Last official estimated population of Butler County was 42,809 (year 2014)[1]. This was 0.013% of total US population and 0.7% of total Missouri state population. Area of Butler County is 699.0 mi² (=1810.4 km²), in this year population density was 61.24 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Butler County population in 2026 would be 42,854 [0].
Historical population of Butler 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] +5.99 %/yr
[1860-1870] +4.05 %/yr
[1870-1880] +3.41 %/yr
[1880-1890] +5.39 %/yr
[1890-1900] +5.13 %/yr
[1900-1910] +2.09 %/yr
[1910-1920] +1.57 %/yr
[1920-1930] -0.17 %/yr
[1930-1940] +3.76 %/yr
[1940-1950] +0.96 %/yr
[1950-1960] -0.84 %/yr
[1960-1970] -0.33 %/yr
[1970-1980] +1.18 %/yr
[1980-1990] +0.28 %/yr
[1990-2000] +0.53 %/yr
[2000-2005] +0.55 %/yr
[2005-2010] +0.38 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Butler County? Visit this page: Settlements in Butler County, MO
Population of Butler County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1530 | 1291 | 2,821 |
| 5 to 9 | 1451 | 1392 | 2,843 |
| 10 to 14 | 1468 | 1366 | 2,834 |
| 15 to 19 | 1337 | 1223 | 2,560 |
| 20 to 24 | 1312 | 1240 | 2,552 |
| 25 to 29 | 1266 | 1312 | 2,578 |
| 30 to 34 | 1249 | 1355 | 2,604 |
| 35 to 39 | 1200 | 1257 | 2,457 |
| 40 to 44 | 1268 | 1310 | 2,578 |
| 45 to 49 | 1269 | 1341 | 2,610 |
| 50 to 54 | 1499 | 1566 | 3,065 |
| 55 to 59 | 1459 | 1583 | 3,042 |
| 60 to 64 | 1317 | 1501 | 2,818 |
| 65 to 69 | 1091 | 1234 | 2,325 |
| 70 to 74 | 871 | 1002 | 1,873 |
| 75 to 79 | 637 | 835 | 1,472 |
| 80 to 84 | 462 | 614 | 1,076 |
| 85+ | 314 | 550 | 864 |
Butler 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 | 20611 | 21630 | 42,241 |
| WAC | 19508 | 20402 | 39,910 |
| NHWAC | 19179 | 20109 | 39,288 |
| WA | 19032 | 19940 | 38,972 |
| NHWA | 18720 | 19668 | 38,388 |
| BAC | 1402 | 1437 | 2,839 |
| NHBAC | 1363 | 1402 | 2,765 |
| BA | 1168 | 1209 | 2,377 |
| NHBA | 1139 | 1181 | 2,320 |
| TOM | 489 | 485 | 974 |
| NHTOM | 470 | 463 | 933 |
| H | 389 | 342 | 731 |
| IAC | 354 | 355 | 709 |
| NHIAC | 317 | 330 | 647 |
| HWAC | 329 | 293 | 622 |
| HWA | 312 | 272 | 584 |
| AAC | 212 | 249 | 461 |
| NHAAC | 210 | 240 | 450 |
| AA | 155 | 187 | 342 |
| NHAA | 153 | 183 | 336 |
| IA | 147 | 144 | 291 |
| NHIA | 120 | 128 | 248 |
| HBAC | 39 | 35 | 74 |
| HIAC | 37 | 25 | 62 |
| HBA | 29 | 28 | 57 |
| NAC | 23 | 27 | 50 |
| NHNAC | 22 | 23 | 45 |
| HIA | 27 | 16 | 43 |
| HTOM | 19 | 22 | 41 |
| NHNA | 9 | 7 | 16 |
| NA | 9 | 7 | 16 |
| HAAC | 2 | 9 | 11 |
| HAA | 2 | 4 | 6 |
| HNAC | 1 | 4 | 5 |
| HNA | 0 | 0 | 0 |
• Greene County population
42.1 mi,
192°
• Dunklin County
43.2 mi,
153°
• Stoddard County
26.9 mi,
69°
• New Madrid County
42.2 mi,
101°
• Randolph County
43.3 mi,
233°
• Clay County
24.1 mi,
182°
• Ripley County
26.1 mi,
259°
• Wayne County
27.6 mi,
354°
• Bollinger County
46.6 mi,
26°
• Carter County
33.9 mi,
297°
[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
*Wayne Missouri Notes
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