Petroleum County Population 2018

Petroleum County's estimated population is 523 with a growth rate of 5.02% 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
2017523255.02%
2016498183.75%
2015480-14-2.83%
2014494-16-3.14%
20135100.00%
2012510142.82%
201149610.20%
2010495-24-4.62%
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
White46488.72%
American Indian and Alaska Native50.96%
Two or More Races40.76%
Native Hawaiian and Other Pacific Islander0.00%
Asian0.00%
Black or African American0.00%

Petroleum County Population Pyramid

0k0k0k0k0k0k Male Population0k0k0k0k0k0k Female Population8580757065605550454035302520151050
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