Last official estimated population of Otoe County was 15,758 (year 2014)[1]. This was 0.005% of total US population and 0.8% of total Nebraska state population. Area of Otoe County is 619.0 mi² (=1603.3 km²), in this year population density was 25.46 p/mi². If population growth rate would be same as in period 2010-2014 (+0.03%/yr), Otoe County population in 2026 would be 15,812 [0].
Historical population of Otoe County for period 1860-2014 [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

[1860-1870] +11.36 %/yr
[1870-1880] +2.45 %/yr
[1880-1890] +4.91 %/yr
[1890-1900] -1.3 %/yr
[1900-1910] -1.42 %/yr
[1910-1920] +0.09 %/yr
[1920-1930] +0.21 %/yr
[1930-1940] -0.47 %/yr
[1940-1950] -1.07 %/yr
[1950-1960] -0.33 %/yr
[1960-1970] -0.58 %/yr
[1970-1980] -0.26 %/yr
[1980-1990] -0.63 %/yr
[1990-2000] +0.78 %/yr
[2000-2005] +0.26 %/yr
[2005-2010] +0.17 %/yr
[2010-2014] +0.03 %/yr
Looking for settlements in Otoe County? Visit this page: Settlements in Otoe County, NE
Population of Otoe County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 492 | 471 | 963 |
| 5 to 9 | 556 | 486 | 1,042 |
| 10 to 14 | 506 | 527 | 1,033 |
| 15 to 19 | 511 | 490 | 1,001 |
| 20 to 24 | 435 | 369 | 804 |
| 25 to 29 | 411 | 399 | 810 |
| 30 to 34 | 415 | 429 | 844 |
| 35 to 39 | 406 | 432 | 838 |
| 40 to 44 | 492 | 463 | 955 |
| 45 to 49 | 472 | 459 | 931 |
| 50 to 54 | 630 | 597 | 1,227 |
| 55 to 59 | 597 | 618 | 1,215 |
| 60 to 64 | 495 | 496 | 991 |
| 65 to 69 | 426 | 449 | 875 |
| 70 to 74 | 323 | 358 | 681 |
| 75 to 79 | 238 | 272 | 510 |
| 80 to 84 | 169 | 265 | 434 |
| 85+ | 205 | 438 | 643 |
Otoe 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 |
| WAC | 7615 | 7871 | 15,486 |
| WA | 7510 | 7767 | 15,277 |
| NH | 7220 | 7507 | 14,727 |
| NHWAC | 7084 | 7382 | 14,466 |
| NHWA | 6995 | 7294 | 14,289 |
| H | 559 | 511 | 1,070 |
| HWAC | 531 | 489 | 1,020 |
| HWA | 515 | 473 | 988 |
| TOM | 109 | 108 | 217 |
| NHTOM | 93 | 92 | 185 |
| BAC | 105 | 70 | 175 |
| IAC | 85 | 90 | 175 |
| NHBAC | 93 | 61 | 154 |
| AAC | 66 | 83 | 149 |
| NHAAC | 59 | 79 | 138 |
| NHIAC | 63 | 68 | 131 |
| BA | 65 | 34 | 99 |
| AA | 40 | 56 | 96 |
| NHAA | 36 | 55 | 91 |
| NHBA | 57 | 30 | 87 |
| IA | 39 | 43 | 82 |
| NHIA | 27 | 28 | 55 |
| HIAC | 22 | 22 | 44 |
| NAC | 20 | 16 | 36 |
| HTOM | 16 | 16 | 32 |
| NHNAC | 15 | 13 | 28 |
| HIA | 12 | 15 | 27 |
| NA | 16 | 10 | 26 |
| HBAC | 12 | 9 | 21 |
| NHNA | 12 | 8 | 20 |
| HBA | 8 | 4 | 12 |
| HAAC | 7 | 4 | 11 |
| HNAC | 5 | 3 | 8 |
| HNA | 4 | 2 | 6 |
| HAA | 4 | 1 | 5 |
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[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
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