Last official estimated population of Blaine County was 9,903 (year 2014)[1]. This was 0.003% of total US population and 0.3% of total Oklahoma state population. Area of Blaine County is 938.8 mi² (=2431.5 km²), in this year population density was 10.55 p/mi². If population growth rate would be same as in period 2010-2014 (-4.57%/yr), Blaine County population in 2026 would be 5,646 [0].
Historical population of Blaine County for period 1880-2014 [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

[1880-1890] +INF %/yr
[1890-1900] +4.92 %/yr
[1900-1910] +0.42 %/yr
[1910-1920] -1.23 %/yr
[1920-1930] +2.57 %/yr
[1930-1940] -0.98 %/yr
[1940-1950] -2.07 %/yr
[1950-1960] -2.18 %/yr
[1960-1970] -0.24 %/yr
[1970-1980] +1.32 %/yr
[1980-1990] -1.57 %/yr
[1990-2000] +0.42 %/yr
[2000-2005] +0.49 %/yr
[2005-2010] -0.53 %/yr
[2010-2014] -4.57 %/yr
Looking for settlements in Blaine County? Visit this page: Settlements in Blaine County, OK
Population of Blaine County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 459 | 351 | 810 |
| 5 to 9 | 398 | 362 | 760 |
| 10 to 14 | 325 | 336 | 661 |
| 15 to 19 | 324 | 292 | 616 |
| 20 to 24 | 288 | 300 | 588 |
| 25 to 29 | 250 | 243 | 493 |
| 30 to 34 | 261 | 283 | 544 |
| 35 to 39 | 254 | 249 | 503 |
| 40 to 44 | 242 | 269 | 511 |
| 45 to 49 | 295 | 254 | 549 |
| 50 to 54 | 364 | 349 | 713 |
| 55 to 59 | 365 | 385 | 750 |
| 60 to 64 | 335 | 322 | 657 |
| 65 to 69 | 244 | 264 | 508 |
| 70 to 74 | 219 | 221 | 440 |
| 75 to 79 | 144 | 181 | 325 |
| 80 to 84 | 98 | 141 | 239 |
| 85+ | 73 | 177 | 250 |
Blaine 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 | 4484 | 4526 | 9,010 |
| WAC | 4216 | 4230 | 8,446 |
| WA | 4004 | 4042 | 8,046 |
| NHWAC | 3856 | 3856 | 7,712 |
| NHWA | 3667 | 3693 | 7,360 |
| IAC | 656 | 677 | 1,333 |
| NHIAC | 569 | 611 | 1,180 |
| IA | 503 | 520 | 1,023 |
| H | 454 | 453 | 907 |
| NHIA | 429 | 472 | 901 |
| HWAC | 360 | 374 | 734 |
| HWA | 337 | 349 | 686 |
| BAC | 272 | 246 | 518 |
| NHBAC | 242 | 221 | 463 |
| TOM | 230 | 226 | 456 |
| NHTOM | 206 | 198 | 404 |
| BA | 184 | 165 | 349 |
| NHBA | 166 | 149 | 315 |
| HIAC | 87 | 66 | 153 |
| HIA | 74 | 48 | 122 |
| AAC | 35 | 46 | 81 |
| NHAAC | 34 | 34 | 68 |
| HBAC | 30 | 25 | 55 |
| HTOM | 24 | 28 | 52 |
| AA | 14 | 23 | 37 |
| HBA | 18 | 16 | 34 |
| NHAA | 13 | 14 | 27 |
| NAC | 7 | 12 | 19 |
| NHNAC | 6 | 8 | 14 |
| HAAC | 1 | 12 | 13 |
| HAA | 1 | 9 | 10 |
| NA | 3 | 3 | 6 |
| HNAC | 1 | 4 | 5 |
| NHNA | 3 | 0 | 3 |
| HNA | 0 | 3 | 3 |
• Canadian County population
34.2 mi,
132°
• Garfield County
49.8 mi,
45°
• Logan County
54.8 mi,
87°
• Caddo County
49.1 mi,
176°
• Custer County
35.7 mi,
243°
• Kingfisher County
28.1 mi,
79°
• Washita County
51.5 mi,
217°
• Major County
30.7 mi,
348°
• Alfalfa County
59.2 mi,
5°
• Dewey County
33.5 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
*Cheyenne and Arapaho Reservation Oklahoma Notes
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