Marshall County, Oklahoma Demographics 2026

Population Overview

Marshall County is located in Oklahoma with a total population of 15,628. It is the 44th most populous county out of 77 in Oklahoma.

Age Demographics

The median age in Marshall County is 42.0 years. This is 14% higher than the state median of 36.9 years.

Economy, Income & Housing

The median household income in Marshall County is $56,495. This is 11% lower than the state median of $63,603. Compared to the national median of $78,538, household income here is 28% lower. The poverty rate stands at 16.5%. This is 8% higher than the state poverty rate of 15.3%. The unemployment rate is 5.4%. This is 9% higher than the state rate of 4.9%. The median home value is $139,700. Housing costs are 25% lower than the state median of $185,900. With a home-value-to-income ratio of just 2.5x, Marshall County is one of the most affordable housing markets in the area. 79.6% of occupied housing units are owner-occupied. This homeownership rate is 21% higher than the state average of 65.8%.

Race & Ethnicity

The largest racial or ethnic group in Marshall County is White (non-Hispanic), making up 63.6% of the population. Hispanic or Latino residents account for 17.5%. The Black or African American population (0.9%) is well below the state average of 6.9%. The Asian population (0.3%) is well below the state average of 2.3%.

Education

16.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% lower than the state rate of 27.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 84.7%.