Petroleum County, Montana's estimated population is 517 with a growth rate of 0.39% in the past year according to the most recent United States census data. Petroleum County, Montana is the 56th largest county in Montana.
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2020 | 517 | 2 | 0.39% |
| 2019 | 515 | 2 | 0.39% |
| 2018 | 513 | 2 | 0.39% |
| 2017 | 511 | 19 | 3.86% |
| 2016 | 492 | 18 | 3.80% |
| 2015 | 474 | -14 | -2.87% |
| 2014 | 488 | -16 | -3.17% |
| 2013 | 504 | 0.00% | |
| 2012 | 504 | 14 | 2.86% |
| 2011 | 490 | 1 | 0.20% |
| 2010 | 489 | -30 | -5.78% |
| 1990 | 519 | -136 | -20.76% |
| 1980 | 655 | -20 | -2.96% |
| 1970 | 675 | -219 | -24.50% |
| 1960 | 894 | -132 | -12.87% |
| 1950 | 1,026 | -57 | -5.26% |
| 1940 | 1,083 | -962 | -47.04% |
| 1930 | 2,045 | 0.00% |
| Race | Population | Percentage |
|---|---|---|
| White | 424 | 98.15% |
| Asian | 8 | 1.85% |
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 187 | 2.31 | 67.4 |
| Married | 98 | 2.71 | 73.5 |
| Non Family | 77 | 1.44 | 59.7 |
| Male | 8 | 5.25 | 100 |
| Female | 4 | 3.25 | 0 |
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 0.00% | |
| 9th to 12th Grade | 4 | 1.18% |
| High School Graduate | 137 | 40.53% |
| Some College | 59 | 17.46% |
| Associates Degree | 40 | 11.83% |
| Bachelors Degree | 66 | 19.53% |
| Graduate Degree | 32 | 9.47% |
| Name | Total | High School | Bachelors |
|---|---|---|---|
| White | 330 | 326 | 92 |
| Asian | 8 | 8 | 6 |
The highest rate of high school graduation is among asian people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 75.00%.
97.54% of Petroleum County, Montana residents speak only English, while 2.46% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.46% of the population.
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 411 | 35 | 8.52% |
8.35%
Overall Poverty Rate
8.14%
Male Poverty Rate
8.59%
Female Poverty Rate
The race most likely to be in poverty in Petroleum County, Montana is White, with 8.52% below the poverty level.
The race least likely to be in poverty in Petroleum County, Montana is White, with 8.52% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 5.00%. Among those working part-time, it was 8.45%, and for those that did not work, the poverty rate was 13.33%.
62.3%
Overall Marriage Rate
62.7%
Male Marriage Rate
61.9%
Female Marriage Rate
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 55-64.
| Name | Veterans | % of Total |
|---|---|---|
| White | 43 | 12.72% |
0.00%
Veteran Poverty Rate
51.16%
Veteran Disability Rate
66%
Labor Force Participation
64%
Employment Rate
3%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
98.61%
Native Born
1.39%
Foreign Born
0.00%
Non Citizen
98.61% of Petroleum County, Montana residents were born in the United States, with 67.13% having been born in Montana. 0.00% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.