Custer County MT Information


Custer County Subdivisions

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


Total Population 12,529
Daytime Population: Workers 5,816
Daytime Population: Residents 6,714
Total Daytime Population (TDP) 12,530
Ratio TDP/Total Population1 1.00
Population in Households 12,116
Population in Familes 9,163
Population in Group Qrtrs 413
Population Density2 3
Diversity Index3 18


Median Household Income $45,773
Average Household Income $62,713
Per Capita Income $27,526


Total Housing Units 5,871 (100%)
Owner Occupied HU 3,436 (58.5%)
Renter Occupied HU 1,966 (33.5%)
Vacant Housing Units 469 ( 8.0%)
Median Home Value $137,886
Average Home Value $180,879


Total Households 5,402
Average Household Size 2.24
Family Households 3,159
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 0.95% 0.76%
Households 0.99% 0.79%
Families 0.65% 0.58%
Median Household Income   1.81%
Per Capita Income   2.59%


Custer County MT - Peer Comparisons by Rank and Percentile

The table below compares Custer 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 # 15 75th
Population Density # 25 57th
Diversity Index # 28 52nd
Median Household Income # 26 55th
Per Capita Income # 26 55th

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