Last official estimated population of Oregon County was 10,922 (year 2014)[1]. This was 0.003% of total US population and 0.2% of total Missouri state population. Area of Oregon County is 791.5 mi² (=2050.1 km²), in this year population density was 13.80 p/mi². If population growth rate would be same as in period 2010-2014 (+0.09%/yr), Oregon County population in 2026 would be 11,046 [0].
Historical population of Oregon 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] +7.71 %/yr
[1860-1870] +0.89 %/yr
[1870-1880] +5.83 %/yr
[1880-1890] +6.1 %/yr
[1890-1900] +2.88 %/yr
[1900-1910] +0.54 %/yr
[1910-1920] -1.29 %/yr
[1920-1930] -0.53 %/yr
[1930-1940] +0.92 %/yr
[1940-1950] -1.11 %/yr
[1950-1960] -1.94 %/yr
[1960-1970] -0.7 %/yr
[1970-1980] +1.1 %/yr
[1980-1990] -0.78 %/yr
[1990-2000] +0.87 %/yr
[2000-2005] +0.35 %/yr
[2005-2010] +0.69 %/yr
[2010-2014] +0.09 %/yr
Looking for settlements in Oregon County? Visit this page: Settlements in Oregon County, MO
Population of Oregon County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 358 | 312 | 670 |
| 5 to 9 | 357 | 331 | 688 |
| 10 to 14 | 285 | 372 | 657 |
| 15 to 19 | 326 | 307 | 633 |
| 20 to 24 | 312 | 283 | 595 |
| 25 to 29 | 251 | 252 | 503 |
| 30 to 34 | 230 | 244 | 474 |
| 35 to 39 | 253 | 264 | 517 |
| 40 to 44 | 282 | 296 | 578 |
| 45 to 49 | 316 | 317 | 633 |
| 50 to 54 | 436 | 477 | 913 |
| 55 to 59 | 421 | 402 | 823 |
| 60 to 64 | 404 | 414 | 818 |
| 65 to 69 | 390 | 397 | 787 |
| 70 to 74 | 316 | 334 | 650 |
| 75 to 79 | 233 | 226 | 459 |
| 80 to 84 | 106 | 152 | 258 |
| 85+ | 89 | 166 | 255 |
Oregon 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 | 5299 | 5455 | 10,754 |
| WAC | 5251 | 5389 | 10,640 |
| NHWAC | 5193 | 5307 | 10,500 |
| WA | 5127 | 5283 | 10,410 |
| NHWA | 5072 | 5202 | 10,274 |
| IAC | 154 | 167 | 321 |
| NHIAC | 146 | 160 | 306 |
| TOM | 124 | 108 | 232 |
| NHTOM | 121 | 105 | 226 |
| IA | 67 | 92 | 159 |
| H | 66 | 91 | 157 |
| NHIA | 62 | 87 | 149 |
| HWAC | 58 | 82 | 140 |
| HWA | 55 | 81 | 136 |
| BAC | 60 | 47 | 107 |
| NHBAC | 59 | 45 | 104 |
| AAC | 21 | 41 | 62 |
| NHAAC | 21 | 40 | 61 |
| BA | 35 | 24 | 59 |
| NHBA | 34 | 23 | 57 |
| AA | 9 | 34 | 43 |
| NHAA | 9 | 34 | 43 |
| HIAC | 8 | 7 | 15 |
| NAC | 5 | 10 | 15 |
| NHNAC | 3 | 8 | 11 |
| HIA | 5 | 5 | 10 |
| NA | 3 | 5 | 8 |
| HTOM | 3 | 3 | 6 |
| NHNA | 1 | 4 | 5 |
| HNAC | 2 | 2 | 4 |
| HNA | 2 | 1 | 3 |
| HBAC | 1 | 2 | 3 |
| HBA | 1 | 1 | 2 |
| HAAC | 0 | 1 | 1 |
| HAA | 0 | 0 | 0 |
• Howell County population
27.6 mi, 
282°
• Randolph County
31.5 mi, 
138°
• Lawrence County
47.5 mi, 
159°
• Sharp County
35.6 mi, 
186°
• Ripley County
29.7 mi, 
94°
• Izard County
49.7 mi, 
214°
• Fulton County
31.2 mi, 
228°
• Shannon County
32.3 mi, 
1°
• Reynolds County
52.4 mi, 
27°
• Carter County
31 mi, 
54°
[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
*Ripley; Taney Missouri Notes
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