Last official estimated population of Gage County was 22,286 (year 2014)[1]. This was 0.007% of total US population and 1.2% of total Nebraska state population. Area of Gage County is 860.0 mi² (=2227.3 km²), in this year population density was 25.92 p/mi². If population growth rate would be same as in period 2010-2014 (-0.03%/yr), Gage County population in 2025 would be 22,217 [0].
Historical population of Gage 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] +23.08 %/yr
[1870-1880] +14.64 %/yr
[1880-1890] +10.69 %/yr
[1890-1900] -1.88 %/yr
[1900-1910] +0.09 %/yr
[1910-1920] -0.2 %/yr
[1920-1930] +0.17 %/yr
[1930-1940] -0.22 %/yr
[1940-1950] -0.53 %/yr
[1950-1960] -0.45 %/yr
[1960-1970] -0.42 %/yr
[1970-1980] -0.5 %/yr
[1980-1990] -0.7 %/yr
[1990-2000] +0.09 %/yr
[2000-2005] -0.11 %/yr
[2005-2010] -0.49 %/yr
[2010-2014] -0.03 %/yr
Looking for settlements in Gage County? Visit this page: Settlements in Gage County, NE
Population of Gage County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 651 | 585 | 1,236 |
| 5 to 9 | 708 | 662 | 1,370 |
| 10 to 14 | 685 | 651 | 1,336 |
| 15 to 19 | 682 | 609 | 1,291 |
| 20 to 24 | 589 | 559 | 1,148 |
| 25 to 29 | 522 | 514 | 1,036 |
| 30 to 34 | 559 | 581 | 1,140 |
| 35 to 39 | 592 | 589 | 1,181 |
| 40 to 44 | 594 | 586 | 1,180 |
| 45 to 49 | 688 | 696 | 1,384 |
| 50 to 54 | 874 | 853 | 1,727 |
| 55 to 59 | 849 | 873 | 1,722 |
| 60 to 64 | 770 | 731 | 1,501 |
| 65 to 69 | 588 | 587 | 1,175 |
| 70 to 74 | 444 | 524 | 968 |
| 75 to 79 | 372 | 452 | 824 |
| 80 to 84 | 286 | 388 | 674 |
| 85+ | 265 | 505 | 770 |
Gage 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 | 10499 | 10756 | 21,255 |
| NH | 10488 | 10713 | 21,201 |
| WA | 10359 | 10615 | 20,974 |
| NHWAC | 10297 | 10539 | 20,836 |
| NHWA | 10177 | 10412 | 20,589 |
| H | 230 | 232 | 462 |
| HWAC | 202 | 217 | 419 |
| HWA | 182 | 203 | 385 |
| IAC | 148 | 153 | 301 |
| TOM | 147 | 151 | 298 |
| NHTOM | 127 | 137 | 264 |
| NHIAC | 117 | 139 | 256 |
| BAC | 132 | 98 | 230 |
| NHBAC | 125 | 91 | 216 |
| AAC | 82 | 80 | 162 |
| IA | 76 | 73 | 149 |
| NHAAC | 71 | 71 | 142 |
| NHIA | 58 | 66 | 124 |
| BA | 83 | 37 | 120 |
| AA | 51 | 65 | 116 |
| NHBA | 79 | 36 | 115 |
| NHAA | 45 | 58 | 103 |
| HIAC | 31 | 14 | 45 |
| HTOM | 20 | 14 | 34 |
| HIA | 18 | 7 | 25 |
| HAAC | 11 | 9 | 20 |
| NAC | 8 | 12 | 20 |
| NHNAC | 8 | 12 | 20 |
| HBAC | 7 | 7 | 14 |
| HAA | 6 | 7 | 13 |
| NA | 2 | 4 | 6 |
| NHNA | 2 | 4 | 6 |
| HBA | 4 | 1 | 5 |
| HNAC | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Lancaster County population
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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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