 | 57,025 | 56,552 | 55,967 | 55,381 | 55,002 | 54,505 | 54,147 | 53,689 | 53,563 |
| Haywood County | 18,881 | 19,030 | 19,165 | 19,299 | 19,402 | 19,590 | 19,472 | 19,547 | 19,844 | 19,819 | 19,797 |
| Henderson County | 27,037 | 26,981 | 26,759 | 26,523 | 26,137 | 25,892 | 25,832 | 25,767 | 25,661 | 25,581 | 25,522 |
| Henry County | 31,876 | 31,751 | 31,517 | 31,399 | 31,294 | 31,077 | 31,052 | 31,258 | 31,169 | 31,122 | 31,115 |
| Hickman County | 23,805 | 23,877 | 23,784 | 23,518 | 23,365 | 23,377 | 23,066 | 23,050 | 22,703 | 22,436 | 22,295 |
| Houston County | 8,154 | 8,123 | 8,053 | 7,936 | 7,939 | 7,879 | 8,000 | 7,985 | 8,031 | 8,018 | 8,088 |
| Humphreys County | 18,274 | 18,221 | 18,258 | 18,098 | 17,904 | 17,842 | 17,902 | 17,935 | 18,038 | 17,910 | 17,929 |
| Jackson County | 10,875 | 10,934 | 10,850 | 10,841 | 10,979 | 11,069 | 11,079 | 11,092 | 11,116 | 11,032 | 10,984 |
| Jefferson County | 51,722 | 51,323 | 50,419 | 49,229 | 47,889 | 47,274 | 46,702 | 45,737 | 45,166 | 44,580 | 44,294 |
| Johnson County | 18,006 | 18,063 | 18,074 | 17,922 | 18,031 | 17,917 | 17,893 | 17,720 | 17,671 | 17,517 | 17,499 |
| Knox County | 435,725 | 431,072 | 424,716 | 417,230 | 409,530 | 403,432 | 399,091 | 392,935 | 387,819 | 383,059 | 382,032 |
| Lake County | 7,303 | 7,338 | 7,412 | 7,454 | 7,511 | 7,616 | 7,829 | 7,882 | 7,955 | 7,940 | 7,954 |
| Lauderdale County | 26,471 | 26,602 | 26,599 | 26,582 | 26,587 | 26,637 | 26,907 | 27,075 | 27,166 | 27,062 | 27,101 |
| Lawrence County | 41,314 | 41,060 | 40,884 | 40,595 | 40,641 | 40,484 | 40,464 | 40,492 | 39,993 | 39,961 | 39,926 |
| Lewis County | 11,521 | 11,510 | 11,528 | 11,436 | 11,333 | 11,372 | 11,398 | 11,393 | 11,393 | 11,373 | 11,367 |
| Lincoln County | 33,374 | 33,156 | 32,733 | 32,434 | 32,121 | 31,765 | 31,746 | 31,616 | 31,564 | 31,396 | 31,340 |
| Loudon County | 46,725 | 46,216 | 45,346 | 44,363 | 43,228 | 42,139 | 41,406 | 40,741 | 39,965 | 39,214 | 39,086 |
| Macon County | 22,057 | 22,007 | 21,695 | 21,544 | 21,236 | 21,131 | 20,897 | 20,771 | 20,811 | 20,444 | 20,386 |
| Madison County | 97,317 | 96,724 | 96,616 | 96,182 | 94,893 | 94,208 | 93,710 | 93,483 | 92,972 | 92,013 | 91,837 |
| Marion County | 28,068 | 28,078 | 28,019 | 27,934 | 27,699 | 27,737 | 27,930 | 27,806 | 27,822 | 27,766 | 27,776 |
| Marshall County | 30,279 | 30,015 | 29,382 | 28,716 | 28,093 | 27,776 | 27,427 | 27,291 | 27,132 | 26,880 | 26,767 |
| Maury County | 84,302 | 82,727 | 80,420 | 77,860 | 75,639 | 74,235 | 72,754 | 71,265 | 70,161 | 69,694 | 69,498 |
| McMinn County | 52,739 | 52,574 | 52,115 | 51,753 | 51,092 | 50,498 | 50,278 | 50,052 | 49,786 | 49,171 | 49,015 |
| McNairy County | 25,796 | 25,630 | 25,398 | 25,318 | 25,038 | 24,834 | 24,726 | 24,581 | 24,587 | 24,697 | 24,653 |
| Meigs County | 12,108 | 11,931 | 11,704 | 11,565 | 11,426 | 11,381 | 11,243 | 11,249 | 11,227 | 11,122 | 11,086 |
| Monroe County | 45,830 | 45,670 | 44,815 | 43,820 | 42,877 | 41,871 | 40,873 | 40,234 | 39,567 | 39,174 | 38,961 |
| Montgomery County | 160,978 | 155,495 | 154,860 | 148,333 | 147,789 | 141,464 | 138,915 | 136,811 | 135,712 | 135,225 | 134,768 |
| Moore County | 6,096 | 6,114 | 6,043 | 5,985 | 5,982 | 5,923 | 5,857 | 5,911 | 5,789 | 5,765 | 5,740 |
| Morgan County | 18,738 | 19,568 | 19,585 | 19,306 | 19,275 | 20,020 | 20,063 | 19,994 | 19,964 | 19,775 | 19,757 |
| Obion County | 31,431 | 31,565 | 31,575 | 31,618 | 31,860 | 32,090 | 32,155 | 32,229 | 32,300 | 32,487 | 32,450 |
