Last official estimated population of Dakota County was 21,029 (year 2014)[1]. This was 0.007% of total US population and 1.1% of total Nebraska state population. Area of Dakota County is 267.4 mi² (=692.6 km²), in this year population density was 78.64 p/mi². If population growth rate would be same as in period 2010-2014 (+0.03%/yr), Dakota County population in 2026 would be 21,098 [0].
Historical population of Dakota 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] +9.56 %/yr
[1870-1880] +4.65 %/yr
[1880-1890] +5.3 %/yr
[1890-1900] +1.56 %/yr
[1900-1910] +0.43 %/yr
[1910-1920] +1.6 %/yr
[1920-1930] +2.14 %/yr
[1930-1940] +0.34 %/yr
[1940-1950] +0.56 %/yr
[1950-1960] +1.58 %/yr
[1960-1970] +0.77 %/yr
[1970-1980] +2.35 %/yr
[1980-1990] +0.1 %/yr
[1990-2000] +1.93 %/yr
[2000-2005] -0.07 %/yr
[2005-2010] +0.79 %/yr
[2010-2014] +0.03 %/yr
Looking for settlements in Dakota County? Visit this page: Settlements in Dakota County, NE
Population of Dakota County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 856 | 816 | 1,672 |
| 5 to 9 | 911 | 845 | 1,756 |
| 10 to 14 | 831 | 769 | 1,600 |
| 15 to 19 | 757 | 795 | 1,552 |
| 20 to 24 | 791 | 714 | 1,505 |
| 25 to 29 | 677 | 680 | 1,357 |
| 30 to 34 | 685 | 650 | 1,335 |
| 35 to 39 | 598 | 645 | 1,243 |
| 40 to 44 | 603 | 586 | 1,189 |
| 45 to 49 | 658 | 595 | 1,253 |
| 50 to 54 | 705 | 678 | 1,383 |
| 55 to 59 | 656 | 633 | 1,289 |
| 60 to 64 | 502 | 558 | 1,060 |
| 65 to 69 | 427 | 430 | 857 |
| 70 to 74 | 302 | 343 | 645 |
| 75 to 79 | 225 | 272 | 497 |
| 80 to 84 | 132 | 175 | 307 |
| 85+ | 109 | 241 | 350 |
Dakota 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 | 9178 | 9165 | 18,343 |
| WA | 9031 | 8991 | 18,022 |
| NH | 6347 | 6715 | 13,062 |
| NHWAC | 5359 | 5669 | 11,028 |
| NHWA | 5247 | 5543 | 10,790 |
| H | 4078 | 3710 | 7,788 |
| HWAC | 3819 | 3496 | 7,315 |
| HWA | 3784 | 3448 | 7,232 |
| BAC | 525 | 492 | 1,017 |
| IAC | 451 | 499 | 950 |
| NHBAC | 465 | 450 | 915 |
| BA | 471 | 435 | 906 |
| NHBA | 421 | 402 | 823 |
| IA | 380 | 410 | 790 |
| AAC | 377 | 412 | 789 |
| AA | 346 | 379 | 725 |
| NHAAC | 340 | 380 | 720 |
| NHAA | 311 | 353 | 664 |
| NHIAC | 270 | 317 | 587 |
| NHIA | 225 | 258 | 483 |
| HIAC | 181 | 182 | 363 |
| TOM | 154 | 183 | 337 |
| HIA | 155 | 152 | 307 |
| NHTOM | 117 | 135 | 252 |
| HBAC | 60 | 42 | 102 |
| NAC | 50 | 45 | 95 |
| HTOM | 37 | 48 | 85 |
| HBA | 50 | 33 | 83 |
| NA | 43 | 27 | 70 |
| HAAC | 37 | 32 | 69 |
| NHNAC | 32 | 37 | 69 |
| HAA | 35 | 26 | 61 |
| NHNA | 26 | 24 | 50 |
| HNAC | 18 | 8 | 26 |
| HNA | 17 | 3 | 20 |
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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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