Last official estimated population of Archuleta County was 12,065 (year 2014)[1]. This was 0.004% of total US population and 0.2% of total Colorado state population. Area of Archuleta County is 1,355.5 mi² (=3510.7 km²), in this year population density was 8.90 p/mi². If population growth rate would be same as in period 2010-2014 (-0.04%/yr), Archuleta County population in 2026 would be 12,008 [0].
Historical population of Archuleta 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] +9.87 %/yr
[1900-1910] +4.55 %/yr
[1910-1920] +0.84 %/yr
[1920-1930] -1.13 %/yr
[1930-1940] +1.74 %/yr
[1940-1950] -2.25 %/yr
[1950-1960] -1.41 %/yr
[1960-1970] +0.39 %/yr
[1970-1980] +2.97 %/yr
[1980-1990] +3.85 %/yr
[1990-2000] +6.35 %/yr
[2000-2005] +3.05 %/yr
[2005-2010] +1 %/yr
[2010-2014] -0.04 %/yr
Looking for settlements in Archuleta County? Visit this page: Settlements in Archuleta County, CO
Population of Archuleta County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 286 | 310 | 596 |
| 5 to 9 | 332 | 290 | 622 |
| 10 to 14 | 332 | 312 | 644 |
| 15 to 19 | 336 | 292 | 628 |
| 20 to 24 | 266 | 269 | 535 |
| 25 to 29 | 267 | 269 | 536 |
| 30 to 34 | 342 | 291 | 633 |
| 35 to 39 | 303 | 310 | 613 |
| 40 to 44 | 298 | 278 | 576 |
| 45 to 49 | 330 | 362 | 692 |
| 50 to 54 | 463 | 479 | 942 |
| 55 to 59 | 522 | 583 | 1,105 |
| 60 to 64 | 643 | 671 | 1,314 |
| 65 to 69 | 614 | 570 | 1,184 |
| 70 to 74 | 376 | 318 | 694 |
| 75 to 79 | 196 | 207 | 403 |
| 80 to 84 | 142 | 160 | 302 |
| 85+ | 90 | 135 | 225 |
Archuleta 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 | 5831 | 5780 | 11,611 |
| WA | 5700 | 5645 | 11,345 |
| NH | 5004 | 4968 | 9,972 |
| NHWAC | 4830 | 4775 | 9,605 |
| NHWA | 4732 | 4683 | 9,415 |
| H | 1134 | 1138 | 2,272 |
| HWAC | 1001 | 1005 | 2,006 |
| HWA | 968 | 962 | 1,930 |
| IAC | 278 | 282 | 560 |
| IA | 201 | 203 | 404 |
| TOM | 141 | 149 | 290 |
| NHIAC | 148 | 140 | 288 |
| HIAC | 130 | 142 | 272 |
| HIA | 108 | 115 | 223 |
| NHTOM | 107 | 104 | 211 |
| AAC | 83 | 113 | 196 |
| NHIA | 93 | 88 | 181 |
| NHAAC | 64 | 100 | 164 |
| BAC | 77 | 63 | 140 |
| AA | 53 | 84 | 137 |
| NHAA | 35 | 74 | 109 |
| NHBAC | 59 | 44 | 103 |
| HTOM | 34 | 45 | 79 |
| BA | 38 | 19 | 57 |
| NHBA | 32 | 16 | 48 |
| HBAC | 18 | 19 | 37 |
| NAC | 14 | 20 | 34 |
| HAAC | 19 | 13 | 32 |
| NHNAC | 14 | 16 | 30 |
| HAA | 18 | 10 | 28 |
| NA | 5 | 6 | 11 |
| HBA | 6 | 3 | 9 |
| NHNA | 5 | 3 | 8 |
| HNAC | 0 | 4 | 4 |
| HNA | 0 | 3 | 3 |
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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
*Conejos Colorado Notes
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