Last official estimated population of Cooper County was 17,589 (year 2014)[1]. This was 0.006% of total US population and 0.3% of total Missouri state population. Area of Cooper County is 569.2 mi² (=1474.2 km²), in this year population density was 30.90 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Cooper County population in 2026 would be 17,553 [0].
Historical population of Cooper County for period 1820-2014 [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
[1820-1830] -0.08 %/yr
[1830-1840] +4.27 %/yr
[1840-1850] +2.13 %/yr
[1850-1860] +2.97 %/yr
[1860-1870] +1.77 %/yr
[1870-1880] +0.43 %/yr
[1880-1890] +0.5 %/yr
[1890-1900] -0.08 %/yr
[1900-1910] -1.03 %/yr
[1910-1920] -0.51 %/yr
[1920-1930] +0.11 %/yr
[1930-1940] -0.77 %/yr
[1940-1950] -0.84 %/yr
[1950-1960] -0.72 %/yr
[1960-1970] -0.47 %/yr
[1970-1980] -0.06 %/yr
[1980-1990] +0.13 %/yr
[1990-2000] +1.17 %/yr
[2000-2005] +0.84 %/yr
[2005-2010] +0.25 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Cooper County? Visit this page: Settlements in Cooper County, MO
Population of Cooper County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 565 | 408 | 973 |
| 5 to 9 | 546 | 543 | 1,089 |
| 10 to 14 | 558 | 520 | 1,078 |
| 15 to 19 | 611 | 512 | 1,123 |
| 20 to 24 | 874 | 443 | 1,317 |
| 25 to 29 | 804 | 443 | 1,247 |
| 30 to 34 | 613 | 533 | 1,146 |
| 35 to 39 | 540 | 447 | 987 |
| 40 to 44 | 538 | 477 | 1,015 |
| 45 to 49 | 547 | 517 | 1,064 |
| 50 to 54 | 616 | 676 | 1,292 |
| 55 to 59 | 618 | 590 | 1,208 |
| 60 to 64 | 559 | 578 | 1,137 |
| 65 to 69 | 434 | 446 | 880 |
| 70 to 74 | 299 | 388 | 687 |
| 75 to 79 | 231 | 294 | 525 |
| 80 to 84 | 162 | 204 | 366 |
| 85+ | 154 | 297 | 451 |
Cooper 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 | 9125 | 8173 | 17,298 |
| WAC | 8221 | 7859 | 16,080 |
| NHWAC | 8101 | 7731 | 15,832 |
| WA | 8060 | 7695 | 15,755 |
| NHWA | 7952 | 7584 | 15,536 |
| BAC | 1038 | 445 | 1,483 |
| NHBAC | 1024 | 439 | 1,463 |
| BA | 949 | 352 | 1,301 |
| NHBA | 940 | 350 | 1,290 |
| TOM | 165 | 173 | 338 |
| NHTOM | 151 | 155 | 306 |
| H | 144 | 143 | 287 |
| HWAC | 120 | 128 | 248 |
| HWA | 108 | 111 | 219 |
| IAC | 100 | 96 | 196 |
| NHIAC | 82 | 80 | 162 |
| AAC | 59 | 82 | 141 |
| NHAAC | 57 | 76 | 133 |
| AA | 32 | 55 | 87 |
| NHAA | 32 | 54 | 86 |
| IA | 49 | 35 | 84 |
| NHIA | 40 | 28 | 68 |
| NAC | 22 | 13 | 35 |
| HIAC | 18 | 16 | 34 |
| HTOM | 14 | 18 | 32 |
| NHNAC | 17 | 6 | 23 |
| NA | 14 | 6 | 20 |
| HBAC | 14 | 6 | 20 |
| HIA | 9 | 7 | 16 |
| NHNA | 10 | 2 | 12 |
| HNAC | 5 | 7 | 12 |
| HBA | 9 | 2 | 11 |
| HNA | 4 | 4 | 8 |
| HAAC | 2 | 6 | 8 |
| HAA | 0 | 1 | 1 |
• Boone County population
28.8 mi, 
69°
• Cole County
37.2 mi, 
129°
• Pettis County
26.7 mi, 
252°
• Randolph County
44.5 mi, 
22°
• Saline County
29.1 mi, 
313°
• Morgan County
29.5 mi, 
186°
• Benton County
45.5 mi, 
214°
• Moniteau County
19.2 mi, 
139°
• Howard County
21.5 mi, 16°
• Chariton County
47.2 mi, 
350°
[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
*St. Louis Missouri Notes
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