Last official estimated population of Hart County was 18,218 (year 2014)[1]. This was 0.006% of total US population and 0.4% of total Kentucky state population. Area of Hart County is 417.9 mi² (=1082.2 km²), in this year population density was 43.60 p/mi². If population growth rate would be same as in period 2010-2014 (+0.03%/yr), Hart County population in 2025 would be 18,270 [0].
Historical population of Hart County for period 1820-2014 [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
[1820-1830] +2.18 %/yr
[1830-1840] +3.08 %/yr
[1840-1850] +2.61 %/yr
[1850-1860] +1.3 %/yr
[1860-1870] +2.84 %/yr
[1870-1880] +2.27 %/yr
[1880-1890] -0.41 %/yr
[1890-1900] +1.13 %/yr
[1900-1910] -0.12 %/yr
[1910-1920] +0.2 %/yr
[1920-1930] -1.36 %/yr
[1930-1940] +0.64 %/yr
[1940-1950] -1.17 %/yr
[1950-1960] -0.81 %/yr
[1960-1970] -0.1 %/yr
[1970-1980] +0.97 %/yr
[1980-1990] -0.34 %/yr
[1990-2000] +1.6 %/yr
[2000-2005] +0.66 %/yr
[2005-2010] +0.18 %/yr
[2010-2014] +0.03 %/yr
Looking for settlements in Hart County? Visit this page: Settlements in Hart County, KY
Population of Hart County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 572 | 569 | 1,141 |
| 5 to 9 | 639 | 622 | 1,261 |
| 10 to 14 | 666 | 671 | 1,337 |
| 15 to 19 | 630 | 587 | 1,217 |
| 20 to 24 | 594 | 557 | 1,151 |
| 25 to 29 | 519 | 457 | 976 |
| 30 to 34 | 500 | 532 | 1,032 |
| 35 to 39 | 517 | 502 | 1,019 |
| 40 to 44 | 564 | 554 | 1,118 |
| 45 to 49 | 640 | 661 | 1,301 |
| 50 to 54 | 745 | 766 | 1,511 |
| 55 to 59 | 699 | 659 | 1,358 |
| 60 to 64 | 567 | 588 | 1,155 |
| 65 to 69 | 464 | 544 | 1,008 |
| 70 to 74 | 389 | 403 | 792 |
| 75 to 79 | 258 | 285 | 543 |
| 80 to 84 | 137 | 255 | 392 |
| 85+ | 92 | 193 | 285 |
Hart 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 | 9015 | 9265 | 18,280 |
| WAC | 8665 | 8938 | 17,603 |
| WA | 8556 | 8796 | 17,352 |
| NHWAC | 8503 | 8805 | 17,308 |
| NHWA | 8402 | 8669 | 17,071 |
| BAC | 543 | 499 | 1,042 |
| NHBAC | 535 | 495 | 1,030 |
| BA | 479 | 406 | 885 |
| NHBA | 475 | 404 | 879 |
| H | 177 | 140 | 317 |
| HWAC | 162 | 133 | 295 |
| HWA | 154 | 127 | 281 |
| TOM | 115 | 145 | 260 |
| NHTOM | 107 | 139 | 246 |
| IAC | 64 | 67 | 131 |
| NHIAC | 56 | 64 | 120 |
| AAC | 28 | 45 | 73 |
| NHAAC | 27 | 41 | 68 |
| AA | 17 | 36 | 53 |
| NHAA | 17 | 33 | 50 |
| IA | 17 | 18 | 35 |
| NHIA | 14 | 18 | 32 |
| NAC | 11 | 4 | 15 |
| HTOM | 8 | 6 | 14 |
| HNAC | 10 | 2 | 12 |
| NA | 8 | 4 | 12 |
| HBAC | 8 | 4 | 12 |
| HIAC | 8 | 3 | 11 |
| HNA | 8 | 2 | 10 |
| HBA | 4 | 2 | 6 |
| HAAC | 1 | 4 | 5 |
| HIA | 3 | 0 | 3 |
| NHNAC | 1 | 2 | 3 |
| HAA | 0 | 3 | 3 |
| NHNA | 0 | 2 | 2 |
• Hardin County population
26.6 mi, 
350°
• Barren County
24.5 mi, 
185°
• Grayson County
27.3 mi, 
291°
• Taylor County
30.5 mi, 
83°
• Marion County
37.2 mi, 
64°
• Adair County
36 mi, 
113°
• Larue County
18.7 mi, 
32°
• Edmonson County
19.6 mi, 
251°
• Green County
17.8 mi, 
100°
• Metcalfe County
26.1 mi, 
148°
[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
See note 31 Kentucky Notes
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