Stillwater County MT Information


Stillwater County Subdivisions

Stillwater County MT Data & Demographics (As of July 1, 2018)


Total Population 9,188
Population in Households 9,076
Population in Familes 7,504
Population in Group Qrtrs 112
Population Density1 5
Diversity Index2 16


Median Household Income $56,837
Average Household Income $75,528
Per Capita Income $31,250


Total Housing Units 4,831 (100%)
Owner Occupied HU 3,060 (63.3%)
Renter Occupied HU 719 (14.9%)
Vacant Housing Units 1,052 (21.8%)
Median Home Value $219,455
Average Home Value $264,943


Total Households 3,779
Average Household Size 2.4
Family Households 2,604
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 0.09% -0.38%
Households -0.05% -0.48%
Families -0.24% -0.57%
Median Household Income   0.59%
Per Capita Income   1.57%


Stillwater County MT - Peer Comparisons by Rank and Percentile

The table below compares Stillwater County to the other 56 counties and county equivalents in Montana by rank and percentile using July 1, 2018 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 # 26 55th
Population Density # 17 71st
Diversity Index # 31 46th
Median Household Income # 5 93rd
Per Capita Income # 11 82nd

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