Check my match
Montana

Petroleum County, MT: personal loan guide and local data

By the Personal Loan Compare editorial team · Last reviewed and updated October 28, 2026 · How we write and check

Short answer

The median Petroleum County household earns $60,208, and 8% of residents live below the poverty line. A loan makes sense only if its total cost beats your alternatives and the payment fits your budget. Check the lender's Montana license first.

On this page
  1. Who lives in Petroleum County
  2. Household income in Petroleum County
  3. The Petroleum County job picture
  4. Renting and owning in Petroleum County
  5. Cities, towns and CDPs in Petroleum County
  6. Counties near Petroleum County
  7. Debt-to-income at Petroleum County's medians
  8. More Petroleum County figures
  9. Before borrowing in Petroleum County
  10. Lender oversight for Petroleum County
  11. Before you sign
  12. Nearby and statewide guides
  13. Frequently asked questions

Who lives in Petroleum County

447Population (ACS 2020-24)
$60,208Median household income
$800/moMedian gross rent
$201,400Median home value
73%Owner-occupied homes
8%Below the poverty line
1,656 sq miLand area
51.6Median age

With an estimated 447 residents (ACS 2020 to 2024), Petroleum County ranks 56th of 56 in Montana for population. It covers 1,656 square miles of land, with fewer than one resident per square mile. It sits outside every metropolitan statistical area in the July 2023 OMB delineation. Winnett, with about 204 people, is the only Census place mainly inside the county. Small populations mean wide margins of error, so read every Petroleum County figure on this page as a rough guide.

Household income in Petroleum County

The median household income in Petroleum County is $60,208; statewide it is $72,509, so Petroleum County runs 17% below Montana as a whole. Only 34 Montana counties post a higher median.

BandPetroleum CountyCompared with Montana
Under $35,00027.1%+4.6 pts
$35,000 to $99,99945.2%+2.4 pts
$100,000 to $199,99922.2%-3.5 pts
$200,000 or more5.4%-3.6 pts

Some 27% of households here live on less than $35,000 a year; 28% have six-figure incomes. The poverty rate is 8.1%, 3 points lower than the state's 11.5%. The Gini index of income inequality is 0.427 (0 is perfect equality). None of these numbers decides a Petroleum County application. Lenders weigh your own documented income against your own debts.

The Petroleum County job picture

By the Census industry count, 36% of employed Petroleum County residents work in agriculture, forestry and mining and 20% in education and health care. Agriculture, forestry and mining stands out: 36% of workers here, versus 6% statewide. About 50% drive to work alone and 15% have trips of 45 minutes or more.

IndustryShare of Petroleum County workersvs Montana
Agriculture, forestry and mining35.7%+29.7 pts
Education and health care19.6%-3.6 pts
Retail trade10.2%-1.5 pts
Construction10.2%+1.0 pts
Transportation, warehousing and utilities9.8%+4.8 pts
Public administration8.5%+2.8 pts

A lender verifies what your own job pays. The county's industry mix tells you about the local economy, not about your application.

Renting and owning in Petroleum County

Renters in Petroleum County pay a median of $800 a month, 26% below the Montana figure of $1,081. With a median value of $201,400, a typical Petroleum County house costs 3.3 times what the median household earns in a year. 73% of Petroleum County households own their home and 27% rent.

Home costsPetroleum CountyMontanaU.S. middle county
Median gross rent$800/mo$1,081/mo$877/mo
Median home value$201,400$375,800$185,300
Owners73%69%75%
Burdened owners46%30%n/a
Mobile homes21.2%9.4%n/a
Vacant units29%13%n/a

Owners with equity have a second option. Weigh a secured line against an unsecured loan by risk as well as cost before you choose (how they compare).

Cities, towns and CDPs in Petroleum County

Just one Census place, Winnett, lies mainly within Petroleum County; it holds about 204 people. None of the 1 has its own city guide, so this page covers all of them.

CommunityTypeResidentsHousehold income (median)Rent (median)Distance
Winnetttown204$49,583$82011 mi

Counties near Petroleum County

Musselshell County is closest, 45 miles from center to center; the sixth, Phillips County, is 78 miles off. Garfield County leads the group on income ($69,583), Phillips County trails ($53,417), and Petroleum County out-earns 3 of the six.

CountyMilesMedian household incomeMedian rentHomeownership
Petroleum County-$60,208$800/mo73%
Musselshell County, MT45 mi$58,920$1,138/mo85%
Fergus County, MT48 mi$63,706$954/mo63%
Garfield County, MT58 mi$69,583$725/mo72%
Golden Valley County, MT69 mi$58,333$783/mo81%
Treasure County, MT78 mi$67,917$850/mo68%
Phillips County, MT78 mi$53,417$536/mo74%

Debt-to-income at Petroleum County's medians

Lenders compare monthly debt payments with gross monthly income, the debt-to-income ratio. For a Petroleum County household at the medians it works out like this; treat it as an illustration only.

  • $5,017 a month: gross income for a household at the Petroleum County median
  • Housing at the median rent of $800 uses 16%
  • With a 36% ceiling, about $1,006 remains for car, card, student and any new loan payments
  • $1,357: what a 43% ratio leaves once rent is paid

Lenders set their own limits and look beyond the ratio. The DTI calculator uses your figures instead of Petroleum County's.

More Petroleum County figures

College graduates make up 31% of the adult population. About 7% go without health insurance.

People and householdsPetroleum CountyMontanaMedian county
Median age51.640.441.5
Bachelor's or higher30.8%35.2%22.2%
No high school diploma1.1%5.4%n/a
No health insurance6.7%8.6%7.8%
Work from home15.3%12.5%8.7%
Poverty rate8.1%11.5%13.2%

Before borrowing in Petroleum County

The county's numbers point to a few situations that come up often for Petroleum County borrowers.

  • Mobile home upkeep. 21% of units fall in this category; roof, skirting and HVAC jobs are common reasons to borrow.
  • Fixed incomes. Petroleum County's median age is 51.6. Social Security and pensions count as income when documented.
  • Requirements. Lenders weigh credit history, documented income and existing debt (what to gather).

Lender oversight for Petroleum County

Petroleum County borrowers fall under statewide rules, enforced by the Montana Division of Banking and Financial Institutions. A CFPB complaint gets forwarded to the company for a response. The Montana guide covers state rules in more detail.

Before you sign

Steps that save money for Petroleum County residents:

  • Get a written quote for whatever you are paying for in Petroleum County.
  • Line up offers side by side: APR, fees in dollars, total cost.
  • Look the lender up with the state regulator first.
  • Confirm the first due date before setting up autopay.

Nearby and statewide guides

The Montana guide covers the whole state.

Frequently asked questions

Is Petroleum County a high-income county?

Its $60,208 median ranks 35th of 56 Montana counties and compares with $65,681 for the median U.S. county.

How much is rent in Petroleum County?

Median gross rent, utilities included, is $800 a month.

What are the biggest places in Petroleum County?

By population: Winnett. The county has 1 Census place in all.

Will a Petroleum County address affect my match?

Beyond confirming Montana as your state, no. Your answers about amount, credit, income and payments are all that count.

Who do I complain to about a lender in Petroleum County?

Start with the Montana Division of Banking and Financial Institutions, then the CFPB complaint portal. Keep copies of every message.

CallCheck my match