COUNTY · 1990 CENSUS

Petroleum County

Montana · 519 residents · 1,655.625 sq mi

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The short version

Petroleum County has notably lower household income than the US average, with a median household income of $19,219. Population has held roughly steady since 2000. Median home value is $14,999. The poverty rate of 25.6% is well above the national figure.

At a glance

Lower income

below the US median

US median: $30,130

Older

median age 35.8

US median: 33.0

Average education

18% hold a bachelor's degree

US average: 20%

More affordable

home values down 61%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

519

+5%vs 2000

vs 493 in 2000

1990 – 2025

Population density

0 / sq mi

+5%vs 2000

vs 0 / sq mi in 2000

US average: 221

Median age

35.8

−13%vs 2000

vs 41.1 in 2000

US average: 33.0

Population, 1990 – 2024

2024447

Section 02

Income & economy

Median household income

$19,219

+5%inflation adjusted, since 2000

vs $24,107 in 2000

US average: $30,130

1990 – 2024

Per capita income

$9,876

−38%vs 2000

vs $15,986 in 2000

US average: $14,340

Poverty rate

25.6%

+2.4 ptsvs 2000

vs 23.2% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$14,999

−61%inflation adjusted, since 2000

vs $51,000 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$291

+16%inflation adjusted, since 2000

vs $330 in 2000

US average: $450

Owner-occupied

76.1%

+1.7 ptsvs 2000

vs 74.4% in 2000

23.9% rent

Afford Score

0.8

−63%vs 2000

vs 2.1 in 2000

1990 – 2024

RELATED:See current rent listings in Petroleum County on RentDataNow

Section 04

Race & ethnicity

2000

White, non-Hispanic98.2%(484)

Black0%(0)

Hispanic / Latino1.2%(6)

Asian0%(0)

Other0%

Diversity Score3%(15)

1990

White, non-Hispanic98.8%(513)

Black0%(0)

Hispanic / Latino0%(0)

Asian0%(0)

Other1.2%(6)

Diversity Score2.9%(15)

Diversity Score

−6%vs 2000

vs 3 in 2000

1990 – 2024

Section 05

Education

Bachelor's degree or higher

17.5%

+0.1 ptsvs 2000

vs 17.4% in 2000

US average: 20.3%

High school or higher

81.9%

−1.0 ptsvs 2000

vs 82.9% in 2000

US average: 75.2%

Graduate degree

2.1%

+1.2 ptsvs 2000

vs 0.9% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

48.3 min

+356%vs 2000

vs 10.6 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Petroleum County

Head to head

Compare Petroleum County to nearby counties

PETROLEUM COUNTY VS

Musselshell County

Income$58,920+207%

Home value$235,000+1467%

Population5,582+919%

SEE FULL COMPARISON →

PETROLEUM COUNTY VS

Fergus County

Income$63,706+231%

Home value$236,100+1474%

Population11,825+2058%

SEE FULL COMPARISON →

PETROLEUM COUNTY VS

Garfield County

Income$69,583+262%

Home value$169,900+1033%

Population1,148+109%

SEE FULL COMPARISON →

PETROLEUM COUNTY VS

Golden Valley County

Income$58,333+204%

Home value$212,200+1315%

Population844+54%

SEE FULL COMPARISON →

Frequently asked

How many people live in Petroleum County, Montana?

Petroleum County, Montana has about 519 residents according to the 1990 Census.

What is the median household income in Petroleum County, Montana?

The typical household in Petroleum County, Montana earns about $19,219 a year. Half of households make more than that, and half make less.

Is Petroleum County, Montana expensive?

In Petroleum County, Montana, the median home is worth about $14,999, and the typical rent is about $291 a month.

How educated are people in Petroleum County, Montana?

About 17.5% of adults age 25 and over in Petroleum County, Montana hold a bachelor's degree or higher.

What is the poverty rate in Petroleum County, Montana?

About 25.6% of people in Petroleum County, Montana live below the federal poverty line.

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Explore from here

1 census tract

Census Tract 1

1 ZIP code

ZIP 59087

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →