Boulder, MT Profile: Facts, Map & Data


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Boulder, Montana - Basic Facts

The City of Boulder is an incorporated place (Class Code P1) located in Jefferson County at latitude 46.2357 and longitude -112.1205. Jefferson County is in the Mountain time zone (GMT -7). The elevation is 4,908 feet.

The formal official name is the City of Boulder, but most people and references simply refer to it as Boulder, Montana.

The P1 Census Class Code for Boulder indicates a populated place that is also an incorporated place with the same name and the same census code. The Incorporated Place has a Functional Status Code "A" which identifies an active government providing primary general-purpose functions.

The formal boundaries for the City of Boulder (see map below) encompass a land area of 1.14 sq. miles and a water area of 0 sq. miles.

Alternate Unofficial Names for Boulder: Boulder Valley.

City of Boulder, MT Boundary Map


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Boundary Maps: Boulder Division | Jefferson County | Montana Counties

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Boulder, MT Data & Demographics (As of July 1, 2014)


Total Population 1,201
Population in Households 1,089
Population in Familes 827
Population in Group Qrtrs 112
Population Density1 1,060
Diversity Index2 23


Total Households 529
Average Household Size 2.06
Family Households 311
Average Family Size 3


Total Housing Units 588 (100%)
Owner Occupied HU 369 (62.8%)
Renter Occupied HU 160 (27.2%)
Vacant Housing Units 59 (10.0%)
Median Home Value $175,000
Average Home Value $221,070


Median Household Income $41,403
Average Household Income $52,342
Per Capita Income $21,995
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 0.36% 0.33%
Households 0.68% 0.6%
Families 1.01% 0.51%
Median Household Income   4.06%
Per Capita Income   2.15%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Boulder, MT - Peer Comparisons by Rank and Percentile

The table below compares Boulder to the other 364 incorporated cities, towns and CDPs in Montana by rank and percentile using July 1, 2014 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 # 78 79th
Population Density1 # 70 81st
Diversity Index2 # 72 80th
Median Household Income # 199 46th
Per Capita Income # 250 32nd

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