Last official estimated population of Polk County was 45,443 (year 2014)[1]. This was 0.014% of total US population and 0.2% of total Texas state population. Area of Polk County is 1,109.7 mi² (=2874 km²), in this year population density was 40.95 p/mi². If population growth rate would be same as in period 2010-2014 (+0.02%/yr), Polk County population in 2026 would be 45,533 [0].
Historical population of Polk County for period 1850-2014 [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

[1850-1860] +13.46 %/yr
[1860-1870] +0.48 %/yr
[1870-1880] -1.9 %/yr
[1880-1890] +3.69 %/yr
[1890-1900] +3.41 %/yr
[1900-1910] +1.91 %/yr
[1910-1920] -0.39 %/yr
[1920-1930] +0.45 %/yr
[1930-1940] +1.63 %/yr
[1940-1950] -2.39 %/yr
[1950-1960] -1.54 %/yr
[1960-1970] +0.42 %/yr
[1970-1980] +5.38 %/yr
[1980-1990] +2.32 %/yr
[1990-2000] +2.98 %/yr
[2000-2005] +2.02 %/yr
[2005-2010] -0.03 %/yr
[2010-2014] +0.02 %/yr
Looking for settlements in Polk County? Visit this page: Settlements in Polk County, TX
Population of Polk County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1312 | 1264 | 2,576 |
| 5 to 9 | 1401 | 1262 | 2,663 |
| 10 to 14 | 1331 | 1260 | 2,591 |
| 15 to 19 | 1350 | 1217 | 2,567 |
| 20 to 24 | 1622 | 1153 | 2,775 |
| 25 to 29 | 1539 | 1081 | 2,620 |
| 30 to 34 | 1652 | 1062 | 2,714 |
| 35 to 39 | 1548 | 1036 | 2,584 |
| 40 to 44 | 1594 | 1158 | 2,752 |
| 45 to 49 | 1660 | 1223 | 2,883 |
| 50 to 54 | 1689 | 1568 | 3,257 |
| 55 to 59 | 1743 | 1735 | 3,478 |
| 60 to 64 | 1713 | 1731 | 3,444 |
| 65 to 69 | 1716 | 1746 | 3,462 |
| 70 to 74 | 1293 | 1173 | 2,466 |
| 75 to 79 | 754 | 771 | 1,525 |
| 80 to 84 | 473 | 507 | 980 |
| 85+ | 305 | 437 | 742 |
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 |
| NH | 20721 | 18721 | 39,442 |
| WAC | 20711 | 18682 | 39,393 |
| WA | 20399 | 18373 | 38,772 |
| NHWAC | 17030 | 16192 | 33,222 |
| NHWA | 16785 | 15934 | 32,719 |
| H | 3974 | 2663 | 6,637 |
| HWAC | 3681 | 2490 | 6,171 |
| HWA | 3614 | 2439 | 6,053 |
| BAC | 3428 | 2116 | 5,544 |
| NHBAC | 3271 | 2025 | 5,296 |
| BA | 3278 | 1983 | 5,261 |
| NHBA | 3147 | 1910 | 5,057 |
| IAC | 677 | 647 | 1,324 |
| NHIAC | 503 | 539 | 1,042 |
| IA | 524 | 490 | 1,014 |
| NHIA | 394 | 415 | 809 |
| TOM | 336 | 329 | 665 |
| NHTOM | 257 | 275 | 532 |
| AAC | 187 | 242 | 429 |
| NHAAC | 164 | 227 | 391 |
| AA | 142 | 191 | 333 |
| NHAA | 132 | 182 | 314 |
| HIAC | 174 | 108 | 282 |
| HBAC | 157 | 91 | 248 |
| HIA | 130 | 75 | 205 |
| HBA | 131 | 73 | 204 |
| HTOM | 79 | 54 | 133 |
| NAC | 34 | 33 | 67 |
| HAAC | 23 | 15 | 38 |
| HNAC | 21 | 14 | 35 |
| NA | 16 | 18 | 34 |
| NHNAC | 13 | 19 | 32 |
| HNA | 10 | 13 | 23 |
| HAA | 10 | 9 | 19 |
| NHNA | 6 | 5 | 11 |
• Montgomery County population
51.5 mi,
229°
• Angelina County
35 mi,
22°
• Liberty County
43.3 mi,
180°
• Walker County
43.6 mi,
266°
• Hardin County
41.1 mi,
139°
• Jasper County
48.4 mi,
92°
• San Jacinto County
24.2 mi,
233°
• Houston County
50.8 mi,
317°
• Tyler County
27.4 mi,
92°
• Trinity County
28.5 mi,
319°
[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
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