In 2018, Granite County, MT had a population of 3.27k people with a median age of 54.3 and a median household income of $48,958. Between 2017 and 2018 the population of Granite County, MT grew from 3,206 to 3,269, a 1.97% increase and its median household income declined from $49,063 to $48,958, a -0.214% decrease.
The 5 largest ethnic groups in Granite County, MT are White (Non-Hispanic) (95.7%), White (Hispanic) (2.14%), Two+ (Non-Hispanic) (1.28%), American Indian & Alaska Native (Non-Hispanic) (0.489%), and Black or African American (Non-Hispanic) (0.153%). 0% of the households in Granite County, MT speak a non-English language at home as their primary language, and 99.2% of the residents in Granite County, MT are U.S. citizens.
In 2018, the median property value in Granite County, MT was $216,500, and the homeownership rate was 72.4%. Most people in Granite County, MT drove alone to work, and the average commute time was 21.8 minutes. The average car ownership in Granite County, MT was 2 cars per household.