Last official estimated population of Polk County was 16,823 (year 2014)[1]. This was 0.005% of total US population and 0.3% of total Tennessee state population. Area of Polk County is 442.3 mi² (=1145.6 km²), in this year population density was 38.03 p/mi². If population growth rate would be same as in period 2010-2014 (-0%/yr), Polk County population in 2026 would be 16,817 [0].
Historical population of Polk County for period 1840-2014 [1] , [2] , [3]:
Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.
Population • Density • Changes • Legends • Position
[1840-1850] +5.91 %/yr
[1850-1860] +3.25 %/yr
[1860-1870] -1.68 %/yr
[1870-1880] -0.14 %/yr
[1880-1890] +1.41 %/yr
[1890-1900] +3.11 %/yr
[1900-1910] +2.2 %/yr
[1910-1920] +0.09 %/yr
[1920-1930] +0.97 %/yr
[1930-1940] -0.14 %/yr
[1940-1950] -0.94 %/yr
[1950-1960] -1.45 %/yr
[1960-1970] -0.41 %/yr
[1970-1980] +1.54 %/yr
[1980-1990] +0.03 %/yr
[1990-2000] +1.63 %/yr
[2000-2005] +0.43 %/yr
[2005-2010] +0.53 %/yr
[2010-2014] -0 %/yr
Looking for settlements in Polk County? Visit this page: Settlements in Polk County, TN
Population of Polk County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 401 | 377 | 778 |
| 5 to 9 | 498 | 447 | 945 |
| 10 to 14 | 548 | 494 | 1,042 |
| 15 to 19 | 534 | 484 | 1,018 |
| 20 to 24 | 509 | 423 | 932 |
| 25 to 29 | 403 | 421 | 824 |
| 30 to 34 | 399 | 427 | 826 |
| 35 to 39 | 447 | 497 | 944 |
| 40 to 44 | 622 | 595 | 1,217 |
| 45 to 49 | 623 | 623 | 1,246 |
| 50 to 54 | 660 | 628 | 1,288 |
| 55 to 59 | 597 | 659 | 1,256 |
| 60 to 64 | 559 | 606 | 1,165 |
| 65 to 69 | 549 | 575 | 1,124 |
| 70 to 74 | 452 | 437 | 889 |
| 75 to 79 | 286 | 297 | 583 |
| 80 to 84 | 150 | 213 | 363 |
| 85+ | 97 | 193 | 290 |
Polk County resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.
| Race | Male | Female | Total |
| WAC | 8200 | 8258 | 16,458 |
| NH | 8189 | 8253 | 16,442 |
| WA | 8097 | 8138 | 16,235 |
| NHWAC | 8074 | 8138 | 16,212 |
| NHWA | 7978 | 8026 | 16,004 |
| H | 145 | 143 | 288 |
| HWAC | 126 | 120 | 246 |
| TOM | 110 | 126 | 236 |
| IAC | 106 | 129 | 235 |
| HWA | 119 | 112 | 231 |
| NHTOM | 101 | 118 | 219 |
| NHIAC | 94 | 117 | 211 |
| BAC | 104 | 84 | 188 |
| NHBAC | 97 | 75 | 172 |
| BA | 66 | 50 | 116 |
| NHBA | 63 | 45 | 108 |
| IA | 40 | 46 | 86 |
| NHIA | 33 | 38 | 71 |
| AAC | 27 | 41 | 68 |
| NHAAC | 22 | 37 | 59 |
| AA | 18 | 28 | 46 |
| NHAA | 14 | 24 | 38 |
| HIAC | 12 | 12 | 24 |
| NAC | 7 | 12 | 19 |
| HTOM | 9 | 8 | 17 |
| HBAC | 7 | 9 | 16 |
| HIA | 7 | 8 | 15 |
| NA | 3 | 8 | 11 |
| HNAC | 4 | 6 | 10 |
| HAAC | 5 | 4 | 9 |
| NHNAC | 3 | 6 | 9 |
| HNA | 3 | 6 | 9 |
| HAA | 4 | 4 | 8 |
| HBA | 3 | 5 | 8 |
| NHNA | 0 | 2 | 2 |
• Whitfield County population
32.2 mi, 
228°
• Bradley County
18.2 mi, 
279°
• McMinn County
22.2 mi, 
348°
• Monroe County
28.6 mi, 
35°
• Murray County
24.3 mi, 
207°
• Gilmer County
29.4 mi, 
170°
• Cherokee County
27.2 mi, 
86°
• Fannin County
21 mi, 
142°
• Union County
36.6 mi, 
121°
• Meigs County
31.5 mi, 
329°
[0] Calculated by population.us from last known population growth rate, not official data.
[1] County population - 2014, archived from the original, retrieved 02/23/2016
[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016
[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016
[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016
[4] County area, latitude longitude data, retrieved 02/23/2016
[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016
*McMinn Tennessee Notes
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