Yellowstone County MT Information


Yellowstone County Subdivisions

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


Total Population 163,372
Daytime Population: Workers 86,622
Daytime Population: Residents 78,866
Total Daytime Population (TDP) 165,488
Ratio TDP/Total Population1 1.01
Population in Households 159,677
Population in Familes 123,063
Population in Group Qrtrs 3,695
Population Density2 62
Diversity Index3 30


Median Household Income $53,732
Average Household Income $74,583
Per Capita Income $30,560


Total Housing Units 69,874 (100%)
Owner Occupied HU 43,316 (62.0%)
Renter Occupied HU 23,000 (32.9%)
Vacant Housing Units 3,558 ( 5.1%)
Median Home Value $211,057
Average Home Value $234,692


Total Households 66,316
Average Household Size 2.41
Family Households 41,020
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 1.37% 1.31%
Households 1.23% 1.3%
Families 0.93% 1.12%
Median Household Income   1.68%
Per Capita Income   2.28%


Yellowstone County MT - Peer Comparisons by Rank and Percentile

The table below compares Yellowstone 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 # 1 100th
Population Density # 1 100th
Diversity Index # 13 79th
Median Household Income # 8 88th
Per Capita Income # 13 79th

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