Last official estimated population of Caribou County was 6,976 (year 2014)[1]. This was 0.002% of total US population and 0.4% of total Idaho state population. Area of Caribou County is 1,798.4 mi² (=4658 km²), in this year population density was 3.88 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Caribou County population in 2026 would be 7,015 [0].
Historical population of Caribou County for period 1920-2014 [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

[1920-1930] -0.32 %/yr
[1930-1940] +0.74 %/yr
[1940-1950] +9.34 %/yr
[1950-1960] +0.7 %/yr
[1960-1970] +0.9 %/yr
[1970-1980] +2.9 %/yr
[1980-1990] -2.2 %/yr
[1990-2000] +0.47 %/yr
[2000-2005] -0.93 %/yr
[2005-2010] 0 %/yr
[2010-2014] +0.05 %/yr
Looking for settlements in Caribou County? Visit this page: Settlements in Caribou County, ID
Population of Caribou County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 265 | 242 | 507 |
| 5 to 9 | 258 | 295 | 553 |
| 10 to 14 | 309 | 272 | 581 |
| 15 to 19 | 253 | 224 | 477 |
| 20 to 24 | 196 | 144 | 340 |
| 25 to 29 | 153 | 175 | 328 |
| 30 to 34 | 196 | 224 | 420 |
| 35 to 39 | 249 | 189 | 438 |
| 40 to 44 | 180 | 176 | 356 |
| 45 to 49 | 165 | 191 | 356 |
| 50 to 54 | 210 | 199 | 409 |
| 55 to 59 | 262 | 235 | 497 |
| 60 to 64 | 213 | 214 | 427 |
| 65 to 69 | 164 | 169 | 333 |
| 70 to 74 | 155 | 158 | 313 |
| 75 to 79 | 85 | 118 | 203 |
| 80 to 84 | 68 | 85 | 153 |
| 85+ | 54 | 92 | 146 |
Caribou 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 | 3379 | 3342 | 6,721 |
| WA | 3342 | 3297 | 6,639 |
| NH | 3242 | 3233 | 6,475 |
| NHWAC | 3199 | 3185 | 6,384 |
| NHWA | 3164 | 3143 | 6,307 |
| H | 193 | 169 | 362 |
| HWAC | 180 | 157 | 337 |
| HWA | 178 | 154 | 332 |
| IAC | 47 | 48 | 95 |
| TOM | 40 | 45 | 85 |
| NHTOM | 38 | 42 | 80 |
| NHIAC | 37 | 37 | 74 |
| AAC | 26 | 33 | 59 |
| NHAAC | 22 | 31 | 53 |
| IA | 22 | 21 | 43 |
| AA | 16 | 25 | 41 |
| NHAA | 12 | 24 | 36 |
| BAC | 16 | 19 | 35 |
| NHBAC | 15 | 18 | 33 |
| NHIA | 14 | 11 | 25 |
| HIAC | 10 | 11 | 21 |
| NAC | 11 | 7 | 18 |
| HIA | 8 | 10 | 18 |
| NHNAC | 11 | 6 | 17 |
| BA | 8 | 9 | 17 |
| NHBA | 7 | 9 | 16 |
| NA | 7 | 5 | 12 |
| NHNA | 7 | 4 | 11 |
| HAAC | 4 | 2 | 6 |
| HAA | 4 | 1 | 5 |
| HTOM | 2 | 3 | 5 |
| HBAC | 1 | 1 | 2 |
| HBA | 1 | 0 | 1 |
| HNAC | 0 | 1 | 1 |
| HNA | 0 | 1 | 1 |
• Bonneville County population
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44.6 mi,
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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
*Bannock Idaho Notes
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