| Overton County | 21,060 | 20,921 | 20,943 | 20,718 | 20,440 | 20,358 | 20,060 | 20,210 | 20,181 | 20,171 | 20,118 |
| Perry County | 7,826 | 7,774 | 7,678 | 7,607 | 7,587 | 7,594 | 7,620 | 7,543 | 7,497 | 7,637 | 7,631 |
| Pickett County | 4,783 | 4,828 | 4,791 | 4,803 | 4,811 | 4,836 | 4,916 | 5,019 | 4,961 | 4,930 | 4,945 |
| Polk County | 15,648 | 15,770 | 15,726 | 15,780 | 15,749 | 15,777 | 15,967 | 16,007 | 16,218 | 16,104 | 16,050 |
| Putnam County | 72,431 | 71,369 | 69,933 | 68,834 | 67,124 | 66,037 | 65,036 | 64,205 | 63,227 | 62,505 | 62,315 |
| Rhea County | 31,516 | 31,069 | 30,565 | 30,249 | 29,764 | 29,358 | 29,178 | 28,829 | 28,578 | 28,435 | 28,400 |
| Roane County | 53,508 | 53,473 | 53,309 | 53,084 | 52,556 | 52,624 | 52,404 | 52,094 | 52,044 | 51,939 | 51,910 |
| Robertson County | 66,581 | 65,424 | 63,652 | 61,928 | 60,019 | 58,871 | 57,874 | 56,954 | 55,962 | 54,829 | 54,433 |
| Rutherford County | 257,048 | 250,366 | 242,005 | 231,510 | 219,976 | 210,774 | 202,672 | 196,074 | 189,690 | 183,577 | 182,023 |
| Scott County | 21,866 | 21,944 | 21,948 | 21,820 | 21,681 | 21,546 | 21,460 | 21,532 | 21,450 | 21,171 | 21,127 |
| Sequatchie County | 13,915 | 13,672 | 13,464 | 13,125 | 12,710 | 12,362 | 12,044 | 11,772 | 11,540 | 11,428 | 11,370 |
| Sevier County | 86,243 | 85,361 | 83,952 | 82,075 | 79,607 | 77,311 | 75,636 | 74,398 | 73,218 | 71,701 | 71,170 |
| Shelby County | 920,232 | 919,137 | 919,964 | 919,179 | 912,418 | 908,922 | 906,280 | 902,605 | 899,543 | 898,279 | 897,472 |
| Smith County | 19,201 | 19,130 | 18,857 | 18,663 | 18,466 | 18,263 | 18,208 | 18,096 | 17,962 | 17,792 | 17,712 |
| Stewart County | 13,340 | 13,257 | 13,037 | 12,886 | 12,870 | 12,669 | 12,717 | 12,679 | 12,555 | 12,447 | 12,370 |
| Sullivan County | 154,552 | 154,039 | 153,500 | 152,505 | 151,974 | 151,601 | 152,392 | 152,605 | 152,421 | 152,921 | 153,048 |
| Sumner County | 158,759 | 155,704 | 152,578 | 148,547 | 143,782 | 140,853 | 137,950 | 136,009 | 133,631 | 131,163 | 130,449 |
| Tipton County | 59,495 | 58,841 | 57,719 | 56,460 | 55,202 | 53,942 | 53,575 | 53,064 | 52,517 | 51,537 | 51,271 |
| Trousdale County | 7,922 | 7,816 | 7,709 | 7,531 | 7,433 | 7,301 | 7,264 | 7,287 | 7,288 | 7,308 | 7,259 |
| Unicoi County | 17,740 | 17,737 | 17,702 | 17,693 | 17,558 | 17,633 | 17,687 | 17,612 | 17,559 | 17,667 | 17,667 |
| Union County | 19,164 | 19,118 | 18,931 | 18,787 | 18,637 | 18,570 | 18,581 | 18,402 | 18,283 | 17,859 | 17,808 |
| Van Buren County | 5,480 | 5,488 | 5,428 | 5,350 | 5,369 | 5,377 | 5,390 | 5,491 | 5,470 | 5,511 | 5,508 |
| Warren County | 40,481 | 40,162 | 39,910 | 39,652 | 39,372 | 39,184 | 39,072 | 38,691 | 38,682 | 38,404 | 38,276 |
| Washington County | 120,598 | 118,874 | 116,717 | 114,895 | 112,664 | 111,133 | 110,172 | 109,294 | 107,651 | 107,488 | 107,198 |
| Wayne County | 16,506 | 16,519 | 16,575 | 16,664 | 16,696 | 16,761 | 16,845 | 16,965 | 17,029 | 16,833 | 16,842 |
| Weakley County | 33,459 | 33,379 | 33,231 | 33,336 | 33,542 | 33,544 | 33,944 | 34,208 | 34,351 | 34,894 | 34,895 |
| White County | 25,444 | 25,230 | 24,966 | 24,592 | 24,254 | 23,885 | 23,608 | 23,554 | 23,408 | 23,131 | 23,102 |
| Williamson County | 176,838 | 172,314 | 166,732 | 159,540 | 152,208 | 146,014 | 140,826 | 136,335 | 132,234 | 128,097 | 126,638 |
| Wilson County | 112,377 | 110,242 | 106,535 | 103,446 | 99,762 | 97,013 | 94,836 | 93,035 | 91,051 | 89,262 | 88,809 |
Source: Population Division, U.S. Census Bureau