Petroleum County Population 2017

Petroleum County's estimated population is 489 with a growth rate of 3.38% in the past year according to the most recent United States census data. Petroleum County is the 56th largest county in Montana.

Year Population Growth Growth Rate
2016489163.38%
2015473-14-2.87%
2014487-17-3.37%
2013504-4-0.79%
2012508183.67%
2011490-3-0.61%
2010493-26-5.01%
1990519-136-20.76%
1980655-20-2.96%
1970675-219-24.50%
1960894-132-12.87%
19501,026-57-5.26%
19401,083-962-47.04%
19302,0450.00%

Petroleum County Population Growth

Population Data via

Petroleum County Race Data

Race Population Percentage
White46494.89%
American Indian and Alaska Native51.02%
Two or More Races40.82%
Native Hawaiian and Other Pacific Islander0.00%
Asian0.00%
Black or African American0.00%

Petroleum County Population Pyramid

0k0k0k0k0k0kPetroleum County Male Population0k0k0k0k0k0kPetroleum County Female Population

Population of Cities in Petroleum County

Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990