Last official estimated population of Grant County was 17,887 (year 2014)[1]. This was 0.006% of total US population and 0.6% of total Arkansas state population. Area of Grant County is 632.9 mi² (=1639.3 km²), in this year population density was 28.26 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Grant County population in 2025 would be 17,981 [0].
Historical population of Grant County for period 1870-2014 [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

[1870-1880] +4.6 %/yr
[1880-1890] +2.33 %/yr
[1890-1900] -0.15 %/yr
[1900-1910] +2.08 %/yr
[1910-1920] +1.29 %/yr
[1920-1930] -0.85 %/yr
[1930-1940] +0.64 %/yr
[1940-1950] -1.48 %/yr
[1950-1960] -0.84 %/yr
[1960-1970] +1.59 %/yr
[1970-1980] +2.97 %/yr
[1980-1990] +0.7 %/yr
[1990-2000] +1.67 %/yr
[2000-2005] +0.94 %/yr
[2005-2010] +0.7 %/yr
[2010-2014] +0.05 %/yr
Looking for settlements in Grant County? Visit this page: Settlements in Grant County, AR
Population of Grant County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 529 | 498 | 1,027 |
| 5 to 9 | 676 | 560 | 1,236 |
| 10 to 14 | 606 | 618 | 1,224 |
| 15 to 19 | 609 | 558 | 1,167 |
| 20 to 24 | 517 | 494 | 1,011 |
| 25 to 29 | 547 | 544 | 1,091 |
| 30 to 34 | 579 | 561 | 1,140 |
| 35 to 39 | 537 | 552 | 1,089 |
| 40 to 44 | 622 | 611 | 1,233 |
| 45 to 49 | 594 | 648 | 1,242 |
| 50 to 54 | 708 | 699 | 1,407 |
| 55 to 59 | 617 | 619 | 1,236 |
| 60 to 64 | 561 | 551 | 1,112 |
| 65 to 69 | 480 | 496 | 976 |
| 70 to 74 | 356 | 448 | 804 |
| 75 to 79 | 252 | 285 | 537 |
| 80 to 84 | 139 | 199 | 338 |
| 85+ | 95 | 179 | 274 |
Grant 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 | 8767 | 8900 | 17,667 |
| WAC | 8668 | 8781 | 17,449 |
| WA | 8550 | 8653 | 17,203 |
| NHWAC | 8434 | 8569 | 17,003 |
| NHWA | 8343 | 8473 | 16,816 |
| BAC | 306 | 293 | 599 |
| NHBAC | 284 | 278 | 562 |
| BA | 264 | 248 | 512 |
| NHBA | 250 | 245 | 495 |
| H | 257 | 220 | 477 |
| HWAC | 234 | 212 | 446 |
| HWA | 207 | 180 | 387 |
| TOM | 126 | 133 | 259 |
| IAC | 123 | 113 | 236 |
| NHTOM | 99 | 101 | 200 |
| NHIAC | 104 | 94 | 198 |
| AAC | 51 | 64 | 115 |
| NHAAC | 44 | 59 | 103 |
| IA | 52 | 37 | 89 |
| NHIA | 49 | 35 | 84 |
| AA | 25 | 47 | 72 |
| NHAA | 25 | 45 | 70 |
| HTOM | 27 | 32 | 59 |
| HIAC | 19 | 19 | 38 |
| HBAC | 22 | 15 | 37 |
| NAC | 12 | 7 | 19 |
| HBA | 14 | 3 | 17 |
| HAAC | 7 | 5 | 12 |
| NHNAC | 6 | 4 | 10 |
| NA | 7 | 2 | 9 |
| HNAC | 6 | 3 | 9 |
| HNA | 6 | 1 | 7 |
| HIA | 3 | 2 | 5 |
| NHNA | 1 | 1 | 2 |
| HAA | 0 | 2 | 2 |
• Pulaski County population
34.1 mi,
10°
• Saline County
28.9 mi,
330°
• Garland County
46 mi,
296°
• Jefferson County
28.1 mi,
91°
• Lonoke County
44.3 mi,
42°
• Hot Spring County
29.8 mi,
273°
• Clark County
46 mi,
249°
• Lincoln County
45.8 mi,
119°
• Cleveland County
30.2 mi,
153°
• Dallas County
25.6 mi,
211°
[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
*Saline, Jefferson, Hot Spring Arkansas Notes
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