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  • FIPS 30069

Petroleum County, Montana

Petroleum County had 525 residents in the Census Vintage 2024 estimate, on 1,655.6 square miles of land. It ranks 56th of 56 in Montana by population and 43rd by land area.

Population
525
#56 of 56 in Montana · #3,137 in US
Area
1,655.6 sq mi
#43 of 56 in Montana · #366 in US
Density
0.3 / sq mi
#55 of 56 in Montana · #3,128 in US
Median household income
$50,164
#53 of 56 in Montana · #2,710 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Petroleum County within Montana. Pin: Helena.

Measure from here

Tools and pages that start from Petroleum County

Petroleum County population, land area and income

Petroleum County had 525 residents in the Census Vintage 2024 estimate, on 1,655.6 square miles of land. It ranks 56th of 56 in Montana by population and 43rd by land area. That works out to 0.3 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Montana has 7,814 residents, so Petroleum County has 7% of the typical county's population.

Its SAIPE 2023 median household income of $50,164 is in the bottom quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

525

3144th1st

3137th of 3,144 (US)

Land area

1,656 sq mi

3144th1st

366th of 3,144 (US)

Density

0.3 / sq mi

3144th1st

3128th of 3,144 (US)

Median household income

$50,164

3143rd1st

2710th of 3,143 (US)

Rank within Montana (56)

Population

525

56th1st

56th of 56 (MT)

Land area

1,656 sq mi

56th1st

43rd of 56 (MT)

Density

0.3 / sq mi

56th1st

55th of 56 (MT)

Median household income

$50,164

56th1st

53rd of 56 (MT)

How Petroleum County's population changed since 2020

Petroleum County gained 23 residents between the July 2020 and July 2024 estimates, a rise of 4.6%. That ranks 20th of 56 in Montana for growth. The median Montana county changed by +2.8%, and the state as a whole by +4.6%.

Since the April 2020 estimates base, Petroleum County recorded 22 births and 33 deaths, a natural change of -11. Net international migration added +0 and net domestic migration, people moving to or from other US counties, came to +42. The largest single component was domestic migration, which added 42 people.

50220205202021520202254320235252024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
22
Deaths
33
Net international migration
+0
Net domestic migration
+42
Change, July 2023 to July 2024
-18

Where Petroleum County is

The Census internal point of Petroleum County is at 47.141900, -108.226600. It sits in UTM zone 12N. The map shades Montana's 56 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Petroleum County outlined. Dots are towns of 1,000+ people with residents in it.

Liberty County: -1.2%Golden Valley County: +5.1%Dawson County: -2.1%Flathead County: +9.2%Beaverhead County: +6.7%Prairie County: +2.0%Garfield County: +0.9%Lewis and Clark County: +5.5%Sweet Grass County: +2.4%Wheatland County: -0.7%Ravalli County: +8.5%Jefferson County: +9.6%Carter County: -0.6%Chouteau County: -0.6%Custer County: +0.9%Teton County: +3.1%Granite County: +9.0%Deer Lodge County: +4.1%Cascade County: +0.1%Powder River County: +2.4%Meagher County: +7.3%Daniels County: -1.7%Glacier County: -1.8%Wibaux County: -2.7%Fallon County: -2.7%McCone County: -0.7%Sheridan County: -2.5%Missoula County: +3.5%Toole County: +3.7%Sanders County: +11.5%Roosevelt County: -5.6%Rosebud County: -1.3%Treasure County: -2.5%Yellowstone County: +3.9%Blaine County: -1.4%Musselshell County: +14.8%Broadwater County: +21.0%Powell County: +2.6%Fergus County: +3.4%Phillips County: +0.1%Gallatin County: +6.2%Silver Bow County: +2.6%Madison County: +12.6%Richland County: -4.4%Lake County: +6.9%Valley County: -1.7%Judith Basin County: +4.3%Hill County: -1.2%Big Horn County: -2.2%Stillwater County: +5.0%Carbon County: +9.4%Mineral County: +13.7%Petroleum County: +4.6%Pondera County: +3.4%Park County: +4.9%Lincoln County: +12.4%
Change 2020 to 2024
  1. < -1.4%
  2. < +0.9%
  3. < +3.9%
  4. < +7.3%
  5. ≥ +7.3%
no data

Orange pin: Petroleum County internal point. Dark pin: Helena.

Internal point

Decimal
47.141900, -108.226600
DMS
47°08'30.84"N 108°13'35.76"W
UTM
12N 710284.4E 5224665.3N
Geohash
c87h1jzv3
Plus code
85VH4QRF+Q9

Towns in Petroleum County

No incorporated place of 1,000 or more people has residents in Petroleum County. Its 525 residents live in smaller towns, census-designated places, or unincorporated land, which the subcounty estimates do not list at this size.

Counties bordering Petroleum County

The Census 2024 county adjacency file lists 5 neighbors for Petroleum County. The most populous is Fergus County, MT, with 11,862 residents. Distances run between Census internal points in a straight line.

Distance to Helena and the nearest big city

Helena is 183.1 miles W of Petroleum County's internal point in a straight line. The nearest place of 100,000 or more is Billings, MT (population 121,483), 94.8 miles away.

Petroleum County FIPS code

The FIPS code of Petroleum County is 30069: state code 30 for Montana plus county code 069. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $50,164.

Questions people ask

What is the population of Petroleum County, Montana?

The Census Vintage 2024 estimate for July 1, 2024 is 525. That is up 23 people (4.6%) from the July 2020 estimate of 502.

What is the FIPS code of Petroleum County?

30069. The first two digits (30) are Montana; the last three (069) identify the county.

What is the largest town in Petroleum County?

No incorporated place of 1,000 or more people has residents in Petroleum County. Its people live in smaller towns, census-designated places or unincorporated land.

Which counties border Petroleum County?

5 county-equivalents border it in the Census 2024 adjacency file: Fergus County, MT; Rosebud County, MT; Musselshell County, MT; Phillips County, MT; Garfield County, MT.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.