Last official estimated population of Park County was 15,586 (year 2014)[1]. This was 0.005% of total US population and 1.5% of total Montana state population. Area of Park County is 2,813.3 mi² (=7286.5 km²), in this year population density was 5.54 p/mi². If population growth rate would be same as in period 2010-2014 (-0.08%/yr), Park County population in 2026 would be 15,437 [0].
Historical population of Park 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] +0.65 %/yr
[1900-1910] +3.87 %/yr
[1910-1920] +0.54 %/yr
[1920-1930] -0.37 %/yr
[1930-1940] +0.57 %/yr
[1940-1950] +0.37 %/yr
[1950-1960] +0.93 %/yr
[1960-1970] -1.61 %/yr
[1970-1980] +1.4 %/yr
[1980-1990] +1.21 %/yr
[1990-2000] +0.78 %/yr
[2000-2005] -0.08 %/yr
[2005-2010] +0.01 %/yr
[2010-2014] -0.08 %/yr
Looking for settlements in Park County? Visit this page: Settlements in Park County, MT
Population of Park County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 395 | 347 | 742 |
| 5 to 9 | 469 | 368 | 837 |
| 10 to 14 | 456 | 434 | 890 |
| 15 to 19 | 401 | 428 | 829 |
| 20 to 24 | 330 | 341 | 671 |
| 25 to 29 | 372 | 348 | 720 |
| 30 to 34 | 456 | 467 | 923 |
| 35 to 39 | 492 | 502 | 994 |
| 40 to 44 | 529 | 508 | 1,037 |
| 45 to 49 | 541 | 487 | 1,028 |
| 50 to 54 | 639 | 682 | 1,321 |
| 55 to 59 | 729 | 701 | 1,430 |
| 60 to 64 | 703 | 663 | 1,366 |
| 65 to 69 | 573 | 578 | 1,151 |
| 70 to 74 | 369 | 366 | 735 |
| 75 to 79 | 209 | 292 | 501 |
| 80 to 84 | 154 | 181 | 335 |
| 85+ | 155 | 215 | 370 |
Park 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 | 7818 | 7724 | 15,542 |
| NH | 7753 | 7683 | 15,436 |
| WA | 7677 | 7578 | 15,255 |
| NHWAC | 7612 | 7521 | 15,133 |
| NHWA | 7486 | 7393 | 14,879 |
| H | 219 | 225 | 444 |
| HWAC | 206 | 203 | 409 |
| IAC | 203 | 192 | 395 |
| HWA | 191 | 185 | 376 |
| NHIAC | 186 | 166 | 352 |
| TOM | 154 | 155 | 309 |
| NHTOM | 137 | 135 | 272 |
| IA | 96 | 89 | 185 |
| NHIA | 88 | 77 | 165 |
| AAC | 51 | 83 | 134 |
| NHAAC | 44 | 75 | 119 |
| BAC | 55 | 55 | 110 |
| NHBAC | 47 | 46 | 93 |
| AA | 18 | 51 | 69 |
| NHAA | 17 | 47 | 64 |
| BA | 25 | 26 | 51 |
| NHBA | 23 | 24 | 47 |
| HIAC | 17 | 26 | 43 |
| HTOM | 17 | 20 | 37 |
| NAC | 12 | 23 | 35 |
| NHNAC | 9 | 19 | 28 |
| HIA | 8 | 12 | 20 |
| HBAC | 8 | 9 | 17 |
| HAAC | 7 | 8 | 15 |
| NA | 2 | 9 | 11 |
| NHNA | 2 | 7 | 9 |
| HNAC | 3 | 4 | 7 |
| HAA | 1 | 4 | 5 |
| HBA | 2 | 2 | 4 |
| HNA | 0 | 2 | 2 |
• Gallatin County population
31.3 mi,
282°
• Park County
78.9 mi,
144°
• Jefferson County
88.1 mi,
303°
• Carbon County
74.3 mi,
100°
• Stillwater County
58 mi,
73°
• Madison County
67.4 mi,
264°
• Broadwater County
78 mi,
323°
• Sweet Grass County
39.3 mi,
46°
• Wheatland County
81.1 mi,
23°
• Meagher County
82.5 mi,
346°
[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
*Gallatin Montana Notes
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