Last official estimated population of Newton County was 14,257 (year 2014)[1]. This was 0.004% of total US population and 0.2% of total Indiana state population. Area of Newton County is 403.4 mi² (=1044.9 km²), in this year population density was 35.34 p/mi². If population growth rate would be same as in period 2010-2014 (+0.02%/yr), Newton County population in 2026 would be 14,296 [0].
Historical population of Newton County for period 1860-2014 [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

[1860-1870] +9.46 %/yr
[1870-1880] +3.43 %/yr
[1880-1890] +0.75 %/yr
[1890-1900] +1.73 %/yr
[1900-1910] +0.05 %/yr
[1910-1920] -0.35 %/yr
[1920-1930] -0.3 %/yr
[1930-1940] +0.91 %/yr
[1940-1950] +0.21 %/yr
[1950-1960] +0.44 %/yr
[1960-1970] +0.09 %/yr
[1970-1980] +2.49 %/yr
[1980-1990] -0.91 %/yr
[1990-2000] +0.71 %/yr
[2000-2005] -0.07 %/yr
[2005-2010] -0.33 %/yr
[2010-2014] +0.02 %/yr
Looking for settlements in Newton County? Visit this page: Settlements in Newton County, IN
Population of Newton County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 388 | 340 | 728 |
| 5 to 9 | 423 | 432 | 855 |
| 10 to 14 | 508 | 436 | 944 |
| 15 to 19 | 487 | 432 | 919 |
| 20 to 24 | 427 | 360 | 787 |
| 25 to 29 | 391 | 370 | 761 |
| 30 to 34 | 411 | 369 | 780 |
| 35 to 39 | 418 | 405 | 823 |
| 40 to 44 | 462 | 386 | 848 |
| 45 to 49 | 474 | 432 | 906 |
| 50 to 54 | 588 | 576 | 1,164 |
| 55 to 59 | 594 | 530 | 1,124 |
| 60 to 64 | 510 | 499 | 1,009 |
| 65 to 69 | 369 | 384 | 753 |
| 70 to 74 | 352 | 357 | 709 |
| 75 to 79 | 198 | 231 | 429 |
| 80 to 84 | 135 | 158 | 293 |
| 85+ | 89 | 235 | 324 |
Newton 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 | 7109 | 6826 | 13,935 |
| WA | 7030 | 6760 | 13,790 |
| NH | 6774 | 6548 | 13,322 |
| NHWAC | 6688 | 6465 | 13,153 |
| NHWA | 6637 | 6412 | 13,049 |
| H | 450 | 384 | 834 |
| HWAC | 421 | 361 | 782 |
| HWA | 393 | 348 | 741 |
| BAC | 89 | 66 | 155 |
| TOM | 81 | 69 | 150 |
| IAC | 83 | 64 | 147 |
| NHBAC | 70 | 49 | 119 |
| NHTOM | 52 | 54 | 106 |
| NHIAC | 48 | 53 | 101 |
| BA | 60 | 38 | 98 |
| NHBA | 49 | 29 | 78 |
| IA | 35 | 26 | 61 |
| AAC | 23 | 37 | 60 |
| NHAAC | 19 | 34 | 53 |
| HIAC | 35 | 11 | 46 |
| NHIA | 23 | 22 | 45 |
| HTOM | 29 | 15 | 44 |
| AA | 12 | 31 | 43 |
| NHAA | 11 | 31 | 42 |
| HBAC | 19 | 17 | 36 |
| HBA | 11 | 9 | 20 |
| NAC | 8 | 12 | 20 |
| HIA | 12 | 4 | 16 |
| NA | 6 | 8 | 14 |
| HNAC | 5 | 9 | 14 |
| HNA | 4 | 8 | 12 |
| HAAC | 4 | 3 | 7 |
| NHNAC | 3 | 3 | 6 |
| NHNA | 2 | 0 | 2 |
| HAA | 1 | 0 | 1 |
• Will County population
45 mi,
318°
• Lake County
35.3 mi,
2°
• Porter County
41.6 mi,
24°
• Kankakee County
26.9 mi,
297°
• Jasper County
15.3 mi,
75°
• Iroquois County
26.9 mi,
236°
• White County
31.7 mi,
117°
• Pulaski County
37.4 mi,
81°
• Benton County
25.4 mi,
169°
• Warren County
42.1 mi,
178°
[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
*Jasper Indiana Notes
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