Stillwater County MT Information


Stillwater County Subdivisions

Stillwater County MT Data & Demographics (As of July 1, 2017)


Total Population 9,516
Daytime Population: Workers 4,189
Daytime Population: Residents 4,979
Total Daytime Population (TDP) 9,168
Ratio TDP/Total Population1 0.96
Population in Households 9,404
Population in Familes 7,803
Population in Group Qrtrs 112
Population Density2 5
Diversity Index3 16


Median Household Income $58,764
Average Household Income $75,101
Per Capita Income $31,171


Total Housing Units 4,976 (100%)
Owner Occupied HU 3,002 (60.3%)
Renter Occupied HU 925 (18.6%)
Vacant Housing Units 1,049 (21.1%)
Median Home Value $217,386
Average Home Value $262,475


Total Households 3,927
Average Household Size 2.39
Family Households 2,700
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 0.59% 0.67%
Households 0.47% 0.59%
Families 0.22% 0.44%
Median Household Income   2.16%
Per Capita Income   2.55%


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, 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 # 23 61st
Population Density # 16 73rd
Diversity Index # 33 43rd
Median Household Income # 2 98th
Per Capita Income # 8 88th

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