Petroleum County, Montana Population 2019

Petroleum County, Montana's estimated population is 511 with a growth rate of 3.86% in the past year according to the most recent United States census data. Petroleum County, Montana is the 56th largest county in Montana.

Year Population Growth Growth Rate
201851320.39%
2017511193.86%
2016492183.80%
2015474-14-2.87%
2014488-16-3.17%
20135040.00%
2012504142.86%
201149010.20%
2010489-30-5.78%
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%

How Many People Live in Petroleum County, Montana?

511

Petroleum County, Montana Population Pyramid 2019

Petroleum County, Montana Median Age

51.7


Total

51.9


Male

51.6


Female

Petroleum County, Montana Adults

There are 377 adults, (100 of whom are seniors) in Petroleum County, Montana.

Petroleum County, Montana Age Dependency

63.5

Age Dependency Ratio

36.1

Old Age Dependency Ratio

27.4

Child Dependency Ratio

Petroleum County, Montana Sex Ratio

Female

218

48.12%

Male

235

51.88%

Petroleum County, Montana Households and Families

Petroleum County, Montana Renter vs Owner Occupied by Household Type

Petroleum County, Montana Household Types

Type Owner Renter
Male100%0%
Married68.7%31.3%
All65%35%
Non Family60.8%39.2%
Female16.7%83.3%

65.0%

Rate of Home Ownership

Type Count Average Size Owned
All2062.265
Married1152.6268.7
Non Family791.3260.8
Female63.516.7
Male64.5100

2.69

Average Family Size

2.2

Average Household Size

3.4%

Unmarried (Opposite Sex)

2.4%

Unmarried (Same Sex)

Petroleum County, Montana Education

Education Attained Count Percentage
Less Than 9th Grade0.00%
9th to 12th Grade71.90%
High School Graduate17647.83%
Some College5615.22%
Associates Degree369.78%
Bachelors Degree6818.48%
Graduate Degree256.79%

Petroleum County, Montana Educational Attainment by Race

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 100.00%.

Name Average Male Female
Overall$31,563$33,594$30,833
Less Than High School$$$
High School Grad$27,500$27,266$29,375
Some College$30,625$32,917$23,750
Bachelors Degree$52,159$91,250$50,893
Graduate Degree$34,000$$32,250

$31,563

Average Earnings

$33,594

Average Male

$30,833

Average Female

Petroleum County, Montana Language

Petroleum County, Montana Language by Age

Petroleum County, Montana Language

99.77% of Petroleum County, Montana residents speak only English, while 0.23% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 0.23% of the population.

Petroleum County, Montana Poverty

Petroleum County, Montana Poverty by Race

10.11%

Overall Poverty Rate

10.39%

Male Poverty Rate

9.81%

Female Poverty Rate

Poverty in Petroleum County, Montana

The race most likely to be in poverty in Petroleum County, Montana is White, with 10.27% below the poverty level.

The race least likely to be in poverty in Petroleum County, Montana is White, with 10.27% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.66%. Among those working part-time, it was 7.45%, and for those that did not work, the poverty rate was 16.51%.

Name Poverty
Less Than High School28.57%
High School15.34%
Some College3.26%
Bachelors or Greater2.15%
Name Poverty
Female Unemployed0.00%
Female Employed5.88%
Male Employed5.11%
Male Unemployed0.00%

Petroleum County, Montana Income

Petroleum County, Montana Income by Household Type

Name Median Mean
Households$46,429$64,053
Families$61,042$73,760
Married Families$61,458-
Non Families$32,422$42,456

Petroleum County, Montana Marital Status

Petroleum County, Montana Marital Status

Marriage Rates

61.7%

Overall Marriage Rate

61.9%

Male Marriage Rate

61.4%

Female Marriage Rate

Petroleum County, Montana Married by Age and Sex

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 55-64.

Petroleum County, Montana Marital Status by Race

Petroleum County, Montana Veterans

46

Number of Veterans

38

Male Veterans

8

Female Veterans

War Veterans
First Gulf War14
World War II6
Vietnam4
Korea1
Second Gulf War

Petroleum County, Montana Veterans by Race

Petroleum County, Montana Veterans by Education

6.52%

Veteran Poverty Rate

41.30%

Veteran Disability Rate

Petroleum County, Montana Employment Status

68.2%

Labor Force Participation

64.6%

Employment Rate

5.2%

Unemployment Rate

Petroleum County, Montana Place of Birth

Origin of Non Citizens

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

Origin of Naturalized Citizens

56.51%

Born in Montana

98.45%

Native Born

1.55%

Foreign Born

0.00%

Non Citizen

Place of Birth

98.45% of Petroleum County, Montana residents were born in the United States, with 56.51% having been born in Montana. 0.00% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Population of Cities in Petroleum County, Montana

  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