Last official estimated population of Gallatin County was 89,599 (year 2014)[1]. This was 0.028% of total US population and 8.7% of total Montana state population. Area of Gallatin County is 2,633.8 mi² (=6821.4 km²), in this year population density was 34.02 p/mi². If population growth rate would be same as in period 2010-2014 (+0.02%/yr), Gallatin County population in 2024 would be 89,814 [0].
Historical population of Gallatin County for period 1870-2014 [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
[1870-1880] +8.73 %/yr
[1880-1890] +5.54 %/yr
[1890-1900] +4.34 %/yr
[1900-1910] +3.95 %/yr
[1910-1920] +1.2 %/yr
[1920-1930] +0.16 %/yr
[1930-1940] +1.26 %/yr
[1940-1950] +1.83 %/yr
[1950-1960] +1.75 %/yr
[1960-1970] +2.24 %/yr
[1970-1980] +2.81 %/yr
[1980-1990] +1.65 %/yr
[1990-2000] +3 %/yr
[2000-2005] +3.43 %/yr
[2005-2010] +2.19 %/yr
[2010-2014] +0.02 %/yr
Looking for settlements in Gallatin County? Visit this page: Settlements in Gallatin County, MT
Population of Gallatin County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 2781 | 2899 | 5,680 |
5 to 9 | 2925 | 2880 | 5,805 |
10 to 14 | 2674 | 2719 | 5,393 |
15 to 19 | 3560 | 3312 | 6,872 |
20 to 24 | 6484 | 5358 | 11,842 |
25 to 29 | 4290 | 3706 | 7,996 |
30 to 34 | 4089 | 3694 | 7,783 |
35 to 39 | 3583 | 3093 | 6,676 |
40 to 44 | 3094 | 2809 | 5,903 |
45 to 49 | 2701 | 2503 | 5,204 |
50 to 54 | 2890 | 2916 | 5,806 |
55 to 59 | 2975 | 2972 | 5,947 |
60 to 64 | 2712 | 2811 | 5,523 |
65 to 69 | 2073 | 1902 | 3,975 |
70 to 74 | 1314 | 1307 | 2,621 |
75 to 79 | 834 | 869 | 1,703 |
80 to 84 | 498 | 643 | 1,141 |
85+ | 519 | 919 | 1,438 |
Gallatin 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 | 48560 | 45751 | 94,311 |
NH | 48485 | 45789 | 94,274 |
WA | 47654 | 44920 | 92,574 |
NHWAC | 47180 | 44342 | 91,522 |
NHWA | 46331 | 43578 | 89,909 |
H | 1511 | 1523 | 3,034 |
HWAC | 1380 | 1409 | 2,789 |
HWA | 1323 | 1342 | 2,665 |
AAC | 921 | 1117 | 2,038 |
NHAAC | 881 | 1084 | 1,965 |
IAC | 970 | 947 | 1,917 |
TOM | 945 | 858 | 1,803 |
NHIAC | 852 | 837 | 1,689 |
NHTOM | 879 | 790 | 1,669 |
AA | 578 | 806 | 1,384 |
NHAA | 555 | 791 | 1,346 |
IA | 507 | 513 | 1,020 |
NHIA | 436 | 446 | 882 |
BAC | 429 | 315 | 744 |
NHBAC | 399 | 289 | 688 |
BA | 256 | 167 | 423 |
NHBA | 241 | 154 | 395 |
HIAC | 118 | 110 | 228 |
NAC | 114 | 96 | 210 |
NHNAC | 96 | 73 | 169 |
HIA | 71 | 67 | 138 |
HTOM | 66 | 68 | 134 |
NA | 56 | 48 | 104 |
NHNA | 43 | 30 | 73 |
HAAC | 40 | 33 | 73 |
HBAC | 30 | 26 | 56 |
HNAC | 18 | 23 | 41 |
HAA | 23 | 15 | 38 |
HNA | 13 | 18 | 31 |
HBA | 15 | 13 | 28 |
• Silver Bow County population
76.8 mi, 289°
• Park County
31.3 mi, 102°
• Fremont County
91.2 mi, 189°
• Jefferson County
60.1 mi, 314°
• Beaverhead County
88.1 mi, 252°
• Stillwater County
86.7 mi, 83°
• Madison County
38.7 mi, 249°
• Broadwater County
58.3 mi, 344°
• Sweet Grass County
62.5 mi, 70°
• Meagher County
74.7 mi, 8°
[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
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