Last official estimated population of Nelson County was 43,604 (year 2014)[1]. This was 0.014% of total US population and 1% of total Kentucky state population. Area of Nelson County is 424.1 mi² (=1098.4 km²), in this year population density was 102.82 p/mi². If population growth rate would be same as in period 2010-2014 (+0.1%/yr), Nelson County population in 2026 would be 44,109 [0].
Historical population of Nelson County for period 1790-2014 [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
[1790-1800] -1.36 %/yr
[1800-1810] +3.62 %/yr
[1810-1820] +1.46 %/yr
[1820-1830] -0.86 %/yr
[1830-1840] -0.9 %/yr
[1840-1850] +0.81 %/yr
[1850-1860] +0.66 %/yr
[1860-1870] -0.65 %/yr
[1870-1880] +1.16 %/yr
[1880-1890] -0.12 %/yr
[1890-1900] +0.1 %/yr
[1900-1910] +0.15 %/yr
[1910-1920] -0.42 %/yr
[1920-1930] +0.25 %/yr
[1930-1940] +0.85 %/yr
[1940-1950] +0.81 %/yr
[1950-1960] +1.28 %/yr
[1960-1970] +0.58 %/yr
[1970-1980] +1.63 %/yr
[1980-1990] +0.75 %/yr
[1990-2000] +2.35 %/yr
[2000-2005] +1.6 %/yr
[2005-2010] +1.37 %/yr
[2010-2014] +0.1 %/yr
Looking for settlements in Nelson County? Visit this page: Settlements in Nelson County, KY
Population of Nelson County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1532 | 1461 | 2,993 |
| 5 to 9 | 1649 | 1427 | 3,076 |
| 10 to 14 | 1590 | 1521 | 3,111 |
| 15 to 19 | 1553 | 1434 | 2,987 |
| 20 to 24 | 1363 | 1423 | 2,786 |
| 25 to 29 | 1305 | 1385 | 2,690 |
| 30 to 34 | 1394 | 1450 | 2,844 |
| 35 to 39 | 1404 | 1420 | 2,824 |
| 40 to 44 | 1455 | 1489 | 2,944 |
| 45 to 49 | 1545 | 1597 | 3,142 |
| 50 to 54 | 1676 | 1748 | 3,424 |
| 55 to 59 | 1588 | 1605 | 3,193 |
| 60 to 64 | 1302 | 1447 | 2,749 |
| 65 to 69 | 1059 | 1139 | 2,198 |
| 70 to 74 | 689 | 837 | 1,526 |
| 75 to 79 | 453 | 570 | 1,023 |
| 80 to 84 | 289 | 380 | 669 |
| 85+ | 185 | 448 | 633 |
Nelson 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 | 21544 | 22342 | 43,886 |
| WAC | 20674 | 21378 | 42,052 |
| WA | 20343 | 21038 | 41,381 |
| NHWAC | 20226 | 20985 | 41,211 |
| NHWA | 19920 | 20662 | 40,582 |
| BAC | 1370 | 1431 | 2,801 |
| NHBAC | 1339 | 1398 | 2,737 |
| BA | 1155 | 1216 | 2,371 |
| NHBA | 1139 | 1192 | 2,331 |
| H | 487 | 439 | 926 |
| HWAC | 448 | 393 | 841 |
| HWA | 423 | 376 | 799 |
| TOM | 340 | 349 | 689 |
| NHTOM | 312 | 330 | 642 |
| AAC | 178 | 175 | 353 |
| NHAAC | 172 | 166 | 338 |
| IAC | 140 | 140 | 280 |
| AA | 133 | 127 | 260 |
| NHAA | 132 | 122 | 254 |
| NHIAC | 115 | 121 | 236 |
| IA | 46 | 42 | 88 |
| NHIA | 32 | 32 | 64 |
| HBAC | 31 | 33 | 64 |
| HTOM | 28 | 19 | 47 |
| NAC | 25 | 19 | 44 |
| HIAC | 25 | 19 | 44 |
| HBA | 16 | 24 | 40 |
| NHNAC | 17 | 13 | 30 |
| HIA | 14 | 10 | 24 |
| NA | 14 | 9 | 23 |
| HAAC | 6 | 9 | 15 |
| HNAC | 8 | 6 | 14 |
| NHNA | 9 | 4 | 13 |
| HNA | 5 | 5 | 10 |
| HAA | 1 | 5 | 6 |
• Jefferson County population
28.7 mi, 
338°
• Hardin County
28.2 mi, 
254°
• Bullitt County
17.3 mi, 
311°
• Taylor County
31.1 mi, 
165°
• Anderson County
29.6 mi, 
61°
• Mercer County
32 mi, 
88°
• Marion County
20.4 mi, 
148°
• Spencer County
17.3 mi, 
27°
• Larue County
21.9 mi, 
215°
• Washington County
16.2 mi, 
102°
[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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