Groundwork

Auto · County · Montana

Auto repair shops in Petroleum County, MT

Competitor counts, household spending and official business counts for auto repair shops in Petroleum County, MT, set against other counties and the U.S.

Groundwork market score

Not scored

Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.

Listings
0
None on the map
Official establishments
n/a
Fewer than 3, or not published
Household spending a year
$286K
On vehicle maintenance and repairs · $1,295 a household
Spending per listing
n/a
Listings per 10k households
0.0
Population, 2025
548
+9.2% since 2020

See the auto repair shops around any address in Petroleum County

The site report maps the auto repair shops on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Petroleum County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

Household spending on vehicle maintenance and repairs in Petroleum County comes to about $286K a year: $1,295 per household, 35% above the U.S. average. The spending figure covers all vehicle maintenance and repairs, not only auto repair shops.

Map listings as of September 2026 show no auto repair shops in Petroleum County. At the national ratio of auto repair shops to household spending, Petroleum County would have about 1, against none on map listings.

Official counts don’t publish a figure for mechanical, body and glass repair in Petroleum County, since they leave out counts under 3.

Population estimates show Petroleum County grew 9.2% from 2020 to 2025, faster than the U.S. (+3.1%). Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures.

How Petroleum County compares

The same measures for Montana and the whole U.S. Spending per listing divides a year of household spending on all vehicle maintenance and repairs by the auto repair shops counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Auto repair shops in Petroleum County, MT compared with Montana and the U.S.
MeasurePetroleum CountyMontanaU.S.
Listings per 10k households0.026.121.5
Spending per listingn/a$443K$445K
Households per official establishmentn/a609955
Official establishment growth, 2019–2023n/a+6.7%+2.1%
Population growth, 2020–2025+9.2%+5.3%+3.1%
Spending per household on vehicle maintenance and repairs$1,295$1,157$958
Median household income$60,208$72,509$80,734
Groundwork market scoreNot scored49

Official counts and lending

Businesses

Official establishments, 2019 to 2023
n/a
Employees, 2023
n/a
Annual payroll, 2023
n/a
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
0
Listings at the U.S. rate for this spending
1The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
0
Amount
$0

SBA-backed loans to businesses classed as mechanical, body and glass repair in Petroleum County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.

Population and households in Petroleum County

Population, 2025 estimate
548+9.2% since 2020
Households
221
Median age
Not shownNot reliable for an area this small
Homes lived in by their owners
73%
Vehicles per household
2.5
Land area
1,656 sq. mi.
People per square mile
0
Median household income
$60,208
Average household income
$78,436
Median home value
$201,400
Jobs located here
76
Daytime population
Not shownNot reliable for an area this small

Looking at a specific site in Petroleum County?

These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the auto repair shops on map listings by name and distance.

Or open the report at the center of Petroleum County. Signed out, you see a blurred preview; on an account, each report is one action.

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Auto repair shops across Montana

Every Montana market ranked →

The highest-scoring counties in Montana for auto repair shops, numbered among those based in Montana, with Petroleum County marked.

Top counties in Montana

Counties in Montana ranked for auto repair shops by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Jefferson County, MT96714.0$1.1M+9.8%#1 of 2,378
2Sanders County, MT841018.3$650K+12.9%#62 of 2,378
3Lake County, MT722015.9$777K+6.9%#282 of 2,378
4Big Horn County, MT69513.1$869K−2.5%#359 of 2,378
5Carbon County, MT661123.6$559K+9.1%#493 of 2,378
6Gallatin County, MT6312624.6$498K+7.7%#618 of 2,378
7Glacier County, MT57921.0$487K−2.0%#858 of 2,378
8Fergus County, MT551426.4$446K+3.1%#964 of 2,378
9Ravalli County, MT555428.9$429K+9.4%#972 of 2,378
10Missoula County, MT5311521.8$486K+4.4%#1,051 of 2,378
Petroleum County, MTNot scored00.0n/a+9.2%

Other business types in Petroleum County

None has a Groundwork market score here. Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.

Questions

How many auto repair shops are in Petroleum County, MT?

There are no auto repair shops on map listings in Petroleum County as of September 2026. The listings count general, specialty, body and glass repair shops. No official count is published for mechanical, body and glass repair in Petroleum County: counts under 3 are left out.

How much do households in Petroleum County, MT spend on vehicle maintenance and repairs?

About $286K a year, or $1,295 per household. That is 35% above the U.S. average (an index of 135, where 100 is the U.S. average). That spending covers all vehicle maintenance and repairs, which auto repair shops share with other businesses in the trade. It is estimated from the incomes of the 221 households in Petroleum County and national spending patterns by income.

How does Petroleum County, MT compare with the U.S. for auto repair shops?

Petroleum County has no auto repair shops on map listings. At the U.S. ratio of auto repair shops to household spending, Petroleum County would have about 1, against none on map listings.

How fast is Petroleum County, MT growing?

Population estimates put Petroleum County at 548 people in 2025, up 9.2% since 2020, faster than the U.S. (+3.1%). It has 221 households. Median household income in Petroleum County is $60,208, 25% below the U.S. median of $80,734.

What is the Groundwork market score?

The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. The score leaves out counties under 10,000 people, where a handful of businesses would swing it.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Petroleum County. It maps the auto repair shops on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.

How the score works · Top markets for auto repair shops · All 56 business types in Petroleum County

Screening a site or an acquisition in Petroleum County?

A site report maps the competitors on map listings near an address and sizes the households and spending around it.

The button opens the report at the center of Petroleum County. Signed out, you see a blurred preview; on an account, each report is one action.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are estimates for research only. Not investment or real estate advice.