Last official estimated population of Powell County was 7,017 (year 2014)[1]. This was 0.002% of total US population and 0.7% of total Montana state population. Area of Powell County is 2,332.3 mi² (=6040.7 km²), in this year population density was 3.01 p/mi². If population growth rate would be same as in period 2010-2014 (-0.04%/yr), Powell County population in 2026 would be 6,987 [0].
Historical population of Powell County for period 1910-2014 [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
[1910-1920] +1.58 %/yr
[1920-1930] -1.07 %/yr
[1930-1940] -0.08 %/yr
[1940-1950] +0.24 %/yr
[1950-1960] +1.06 %/yr
[1960-1970] -0.5 %/yr
[1970-1980] +0.44 %/yr
[1980-1990] -0.5 %/yr
[1990-2000] +0.82 %/yr
[2000-2005] -0.53 %/yr
[2005-2010] +0.09 %/yr
[2010-2014] -0.04 %/yr
Looking for settlements in Powell County? Visit this page: Settlements in Powell County, MT
Population of Powell County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 160 | 128 | 288 |
| 5 to 9 | 158 | 135 | 293 |
| 10 to 14 | 132 | 146 | 278 |
| 15 to 19 | 213 | 146 | 359 |
| 20 to 24 | 316 | 110 | 426 |
| 25 to 29 | 333 | 101 | 434 |
| 30 to 34 | 313 | 142 | 455 |
| 35 to 39 | 307 | 111 | 418 |
| 40 to 44 | 304 | 143 | 447 |
| 45 to 49 | 381 | 154 | 535 |
| 50 to 54 | 381 | 220 | 601 |
| 55 to 59 | 306 | 229 | 535 |
| 60 to 64 | 316 | 243 | 559 |
| 65 to 69 | 240 | 185 | 425 |
| 70 to 74 | 192 | 142 | 334 |
| 75 to 79 | 110 | 133 | 243 |
| 80 to 84 | 59 | 72 | 131 |
| 85+ | 54 | 94 | 148 |
Powell 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 |
| NH | 4172 | 2576 | 6,748 |
| WAC | 3904 | 2564 | 6,468 |
| WA | 3860 | 2520 | 6,380 |
| NHWAC | 3810 | 2513 | 6,323 |
| NHWA | 3772 | 2472 | 6,244 |
| IAC | 315 | 64 | 379 |
| NHIAC | 303 | 59 | 362 |
| IA | 286 | 35 | 321 |
| NHIA | 279 | 33 | 312 |
| H | 103 | 58 | 161 |
| HWAC | 94 | 51 | 145 |
| HWA | 88 | 48 | 136 |
| BAC | 74 | 19 | 93 |
| TOM | 47 | 45 | 92 |
| NHBAC | 72 | 17 | 89 |
| NHTOM | 40 | 42 | 82 |
| BA | 65 | 13 | 78 |
| NHBA | 64 | 11 | 75 |
| AAC | 24 | 33 | 57 |
| NHAAC | 21 | 30 | 51 |
| AA | 14 | 21 | 35 |
| NHAA | 14 | 18 | 32 |
| HIAC | 12 | 5 | 17 |
| HTOM | 7 | 3 | 10 |
| HIA | 7 | 2 | 9 |
| NAC | 7 | 1 | 8 |
| NHNAC | 7 | 1 | 8 |
| HAAC | 3 | 3 | 6 |
| HBAC | 2 | 2 | 4 |
| NHNA | 3 | 0 | 3 |
| NA | 3 | 0 | 3 |
| HBA | 1 | 2 | 3 |
| HAA | 0 | 3 | 3 |
| HNAC | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Missoula County population
47.1 mi, 
285°
• Lewis and Clark County
32.2 mi, 
53°
• Ravalli County
77.4 mi, 
226°
• Silver Bow County
66.8 mi, 
168°
• Lake County
77.2 mi, 
315°
• Jefferson County
64.8 mi, 
140°
• Deer Lodge County
52.8 mi, 
190°
• Teton County
73.9 mi, 
24°
• Broadwater County
76.8 mi, 
117°
• Granite County
38.9 mi, 
217°
[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
*Deer Lodge; Lewis and Clark Montana Notes
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