Petroleum County, Montana
Petroleum County: county in Montana, United States
About
Petroleum County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 494. After 10 years in 2020 county had an estimated population of 500 inhabitants. Its county seat is Winnett. The county was created 100 years ago in 1925.
County Snapshot
Petroleum County at a glance
Petroleum County currently has 1 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
1
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Montana counties
56
Open related pagesLargest city
WinnettPopulation 190
Top linked places
Quick Facts about Petroleum County
| Population | 500 (2020) |
| Country | United States of America |
| State | Montana (United States) |
| Area | 4336 km2 |
| Water as percent of area | 1.1% |
| Land as percent of area | 98.9% |
| Latitude & Longitude | 47.1175,-108.2501 |
| Named for | petroleum |
| Altitude | 3,133 feet / 955 meters |
| Capital | Winnett |
| Establishment | January 01, 1926 |
| Time Zone | America/Denver |
| Local time | 19:29:42 (17th April 2026) |
| Population growth | 1.2% (2010-2020) |
| Weather | 21℉ Chance Snow Showers 7-days weather |
Geography
Petroleum County is located at 47°7'3"N 108°15'0"W (47.1175100, -108.2501200). It has 5 neighbors: Phillips County, Fergus County, Garfield County, Musselshell County and Rosebud County.
Petroleum County map
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The largest city of Petroleum County is Winnett with a population of 190. . See all Petroleum County cities & populated places.
Petroleum County Populated Places
Cities, towns, neighborhoods & other populated places in Petroleum County.
| City Name | Population | Title |
|---|---|---|
| Winnett | 190 | Town of the United States |
Weather
A chance of snow showers. Mostly cloudy, with a low around 21. New snow accumulation of less than half an inch possible.
7-Day ForecastOfficial website of Petroleum County
Official Website- Winnett
Demographics
The population of Petroleum County increased by 1.2% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 494 | - | census |
| 2011 | 490 | -0.82% | estimation process |
| 2012 | 504 | 2.78% | estimation process |
| 2013 | 504 | 0% | estimation process |
| 2014 | 488 | -3.28% | estimation process |
| 2015 | 474 | -2.95% | estimation process |
| 2016 | 491 | 3.46% | estimation process |
| 2017 | 512 | 4.1% | estimation process |
| 2018 | 512 | 0% | estimation process |
| 2019 | 487 | -5.13% | estimation process |
| 2020 | 500 | 2.6% | estimation process |
Montana Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Yellowstone County | 162,990 | County in Montana, United States of America |
| Missoula County | 121,630 | County in Montana, United States |
| Billings | 117,445 | The most populous city in Montana. |
| Gallatin County | 116,806 | County in Montana, United States |
| Flathead County | 105,851 | County in Montana, United States |
| Cascade County | 81,346 | County in central Montana, United States |
| Missoula | 76,848 | The most populous city in Missoula County, Montana. |
| Lewis and Clark County | 70,229 | County in Montana, United States |
| Great Falls | 58,353 | Town in Cascade County, Montana, United States |
| Bozeman | 50,970 | Town in Gallatin County, Montana, United States |
| Ravalli County | 45,002 | County in Montana, United States |
| Silver Bow County | 35,180 | County in Montana, United States |
| Butte | 34,190 | Consolidated city-county in Montana, United States |
| Helena | 33,737 | State capital of Montana, United States and seat of Lewis and Clark County |
| Lake County | 30,986 | County in Montana, United States |
| Kalispell | 25,329 | City in Flathead County, Montana, United States |