Madison County, Montana Demographics 2026

Population Overview

Madison County is located in Montana with a total population of 8,975. It is the 25th most populous county out of 56 in Montana.

Age Demographics

The median age in Madison County is 54.1 years. This is 35% higher than the state median of 40.2 years. 10.9% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Madison County is $67,420. This is 4% lower than the state median of $69,922. Compared to the national median of $78,538, household income here is 14% lower. The poverty rate stands at 6.8%. This is 44% lower than the state poverty rate of 12.0%. The unemployment rate is 1.5%. This is 60% lower than the state rate of 3.8%. The median home value is $440,500. Housing costs are 30% higher than the state median of $338,100. The home-value-to-income ratio of 6.5x suggests that housing affordability is a significant concern for many residents. 80.6% of occupied housing units are owner-occupied. This homeownership rate is 16% higher than the state average of 69.4%.

Race & Ethnicity

Madison County has a predominantly White (non-Hispanic) population, comprising 91.5% of all residents. Hispanic or Latino residents account for 3.5%.

Education

34.3% of residents aged 25 and older hold a bachelor's degree or higher. This is about average than the state rate of 34.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.4%.