Petroleum County Flag

Petroleum County

State:
Montana
County Seat:
Winnett

Petroleum County's estimated 2025 population is 620 with a growth rate of 5.62% in the past year according to the most recent United States census data. Petroleum County is the 56th largest county in Montana. The 2010 population was 489 and has seen a growth of 26.79% since that time.

620
Total Population
0
Population Density (mi²)
56
Population Rank (State)
33 5.62%
Annual Population Growth

Petroleum County Population

Petroleum County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Petroleum County includes 99.25% White, and smaller percentages for Asian and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White39899.25%
Asian30.75%

Petroleum County Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Petroleum County's average per capita income is $40,000. Household income levels show a median of $59,318. The poverty rate stands at 6.48%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$81,875-
Families$78,750$90,634
Households$59,318$79,305
Non Families$33,750$59,164

$40,000

Average Income

$59,318

Median Household Income

6.48%

Poverty Rate