Jefferson County, Montana

Total Population: 12,501

County Seat: Boulder

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Median Home Value

$408,000

Owner-occupied units

Median Household Income

$76,576

Across all households

Median Age

47.3 yrs

Across all residents

Bachelor's Degree+

32.7%

Adults 25 and older

Nearby Counties

Demographics

14 fields

Racial & Ethnic Composition

White (Non-Hispanic)91.3%
Two or More Races4.2%
Hispanic or Latino2.7%
Am. Indian / Alaska Native1.2%
Asian (Non-Hispanic)0.4%
Black (Non-Hispanic)0.1%

Under 18 Years

20.2%

65 Years and Over

22.8%

Male

50.7%

Female

49.3%

U.S. Citizens (18+)

98.8%

No Health Insurance

5.1%

Education

3 fields

High School Graduate or Higher (25+)

94.0%

Bachelor's Degree or Higher (25+)

32.7%

Enrolled in College (18+)

3.9%

Economics

6 fields

Median Household Income

$76,576

Mean Household Income

$107,580

Per Capita Income

$43,037

Unemployment Rate (16+)

In Labor Force (19–64)

74.2%

SNAP / Food Stamps

6.3%

Housing & Households

13 fields

Median Home Value

$408,000

Median Rent

$886/mo

Total Housing Units

5,388

Owner-Occupied

83.1%

Renter-Occupied

16.9%

Vacancy Rate

9.2%

Married Couple Households

66.1%

Cohabiting Couple Households

4.5%

Male Householder, No Partner

14.7%

Female Householder, No Partner

14.8%

Average Household Size

2.50

Broadband Internet Access

89.4%

Housing Built Since 2010

13.4%

Source: U.S. Census Bureau, American Community Survey 2023 5-Year Estimates. County FIPS 30043.