Last official estimated population of McDonald County was 23,065 (year 2014)[1]. This was 0.007% of total US population and 0.4% of total Missouri state population. Area of McDonald County is 539.7 mi² (=1397.8 km²), in this year population density was 42.74 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), McDonald County population in 2026 would be 23,011 [0].
Historical population of McDonald 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] +6.09 %/yr
[1860-1870] +2.61 %/yr
[1870-1880] +4.11 %/yr
[1880-1890] +3.74 %/yr
[1890-1900] +1.87 %/yr
[1900-1910] -0.03 %/yr
[1910-1920] +0.82 %/yr
[1920-1930] -0.53 %/yr
[1930-1940] +1.23 %/yr
[1940-1950] -1.07 %/yr
[1950-1960] -1.8 %/yr
[1960-1970] +0.46 %/yr
[1970-1980] +1.9 %/yr
[1980-1990] +1.28 %/yr
[1990-2000] +2.5 %/yr
[2000-2005] +0.94 %/yr
[2005-2010] +0.32 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in McDonald County? Visit this page: Settlements in McDonald County, MO
Population of McDonald County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 748 | 753 | 1,501 |
| 5 to 9 | 878 | 773 | 1,651 |
| 10 to 14 | 884 | 841 | 1,725 |
| 15 to 19 | 893 | 781 | 1,674 |
| 20 to 24 | 739 | 636 | 1,375 |
| 25 to 29 | 673 | 654 | 1,327 |
| 30 to 34 | 672 | 629 | 1,301 |
| 35 to 39 | 667 | 689 | 1,356 |
| 40 to 44 | 762 | 709 | 1,471 |
| 45 to 49 | 796 | 801 | 1,597 |
| 50 to 54 | 884 | 839 | 1,723 |
| 55 to 59 | 792 | 798 | 1,590 |
| 60 to 64 | 663 | 655 | 1,318 |
| 65 to 69 | 578 | 544 | 1,122 |
| 70 to 74 | 398 | 472 | 870 |
| 75 to 79 | 278 | 289 | 567 |
| 80 to 84 | 176 | 188 | 364 |
| 85+ | 102 | 166 | 268 |
McDonald 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 | 10664 | 10387 | 21,051 |
| WA | 10250 | 10058 | 20,308 |
| NH | 10164 | 9998 | 20,162 |
| NHWAC | 9388 | 9260 | 18,648 |
| NHWA | 9051 | 8960 | 18,011 |
| H | 1419 | 1219 | 2,638 |
| HWAC | 1276 | 1127 | 2,403 |
| HWA | 1199 | 1098 | 2,297 |
| IAC | 692 | 576 | 1,268 |
| NHIAC | 549 | 507 | 1,056 |
| TOM | 424 | 337 | 761 |
| IA | 372 | 331 | 703 |
| NHTOM | 347 | 307 | 654 |
| NHIA | 286 | 281 | 567 |
| BAC | 271 | 240 | 511 |
| NHBAC | 225 | 212 | 437 |
| AAC | 206 | 187 | 393 |
| NAC | 200 | 176 | 376 |
| BA | 196 | 170 | 366 |
| NHAAC | 184 | 175 | 359 |
| NA | 178 | 167 | 345 |
| NHNAC | 178 | 162 | 340 |
| NHBA | 167 | 153 | 320 |
| AA | 163 | 154 | 317 |
| NHNA | 161 | 153 | 314 |
| NHAA | 152 | 144 | 296 |
| HIAC | 143 | 69 | 212 |
| HIA | 86 | 50 | 136 |
| HTOM | 77 | 30 | 107 |
| HBAC | 46 | 28 | 74 |
| HBA | 29 | 17 | 46 |
| HNAC | 22 | 14 | 36 |
| HAAC | 22 | 12 | 34 |
| HNA | 17 | 14 | 31 |
| HAA | 11 | 10 | 21 |
• Benton County population
20.8 mi,
166°
• Washington County
46.1 mi,
171°
• Jasper County
39.7 mi,
0°
• Newton County
19.2 mi,
1°
• Delaware County
30.5 mi,
237°
• Lawrence County
43.5 mi,
40°
• Barry County
28.6 mi,
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• Ottawa County
29.1 mi,
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• Cherokee County
46.4 mi,
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• Craig County
48.4 mi,
281°
[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
*Newton Missouri Notes
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