Last official estimated population of Denver County was 603,365 (year 2014)[1]. This was 0.189% of total US population and 11.1% of total Colorado state population. Area of Denver County is 155.0 mi² (=401.4 km²), in this year population density was 3,893.51 p/mi². If population growth rate would be same as in period 2010-2014 (+0.13%/yr), Denver County population in 2026 would be 613,089 [0].
Historical population of Denver County for period 1890-2014 [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

[1890-1900] NAN %/yr
[1900-1910] +INF %/yr
[1910-1920] +1.86 %/yr
[1920-1930] +1.16 %/yr
[1930-1940] +1.14 %/yr
[1940-1950] +2.58 %/yr
[1950-1960] +1.74 %/yr
[1960-1970] +0.41 %/yr
[1970-1980] -0.44 %/yr
[1980-1990] -0.52 %/yr
[1990-2000] +1.71 %/yr
[2000-2005] -0.08 %/yr
[2005-2010] +1.7 %/yr
[2010-2014] +0.13 %/yr
Looking for settlements in Denver County? Visit this page: Settlements in Denver County, CO
Population of Denver County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 23175 | 22111 | 45,286 |
| 5 to 9 | 20630 | 19745 | 40,375 |
| 10 to 14 | 17688 | 17375 | 35,063 |
| 15 to 19 | 15307 | 15862 | 31,169 |
| 20 to 24 | 21569 | 22651 | 44,220 |
| 25 to 29 | 37543 | 37253 | 74,796 |
| 30 to 34 | 36798 | 34498 | 71,296 |
| 35 to 39 | 28496 | 26448 | 54,944 |
| 40 to 44 | 25639 | 22228 | 47,867 |
| 45 to 49 | 20938 | 18494 | 39,432 |
| 50 to 54 | 19197 | 18435 | 37,632 |
| 55 to 59 | 17882 | 18451 | 36,333 |
| 60 to 64 | 16137 | 17135 | 33,272 |
| 65 to 69 | 11922 | 13521 | 25,443 |
| 70 to 74 | 7238 | 9058 | 16,296 |
| 75 to 79 | 4826 | 6649 | 11,475 |
| 80 to 84 | 3509 | 5149 | 8,658 |
| 85+ | 3425 | 6880 | 10,305 |
Denver 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 | 278239 | 275719 | 553,958 |
| WA | 269522 | 266331 | 535,853 |
| NH | 228136 | 231351 | 459,487 |
| NHWAC | 183291 | 184055 | 367,346 |
| NHWA | 177267 | 177465 | 354,732 |
| H | 103783 | 100592 | 204,375 |
| HWAC | 94948 | 91664 | 186,612 |
| HWA | 92255 | 88866 | 181,121 |
| BAC | 38236 | 38759 | 76,995 |
| NHBAC | 34089 | 34423 | 68,512 |
| BA | 33665 | 33909 | 67,574 |
| NHBA | 30790 | 30844 | 61,634 |
| AAC | 14908 | 17337 | 32,245 |
| NHAAC | 13587 | 15944 | 29,531 |
| AA | 11667 | 13886 | 25,553 |
| NHAA | 11005 | 13193 | 24,198 |
| IAC | 10538 | 11184 | 21,722 |
| TOM | 10006 | 10736 | 20,742 |
| NHTOM | 6921 | 7565 | 14,486 |
| IA | 6434 | 6633 | 13,067 |
| HIAC | 6505 | 6558 | 13,063 |
| HIA | 4679 | 4648 | 9,327 |
| NHIAC | 4033 | 4626 | 8,659 |
| HBAC | 4147 | 4336 | 8,483 |
| HTOM | 3085 | 3171 | 6,256 |
| HBA | 2875 | 3065 | 5,940 |
| NHIA | 1755 | 1985 | 3,740 |
| HAAC | 1321 | 1393 | 2,714 |
| NAC | 1137 | 999 | 2,136 |
| NHNAC | 766 | 694 | 1,460 |
| HAA | 662 | 693 | 1,355 |
| NA | 625 | 448 | 1,073 |
| NHNA | 398 | 299 | 697 |
| HNAC | 371 | 305 | 676 |
| HNA | 227 | 149 | 376 |
• Arapahoe County population
30.3 mi,
105°
• Jefferson County
23.1 mi,
236°
• Adams County
30.2 mi,
75°
• Boulder County
35.8 mi,
310°
• Douglas County
30.2 mi,
184°
• Weld County
60.4 mi,
25°
• Broomfield County
16 mi,
325°
• Elbert County
51.2 mi,
127°
• Clear Creek County
42.3 mi,
263°
• Gilpin County
35.1 mi,
281°
[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
*Arapahoe Colorado Notes
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