Stillwater County, MT — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
9,052
Male
4,543
50.2%
Female
4,509
49.8%
Median Age
47.4 yrs
Avg Household Size
2.3
Foreign Born
1.1%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher21.7%
High School or Higher45.9%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
9.1%
Disability
0.0%
Non-English Home
5.0%
Married
51.9%
Stillwater County, MT has a population of 9,052 according to 2023 Census Bureau estimates. The median age is 47.4 years. The largest racial or ethnic group is White at 93.3% of the population. 21.7% of residents hold a bachelor's degree or higher. 1.1% of residents are foreign-born.