In 2020, Treasure County, MT had a population of 614 people with a median age of 57.8 and a median household income of $44,671. Between 2019 and 2020 the population of Treasure County, MT declined from 668 to 614, a −8.08% decrease and its median household income grew from $43,047 to $44,671, a 3.77% increase.
The 5 largest ethnic groups in Treasure County, MT are White (Non-Hispanic) (98.7%), Asian (Non-Hispanic) (0.814%), White (Hispanic) (0.326%), American Indian & Alaska Native (Non-Hispanic) (0.163%), and Black or African American (Non-Hispanic) (0%).
None of the households in Treasure County, MT reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Treasure County, MT are U.S. citizens.
In 2020, the median property value in Treasure County, MT was $161,800, and the homeownership rate was 71.5%.
Most people in Treasure County, MT drove alone to work, and the average commute time was 17.4 minutes. The average car ownership in Treasure County, MT was 2 cars per household.