In 2019, Granite County, MT had a population of 3.31k people with a median age of 54.3 and a median household income of $49,881. Between 2018 and 2019 the population of Granite County, MT grew from 3,269 to 3,311, a 1.28% increase and its median household income grew from $48,958 to $49,881, a 1.89% increase.
The 5 largest ethnic groups in Granite County, MT are White (Non-Hispanic) (94.3%), Two+ (Non-Hispanic) (2.96%), White (Hispanic) (2.02%), American Indian & Alaska Native (Non-Hispanic) (0.362%), and Two+ (Hispanic) (0.242%). 0% of the households in Granite County, MT speak a non-English language at home as their primary language, and 99.8% of the residents in Granite County, MT are U.S. citizens.
In 2019, the median property value in Granite County, MT was $224,000, and the homeownership rate was 79.1%. Most people in Granite County, MT drove alone to work, and the average commute time was 19 minutes. The average car ownership in Granite County, MT was 2 cars per household.