Big Sky, MT Profile: Facts, Map & Data


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Big Sky, Montana - Basic Facts

The Big Sky Census Designated Place had a population of 2,655 as of July 1, 2017. Big Sky ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Montana. See peer rankings below.

The primary coordinate point for Big Sky is located at latitude 45.2564 and longitude -111.332 in Gallatin County. The formal boundaries for the Big Sky Census Designated Place (see map below) encompass a land area of 119.99 sq. miles and a water area of 0.24 sq. miles. Gallatin County is in the Mountain time zone (GMT -7). The elevation is 7,218 feet.

While the primary coordinates for Big Sky Census Designated Place are located in Gallatin County, it should be noted that the formal boundaries for this community also extend into and Madison County.

The Big Sky Census Designated Place (GNIS ID: 2407845) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Montana is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Big Sky Census Designated Place is located within Big Sky Division of Gallatin County.

Beneath the boundary map are tables with Big Sky population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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Big Sky Census Designated Place, MT Boundary Map

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Boundary Maps: Big Sky Division | Gallatin County | Montana Counties

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Big Sky, MT Data & Demographics (As of July 1, 2017)


Total Population 2,655
Daytime Population: Workers 3,536
Daytime Population: Residents 905
Total Daytime Population (TDP) 4,441
Ratio TDP/Total Population1 1.67
Population in Households 2,610
Population in Familes 1,670
Population in Group Qrtrs 45
Population Density2 22
Diversity Index3 17


Median Household Income $65,675
Average Household Income $82,817
Per Capita Income $37,497


Total Housing Units 3,821 (100%)
Owner Occupied HU 711 (18.6%)
Renter Occupied HU 460 (12.0%)
Vacant Housing Units 2,650 (69.4%)
Median Home Value $459,740
Average Home Value $533,908


Total Households 1,171
Average Household Size 2.23
Family Households 606
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.95% 2.18%
Households 1.94% 2.19%
Families 2.63% 1.84%
Median Household Income   3.1%
Per Capita Income   3.35%

Big Sky, MT - Peer Comparisons by Rank and Percentile

The table below compares Big Sky to the other 364 incorporated cities, towns and CDPs in Montana by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 41 89th
Population Density # 317 13th
Diversity Index # 162 56th
Median Household Income # 18 95th
Per Capita Income # 15 96th

Additional comparisons and rankings can be made with a VERY EASY TO USE Montana Census Data Comparison Tool.

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