Petroleum County MT Information


Petroleum County Subdivisions

Jump to... (On This Page!)
  1. Petroleum County 2018 Demographic Data
  2. Growth Rates forPetroleum County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Montana Research Tools (Easy Tools & Current Data)
  3. Montana Data Comparison Tool - 2018 Demographics

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


Total Population 476
Population in Households 476
Population in Familes 383
Population in Group Qrtrs 0
Population Density2 0
Diversity Index3 5


Median Household Income $40,831
Average Household Income $57,501
Per Capita Income $26,214


Total Housing Units 325 (100%)
Owner Occupied HU 147 (45.2%)
Renter Occupied HU 70 (21.5%)
Vacant Housing Units 108 (33.2%)
Median Home Value $121,324
Average Home Value $378,571


Total Households 217
Average Household Size 2.19
Family Households 135
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population -0.45% -0.47%
Households -0.44% -0.47%
Families -0.7% -0.6%
Median Household Income   2.45%
Per Capita Income   3.26%


Petroleum County MT - Peer Comparisons by Rank and Percentile

The table below compares Petroleum 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 # 56 2nd
Population Density # 56 4th
Diversity Index # 55 4th
Median Household Income # 46 20th
Per Capita Income # 35 39th

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

Quick & Easy Ways to...

  1. Get Current Demographic Data for Cities, Towns, and ZIP Codes
  2. View Boundary Maps, for Cities, Towns, and ZIP Codes
  3. Locate Physical, Cultural, and Historical Features
  4. Research Public Schools & Attendance Zones

Montana Census Data Comparison Tool

Compare Montana July 1, 2018 Data
Highest or Lowest: