Last official estimated population of Teton County was 10,154 (year 2014)[1]. This was 0.003% of total US population and 0.6% of total Idaho state population. Area of Teton County is 450.6 mi² (=1166.9 km²), in this year population density was 22.54 p/mi². If population growth rate would be same as in period 2010-2014 (-0.04%/yr), Teton County population in 2024 would be 10,114 [0].
Historical population of Teton 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] -0.93 %/yr
[1930-1940] +0.08 %/yr
[1940-1950] -1.16 %/yr
[1950-1960] -1.92 %/yr
[1960-1970] -1.15 %/yr
[1970-1980] +2.11 %/yr
[1980-1990] +1.73 %/yr
[1990-2000] +5.73 %/yr
[2000-2005] +5.4 %/yr
[2005-2010] +5.41 %/yr
[2010-2014] -0.04 %/yr
Looking for settlements in Teton County? Visit this page: Settlements in Teton County, ID
Population of Teton County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 366 | 445 | 811 |
| 5 to 9 | 426 | 429 | 855 |
| 10 to 14 | 416 | 366 | 782 |
| 15 to 19 | 331 | 302 | 633 |
| 20 to 24 | 268 | 196 | 464 |
| 25 to 29 | 299 | 250 | 549 |
| 30 to 34 | 397 | 420 | 817 |
| 35 to 39 | 520 | 452 | 972 |
| 40 to 44 | 477 | 434 | 911 |
| 45 to 49 | 400 | 364 | 764 |
| 50 to 54 | 371 | 311 | 682 |
| 55 to 59 | 338 | 307 | 645 |
| 60 to 64 | 299 | 272 | 571 |
| 65 to 69 | 200 | 187 | 387 |
| 70 to 74 | 111 | 93 | 204 |
| 75 to 79 | 64 | 55 | 119 |
| 80 to 84 | 47 | 52 | 99 |
| 85+ | 26 | 50 | 76 |
Teton 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 | 5272 | 4876 | 10,148 |
| WA | 5213 | 4817 | 10,030 |
| NH | 4389 | 4122 | 8,511 |
| NHWAC | 4339 | 4049 | 8,388 |
| NHWA | 4300 | 4016 | 8,316 |
| H | 967 | 863 | 1,830 |
| HWAC | 933 | 827 | 1,760 |
| HWA | 913 | 801 | 1,714 |
| IAC | 74 | 70 | 144 |
| TOM | 63 | 60 | 123 |
| AAC | 30 | 50 | 80 |
| NHTOM | 43 | 34 | 77 |
| IA | 36 | 39 | 75 |
| NHIAC | 38 | 36 | 74 |
| BAC | 34 | 37 | 71 |
| NHAAC | 26 | 45 | 71 |
| HIAC | 36 | 34 | 70 |
| AA | 18 | 36 | 54 |
| NHAA | 18 | 35 | 53 |
| HTOM | 20 | 26 | 46 |
| HIA | 24 | 19 | 43 |
| BA | 18 | 23 | 41 |
| NHBAC | 21 | 18 | 39 |
| HBAC | 13 | 19 | 32 |
| NHIA | 12 | 20 | 32 |
| NAC | 9 | 13 | 22 |
| HBA | 9 | 13 | 22 |
| NHBA | 9 | 10 | 19 |
| NA | 8 | 10 | 18 |
| NHNAC | 8 | 9 | 17 |
| NHNA | 7 | 7 | 14 |
| HAAC | 4 | 5 | 9 |
| HNAC | 1 | 4 | 5 |
| HNA | 1 | 3 | 4 |
| HAA | 0 | 1 | 1 |
• Bonneville County population
32.6 mi, 
219°
• Bannock County
89.8 mi, 
214°
• Bingham County
70.4 mi, 
237°
• Madison County
22.3 mi, 
274°
• Jefferson County
55.3 mi, 272°
• Teton County
43.9 mi, 
63°
• Fremont County
34.4 mi, 
336°
• Sublette County
94.6 mi, 
136°
• Caribou County
69.4 mi, 
193°
• Clark County
67.5 mi, 
302°
[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
*Fremont Idaho Notes
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