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Top 5 Most Populous Counties
95 Counties
| County | 2025 Pop. ↓ | Area (mi²) | Density | Change (2020) |
|---|---|---|---|---|
| Shelby County | 907,151 | 761 | 1,192 | -2.43% |
| Davidson County | 739,918 | 503 | 1,471 | 3.33% |
| Knox County | 511,920 | 508 | 1,008 | 6.53% |
| Hamilton County | 391,240 | 542 | 722 | 6.35% |
| Rutherford County | 384,343 | 619 | 621 | 11.95% |
| Williamson County | 272,960 | 583 | 468 | 9.35% |
| Montgomery County | 251,652 | 539 | 467 | 13.71% |
| Sumner County | 215,019 | 529 | 406 | 8.91% |
| Wilson County | 175,544 | 571 | 307 | 18.09% |
| Sullivan County | 163,352 | 414 | 395 | 3.23% |
| Blount County | 143,038 | 559 | 256 | 5.44% |
| Washington County | 140,656 | 327 | 430 | 5.58% |
| Maury County | 116,088 | 613 | 189 | 14% |
| Bradley County | 115,432 | 329 | 351 | 6.07% |
| Madison County | 101,428 | 557 | 182 | 2.62% |
| Sevier County | 100,144 | 593 | 169 | 1.29% |
| Putnam County | 85,836 | 401 | 214 | 7.19% |
| Anderson County | 82,555 | 337 | 245 | 6.76% |
| Robertson County | 80,098 | 476 | 168 | 9.78% |
| Greene County | 74,250 | 622 | 119 | 5.55% |
| Hamblen County | 68,964 | 161 | 428 | 6.85% |
| Cumberland County | 66,388 | 681 | 97 | 8.17% |
| Loudon County | 63,677 | 229 | 278 | 15.49% |
| Tipton County | 62,489 | 456 | 137 | 2.36% |
| Coffee County | 62,098 | 429 | 145 | 6.8% |
| Jefferson County | 60,537 | 275 | 220 | 10.23% |
| Hawkins County | 60,134 | 487 | 123 | 6.02% |
| Dickson County | 58,447 | 490 | 119 | 7.33% |
| McMinn County | 57,788 | 430 | 134 | 8.33% |
| Carter County | 57,756 | 341 | 169 | 2.43% |
| Roane County | 57,261 | 361 | 159 | 6.7% |
| Bedford County | 55,182 | 474 | 116 | 9.5% |
| Gibson County | 51,692 | 603 | 86 | 2.47% |
| Monroe County | 49,730 | 636 | 78 | 7.18% |
| Lawrence County | 46,901 | 617 | 76 | 6.16% |
| Franklin County | 45,592 | 554 | 82 | 6.49% |
| Fayette County | 44,870 | 704 | 64 | 7.18% |
| Warren County | 44,583 | 433 | 103 | 8.58% |
| Cheatham County | 42,961 | 302 | 142 | 4.55% |
| Campbell County | 40,251 | 480 | 84 | 2.4% |
| Marshall County | 38,686 | 375 | 103 | 12.22% |
| Cocke County | 37,920 | 436 | 87 | 5.21% |
| Lincoln County | 37,309 | 570 | 65 | 5.58% |
| Dyer County | 36,374 | 512 | 71 | -0.91% |
| Rhea County | 35,199 | 315 | 112 | 5.74% |
| Claiborne County | 33,402 | 435 | 77 | 4.17% |
| Henry County | 33,312 | 562 | 59 | 3.63% |
| Weakley County | 33,214 | 580 | 57 | 0.96% |
| Giles County | 31,127 | 611 | 51 | 2.58% |
| Marion County | 30,194 | 498 | 61 | 4.46% |
| Obion County | 30,119 | 545 | 55 | -2.13% |
| White County | 29,519 | 377 | 78 | 7.55% |
| Carroll County | 29,264 | 598 | 49 | 2.94% |
| Henderson County | 28,301 | 520 | 54 | 1.69% |
| Hardin County | 27,785 | 577 | 48 | 3.07% |
| Macon County | 27,541 | 307 | 90 | 8.99% |
| McNairy County | 26,141 | 563 | 46 | 1.09% |
| Hickman County | 25,930 | 612 | 42 | 3.84% |
| Grainger County | 25,449 | 281 | 91 | 7.98% |
| Hardeman County | 25,345 | 668 | 38 | -0.37% |
| Lauderdale County | 24,706 | 472 | 52 | -1.67% |
| Overton County | 23,744 | 433 | 55 | 5.12% |
| Scott County | 22,789 | 532 | 43 | 4.17% |
| Morgan County | 22,405 | 522 | 43 | 6.44% |
| DeKalb County | 22,157 | 304 | 73 | 9.74% |
| Union County | 21,381 | 224 | 95 | 7.74% |
| Smith County | 21,021 | 314 | 67 | 5.28% |
| Fentress County | 20,550 | 499 | 41 | 10.88% |
| Humphreys County | 19,815 | 531 | 37 | 4.31% |
| Johnson County | 18,636 | 298 | 63 | 3.57% |
| Polk County | 18,610 | 435 | 43 | 5.94% |
| Sequatchie County | 18,051 | 266 | 68 | 13.91% |
| Chester County | 18,030 | 286 | 63 | 3.71% |
| Unicoi County | 17,932 | 186 | 96 | 0.33% |
| Haywood County | 16,882 | 533 | 32 | -5.29% |
| Benton County | 16,179 | 394 | 41 | 2.06% |
| Bledsoe County | 16,174 | 407 | 40 | 8.15% |
| Wayne County | 15,901 | 734 | 22 | -2% |
| Cannon County | 15,233 | 266 | 57 | 4.62% |
| Stewart County | 14,484 | 460 | 31 | 5.65% |
| Grundy County | 14,304 | 360 | 40 | 5.58% |
| Meigs County | 14,192 | 195 | 73 | 10.8% |
| Crockett County | 13,955 | 266 | 52 | 0.36% |
| Lewis County | 13,690 | 282 | 49 | 8.59% |
| Jackson County | 12,408 | 309 | 40 | 6.68% |
| Trousdale County | 12,017 | 114 | 105 | 3.29% |
| Decatur County | 11,891 | 334 | 36 | 4.01% |
| Perry County | 9,063 | 415 | 22 | 8.07% |
| Houston County | 8,678 | 200 | 43 | 4.49% |
| Clay County | 8,042 | 237 | 34 | 5.9% |
| Hancock County | 7,113 | 222 | 32 | 7.35% |
| Van Buren County | 6,796 | 273 | 25 | 10.06% |
| Moore County | 6,772 | 129 | 52 | 4.73% |
| Lake County | 6,437 | 166 | 39 | -7.85% |
| Pickett County | 5,102 | 163 | 31 | 2.06% |
There are 95 counties in Tennessee.
Shelby County is the largest county in the state, with a population of 907,151. The most recent census shows that its population has decreased by 0.02% since the previous census.
A number of other Tennessee counties also boast relatively large populations for their state, though not able to match the density of Shelby County:
The smallest county in Tennessee is Pickett County , with a population of just 5,102. This total represents a increase of 0.0% since the last census count was performed.
Other small counties include:
Wilson County , with its sizeable population of 175,544, has shown the largest population growth, with an increase of 0.2% since the last census.
Knox County has also had relatively high population growth of 0.07% with 511,920 residents.
On the other hand, Lake County has had the largest decrease in population, with its 6,437 current residents totalling 0.1% less than the previous census.