Petroleum County, MT Population Statistics: Density Map Data
Analyze local population trends, population density map, housing costs, and the local economy.
Area Snapshot Statistics
Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.
Population: density and quick facts
| Metric | Petroleum County | Montana Avg | U.S. Average |
|---|---|---|---|
| Population | 396 | 1,116,316 | 334,821,731 |
| Population density (per sq mi) | 0.2 | 7.6 | 85.8 |
| Population growth (%/yr) | -1.43% | 1.09% | 0.57% |
| Median age | 50.8 | 40.4 | 37.1 |
| Households | 200 | 452,676 | 128,459,983 |
Population in Petroleum County declined by 21.8% from 2009 to 2023, reaching 401 in 2023.
Population Growth 2009–2023
Race & Ethnicity
Economy
Petroleum County has a the economy index of B, which means it is quite prosperous.
| Metric | Petroleum County | Montana Avg | U.S. Average |
|---|---|---|---|
| Median household income | $57,856 | $69,624 | $78,145 |
| Income growth (%/yr) | 8.05% | 5.32% | 5.07% |
| Unemployment rate | 1.0% | 3.7% | 5.2% |
The median household income in Petroleum County is about 17% lower than in Montana.
Housing
| Metric | Petroleum County | Montana Avg | U.S. Average |
|---|---|---|---|
| Median home price | — | $242,768 | $242,182 |
| Median rent | $768 | $1,031 | $1,342 |
| Homeownership rate | 77.0% | 69.4% | 65.1% |
Commute Time & Mobility
Commuters in Petroleum County spend about 17 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 70 hours, about 2.9 full days, spent commuting.
| Metric | Petroleum County | Montana Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 8.4 | 16.0 | 22.5 |
| Round-trip commute (min) | 16.8 | 32.0 | 44.9 |
| Yearly time spent (hours) | 70 | 134 | 187 |
| Estimated yearly cost | $2,168 | $4,139 | $5,803 |
| Work from home | 13.4% | 11.6% | 13.4% |
| Highway traffic (vehicles/day) | — | 2,162 | 8,813 |
| Local road traffic (vehicles/day) | 81 | 403 | 1,355 |
Fastest commutes among counties in
Montana:
Fallon County (7.4 min), Garfield County (7.8 min), Treasure County (7.8 min).
Slowest:
Broadwater County (30.4 min), Granite County (23.4 min), Stillwater County (22.8 min).
The average commute time in Petroleum County is 8 minutes, shorter than the 16 minutes in Montana.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Petroleum County has a education index of C, which means it is somewhat educated.
| Metric | Petroleum County | Montana Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 22.4% | 31.3% | 31.6% |
| Average household size | 2.01 | 2.38 | 2.54 |
Highest education index among counties in
Montana:
Gallatin County (0.4), Missoula County (0.3), Lewis and Clark County (0.3).
Lowest:
Liberty County (0.2), Toole County (0.2), Wheatland County (0.2).
Health
| Metric | Petroleum County | Montana Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | — | 79.0 | 78.3 |
| Self-rated poor health | 12.8% | 14.7% | 16.3% |
| Smokers | 16.3% | 18.8% | 19.0% |
Highest health index among counties in
Montana:
Gallatin County (0.8), Missoula County (0.8), Granite County (0.8).
Lowest:
Glacier County (0.7), Big Horn County (0.8), Roosevelt County (0.8).
Frequently Asked Questions
Common questions about Petroleum County, Montana.
What is the population of Petroleum County, Montana?
The population of Petroleum County, Montana is 396, compared to the U.S. total of 334,821,731.
What is the population density of Petroleum County, Montana?
The population density of Petroleum County, Montana is 0.2 people per square mile, compared to the U.S. average of 85.8 people per square mile.
What is the median household income in Petroleum County, Montana?
The median household income in Petroleum County, Montana is $57,856, compared to the U.S. median of $78,145.
What is the unemployment rate in Petroleum County, Montana?
The unemployment rate in Petroleum County, Montana is 1.0%, compared to the U.S. average of 5.2%.