Sheridan County, Montana Demographics 2026

Population Overview

Sheridan County is located in Montana with a total population of 3,677. It is the 40th most populous county out of 56 in Montana.

Age Demographics

The median age in Sheridan County is 44.7 years. This is 11% higher than the state median of 40.2 years. 10.6% 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 Sheridan County is $63,654. This is 9% lower than the state median of $69,922. Compared to the national median of $78,538, household income here is 19% lower. The poverty rate stands at 10.0%. This is 17% lower than the state poverty rate of 12.0%. The unemployment rate is 2.5%. This is 35% lower than the state rate of 3.8%. The median home value is $111,600. Housing costs are 67% lower than the state median of $338,100. With a home-value-to-income ratio of just 1.8x, Sheridan County is one of the most affordable housing markets in the area. 76.6% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 69.4%.

Race & Ethnicity

Sheridan County has a predominantly White (non-Hispanic) population, comprising 89.2% of all residents. Hispanic or Latino residents account for 4.5%.

Education

24.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 29% lower 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 91.5%.