In 2019, Sheridan County, MT had a population of 3.48k people with a median age of 46.3 and a median household income of $55,521. Between 2018 and 2019 the population of Sheridan County, MT declined from 3,574 to 3,483, a −2.55% decrease and its median household income grew from $54,321 to $55,521, a 2.21% increase.
The 5 largest ethnic groups in Sheridan County, MT are White (Non-Hispanic) (91.1%), Two+ (Non-Hispanic) (3.85%), White (Hispanic) (3.45%), American Indian & Alaska Native (Non-Hispanic) (1.03%), and Asian (Non-Hispanic) (0.258%). 0% of the households in Sheridan County, MT speak a non-English language at home as their primary language.
98.7% of the residents in Sheridan County, MT are U.S. citizens.
In 2019, the median property value in Sheridan County, MT was $127,500, and the homeownership rate was 78.8%. Most people in Sheridan County, MT drove alone to work, and the average commute time was 15.6 minutes. The average car ownership in Sheridan County, MT was 2 cars per household.