Last official estimated population of Ottawa County was 31,863 (year 2014)[1]. This was 0.01% of total US population and 0.8% of total Oklahoma state population. Area of Ottawa County is 484.6 mi² (=1255.2 km²), in this year population density was 65.75 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Ottawa County population in 2024 would be 31,901 [0].
Historical population of Ottawa 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] NAN %/yr
[1890-1900] +INF %/yr
[1900-1910] +2.05 %/yr
[1910-1920] +10.09 %/yr
[1920-1930] -0.64 %/yr
[1930-1940] -0.72 %/yr
[1940-1950] -1.06 %/yr
[1950-1960] -1.29 %/yr
[1960-1970] +0.52 %/yr
[1970-1980] +0.99 %/yr
[1980-1990] -0.73 %/yr
[1990-2000] +0.82 %/yr
[2000-2005] -0.31 %/yr
[2005-2010] -0.5 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Ottawa County? Visit this page: Settlements in Ottawa County, OK
Population of Ottawa County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1129 | 1101 | 2,230 |
| 5 to 9 | 1141 | 1081 | 2,222 |
| 10 to 14 | 1138 | 1021 | 2,159 |
| 15 to 19 | 1244 | 1136 | 2,380 |
| 20 to 24 | 1183 | 1073 | 2,256 |
| 25 to 29 | 838 | 933 | 1,771 |
| 30 to 34 | 884 | 920 | 1,804 |
| 35 to 39 | 879 | 896 | 1,775 |
| 40 to 44 | 960 | 916 | 1,876 |
| 45 to 49 | 882 | 965 | 1,847 |
| 50 to 54 | 1031 | 1098 | 2,129 |
| 55 to 59 | 979 | 1015 | 1,994 |
| 60 to 64 | 881 | 986 | 1,867 |
| 65 to 69 | 875 | 987 | 1,862 |
| 70 to 74 | 678 | 780 | 1,458 |
| 75 to 79 | 464 | 582 | 1,046 |
| 80 to 84 | 318 | 431 | 749 |
| 85+ | 224 | 456 | 680 |
Ottawa 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 | 14888 | 15526 | 30,414 |
| WAC | 12064 | 12729 | 24,793 |
| NHWAC | 11401 | 12072 | 23,473 |
| WA | 10890 | 11499 | 22,389 |
| NHWA | 10286 | 10892 | 21,178 |
| IAC | 4174 | 4312 | 8,486 |
| NHIAC | 3990 | 4122 | 8,112 |
| IA | 3100 | 3173 | 6,273 |
| NHIA | 2966 | 3022 | 5,988 |
| TOM | 1213 | 1269 | 2,482 |
| NHTOM | 1147 | 1217 | 2,364 |
| H | 840 | 851 | 1,691 |
| HWAC | 663 | 657 | 1,320 |
| HWA | 604 | 607 | 1,211 |
| BAC | 358 | 255 | 613 |
| NHBAC | 317 | 221 | 538 |
| BA | 233 | 151 | 384 |
| NAC | 197 | 187 | 384 |
| HIAC | 184 | 190 | 374 |
| NHNAC | 186 | 173 | 359 |
| NA | 179 | 175 | 354 |
| AAC | 168 | 179 | 347 |
| NHBA | 208 | 125 | 333 |
| NHNA | 171 | 161 | 332 |
| NHAAC | 159 | 170 | 329 |
| HIA | 134 | 151 | 285 |
| AA | 113 | 110 | 223 |
| NHAA | 110 | 109 | 219 |
| HTOM | 66 | 52 | 118 |
| HBAC | 41 | 34 | 75 |
| HBA | 25 | 26 | 51 |
| HNAC | 11 | 14 | 25 |
| HNA | 8 | 14 | 22 |
| HAAC | 9 | 9 | 18 |
| HAA | 3 | 1 | 4 |
• Benton County population
45.9 mi, 
138°
• Jasper County
36.2 mi, 
45°
• Newton County
26.3 mi, 
79°
• Delaware County
30.6 mi, 
180°
• Mayes County
43.9 mi, 
213°
• McDonald County
29.1 mi, 
119°
• Cherokee County
23.2 mi, 
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• Labette County
36.7 mi, 
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• Craig County
22.6 mi, 
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• Nowata County
45 mi, 
265°
[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
See note 10 Oklahoma Notes
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