Petroleum County, Montana Population 2024

587

Petroleum County, Montana's estimated 2024 population is 587 with a growth rate of 5.96% in the past year according to the most recent United States census data. Petroleum County, Montana is the 56th largest county in Montana. The 2010 population was 489 and has seen a growth of 20.04% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029752334.59%
2028719334.81%
2027686335.05%
2026653335.32%
2025620335.62%
2024587335.96%
2023554336.33%
202252130.58%
2021518193.81%
202049920.4%
2019497-20-3.87%
201851750.98%
2017512214.28%
2016491163.37%
2015475-14-2.86%
2014489-16-3.17%
201350500%
2012505142.85%
201149120.41%
201048900%
1990519-136-20.76%
1980655-20-2.96%
1970675-219-24.5%
1960894-132-12.87%
19501,026-57-5.26%
19401,083-962-47.04%
19302,0451,293171.94%
2024 Growth Rate
5.96% (33)
County Website
Petroleum County
State
Montana
County Seat
Winnett
2020 Population
499
Area
1656 mi²
Density
0 people/mi²
Growth Since 2020
17.64% (88)
Founded
February 25, 1925

Population by Race

Race
Population
Percentage (of total)
White40898.08%
Asian81.92%
Black or African American00%
Native American00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

White

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Other race

Two or more races

Petroleum County, Montana Population by Race

Petroleum County, Montana Population Pyramid 2024

Petroleum County, Montana Median Age

49.6

Total

49.4

Male

51.3

Female

Petroleum County, Montana Adults

There are 344 adults, (91 of whom are seniors) in Petroleum County, Montana.

Petroleum County, Montana Age Dependency

64.4

Age Dependency Ratio

36

Old Age Dependency Ratio

28.5

Child Dependency Ratio

Petroleum County, Montana Sex Ratio

Female19045.67%
Male22654.33%

Petroleum County, Montana Population by Age

Petroleum County, Montana Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1892.270.429.6
Married1262.6973.826.2
Non Family571.1659.640.4
Male41.751000
Female221000

2.65

Average Family Size

2.2

Average Household Size

70.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Petroleum County, Montana Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade10.31%
Associates Degree195.88%
Bachelors Degree5517.03%
Graduate Degree226.81%
High School Graduate14143.65%
Less Than 9th Grade00%
Some College8526.32%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Petroleum County, Montana Educational Attainment by Sex (over 25)

Petroleum County, Montana Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White31531471
Asian886

The highest rate of high school graduation is among asian people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 75%.

Petroleum County, Montana Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$55,125$56,563$38,333
Graduate Degree$53,438$0$53,750
High School Graduate$38,438$31,500$55,083
Less Than 9th Grade$0$0$0
Overall$46,429$46,964$45,893
Some College$46,875$55,852$29,583

$46,429

Average Earnings

$46,964

Average Male

$45,893

Average Female

Petroleum County, Montana Earnings by Educational Attainment

Petroleum County, Montana Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Petroleum County, Montana Language

94.72% of Petroleum County, Montana residents speak only English, while 5.28% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 5.28% of the population.

Petroleum County, Montana Language

Petroleum County, Montana Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White408266.37%

6.25%

Overall Poverty Rate

5.31%

Male Poverty Rate

7.37%

Female Poverty Rate

Poverty in Petroleum County, Montana

The race most likely to be in poverty in Petroleum County, Montana is White, with 6.37% below the poverty level.

The race least likely to be in poverty in Petroleum County, Montana is White, with 6.37% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.08%. Among those working part-time, it was 23.21%, and for those that did not work, the poverty rate was 9.28%.

Petroleum County, Montana Poverty

rate

Rate
Poverty
Less Than 9th Grade100%
High School8.51%
Bachelors or Greater7.79%
Some College0%

Petroleum County, Montana Poverty Rate by Education

rate

Rate
Poverty
Female Employed7.89%
Male Employed3.25%
Male Unemployed0%
Female Unemployed0%

Petroleum County, Montana Poverty Rate by Employment Status and Sex

Petroleum County, Montana Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$77,500$85,177
Households$57,981$69,949
Married Families$78,750$-999,999,999
Non Families$24,821$34,684

mean

median

Income by Household Type

Petroleum County, Montana Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

75.8%

Overall Marriage Rate

73.2%

Male Marriage Rate

78.6%

Female Marriage Rate

Petroleum County, Montana Married by Age and Sex

male

female

Petroleum County, Montana Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 45-54.

Petroleum County, Montana Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Petroleum County, Montana Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

40

Number of Veterans

40

Male Veterans

0

Female Veterans

War
Veterans
First Gulf War26
Vietnam8
Korea3
Second Gulf War0
World War II0

Petroleum County, Montana Veterans by War

count

Age Group
Veterans
35 to 5426
65 to 748
75+6
18 to 340
55 to 640

Petroleum County, Montana Veterans by Age

count

Name
Veterans
% of Total
White4011.9%

Petroleum County, Montana Veterans by Race

Petroleum County, Montana Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

15%

Veteran Disability Rate

Petroleum County, Montana Veterans by Education

LaborForceParticipation

69.3%

Labor Force Participation

68.7%

Employment Rate

0.8%

Unemployment Rate

Petroleum County, Montana Employment by Age

LaborForceParticipation

Petroleum County, Montana Employment by Race

LaborForceParticipation

Petroleum County, Montana Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

62.98%

Born in Petroleum County, Montana

98.8%

Native Born

1.2%

Foreign Born

0%

Non Citizen

1.2%

Naturalized

Place of Birth

98.8% of Petroleum County, Montana residents were born in the United States, with 62.98% having been born in Montana. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Petroleum County, Montana Place of Birth

Sources