Race, Diversity, and Ethnicity in Petroleum County, MT

The map below shows majority race by area in Petroleum County, as self-identified on the US census. Darker shades indicate a larger racial majority in that neighborhood. This page also contains data and maps on Petroleum County racial diversity and diversity scores. Click here to scroll to diversity data.

Petroleum County, MT map of race and ethnicity
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White
Hispanic
Black
Asian
Multiple/Other
WhiteHispanicBlackAsianMultiple/Other
Majority race by area

The majority race in Petroleum County overall is white, making up 98.9% of residents. The next most-common racial group is asian at 0.7%. There are more white people in the north areas of the county. People who identify as asian are most likely to be living in the southeast places. The data below shows how many people identify themselves as each of the following races, which most Americans base on their family's national origin:

Race in Petroleum County

 
Self-Identified Race
Petroleum County, MT Population
White
98.9%
Hispanic
0.0%
Black
0.0%
Asian
0.7%
Native American
0.4%
Other
0.0%
   

Diversity and Diversity Scores for Petroleum County, MT

The map below shows diversity in Petroleum County. Areas in green are more diverse, while areas in red are much less diverse. Diversity, in this case, means a mixture of people with different race and ethnicity living close to one another. For example, all-black and all-white areas in the county would both be considered lacking diversity.

Petroleum County, MT map of race and ethnicity
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Colorblind friendly off

Petroleum County Diversity Score

2.2

More diverse than 2% of US counties

Petroleum County has a diversity score of 2.2: the chance, in percent, that two residents picked at random belong to different racial or ethnic groups, from ACS race counts. A place where everyone shares one group scores 0, and an even mix of the six groups in the chart above scores the maximum, 83.3. Petroleum County is much less diverse than other US counties, more diverse than 2% of them. Within Petroleum County's proper boundaries, the most diverse area is central Petroleum County, and the least diverse areas are in north Petroleum County.

Source: BestNeighborhood calculations from the U.S. Census Bureau, American Community Survey (ACS) 2020-2024 5-year estimates (race and Hispanic origin); proprietary data mapping and analysis. Special thanks to the University of Virginia.

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