Last official estimated population of Colfax County was 10,539 (year 2014)[1]. This was 0.003% of total US population and 0.6% of total Nebraska state population. Area of Colfax County is 416.5 mi² (=1078.8 km²), in this year population density was 25.30 p/mi². If population growth rate would be same as in period 2010-2014 (+0.06%/yr), Colfax County population in 2024 would be 10,599 [0].
Historical population of Colfax County for period 1870-2014 [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
[1870-1880] +16.55 %/yr
[1880-1890] +4.72 %/yr
[1890-1900] +0.7 %/yr
[1900-1910] +0.35 %/yr
[1910-1920] +0.01 %/yr
[1920-1930] -0.16 %/yr
[1930-1940] -0.73 %/yr
[1940-1950] -0.6 %/yr
[1950-1960] -0.42 %/yr
[1960-1970] -0.1 %/yr
[1970-1980] +0.41 %/yr
[1980-1990] -0.79 %/yr
[1990-2000] +1.33 %/yr
[2000-2005] -0.38 %/yr
[2005-2010] +0.54 %/yr
[2010-2014] +0.06 %/yr
Looking for settlements in Colfax County? Visit this page: Settlements in Colfax County, NE
Population of Colfax County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 421 | 443 | 864 |
| 5 to 9 | 479 | 492 | 971 |
| 10 to 14 | 433 | 404 | 837 |
| 15 to 19 | 353 | 323 | 676 |
| 20 to 24 | 355 | 296 | 651 |
| 25 to 29 | 357 | 277 | 634 |
| 30 to 34 | 367 | 337 | 704 |
| 35 to 39 | 311 | 298 | 609 |
| 40 to 44 | 328 | 280 | 608 |
| 45 to 49 | 340 | 281 | 621 |
| 50 to 54 | 388 | 338 | 726 |
| 55 to 59 | 349 | 331 | 680 |
| 60 to 64 | 292 | 254 | 546 |
| 65 to 69 | 193 | 198 | 391 |
| 70 to 74 | 151 | 131 | 282 |
| 75 to 79 | 122 | 125 | 247 |
| 80 to 84 | 89 | 136 | 225 |
| 85+ | 77 | 155 | 232 |
Colfax 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 | 4939 | 4756 | 9,695 |
| WA | 4886 | 4696 | 9,582 |
| NH | 3042 | 2938 | 5,980 |
| NHWAC | 2862 | 2856 | 5,718 |
| NHWA | 2836 | 2824 | 5,660 |
| H | 2363 | 2161 | 4,524 |
| HWAC | 2077 | 1900 | 3,977 |
| HWA | 2050 | 1872 | 3,922 |
| IAC | 215 | 189 | 404 |
| BAC | 214 | 140 | 354 |
| IA | 188 | 159 | 347 |
| HIAC | 184 | 160 | 344 |
| HIA | 167 | 140 | 307 |
| BA | 191 | 115 | 306 |
| NHBAC | 137 | 59 | 196 |
| NHBA | 124 | 41 | 165 |
| HBAC | 77 | 81 | 158 |
| HBA | 67 | 74 | 141 |
| TOM | 57 | 62 | 119 |
| AAC | 68 | 47 | 115 |
| AA | 58 | 39 | 97 |
| NHAAC | 38 | 25 | 63 |
| NHTOM | 29 | 33 | 62 |
| NHIAC | 31 | 29 | 60 |
| HTOM | 28 | 29 | 57 |
| NAC | 26 | 30 | 56 |
| NA | 25 | 28 | 53 |
| HAAC | 30 | 22 | 52 |
| HNAC | 23 | 27 | 50 |
| NHAA | 30 | 19 | 49 |
| HNA | 23 | 26 | 49 |
| HAA | 28 | 20 | 48 |
| NHIA | 21 | 19 | 40 |
| NHNAC | 3 | 3 | 6 |
| NHNA | 2 | 2 | 4 |
• Dodge County population
22.9 mi, 
89°
• Madison County
35.3 mi, 
310°
• Platte County
21.9 mi, 
270°
• Saunders County
33.6 mi, 
136°
• Wayne County
44 mi, 
357°
• Cuming County
28.2 mi, 
33°
• Butler County
24.2 mi, 
185°
• Burt County
43.3 mi, 
63°
• Stanton County
23.3 mi, 
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• Polk County
36.6 mi, 
223°
[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
*Platte Nebraska Notes
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