Marshall County, Indiana Demographics 2026

Population Overview

Marshall County is located in Indiana with a total population of 46,284. It is the 32nd most populous county out of 92 in Indiana. The county encompasses 7 Census-designated places.

Age Demographics

The median age in Marshall County is 39.8 years. This is 4% higher than the state median of 38.1 years.

Economy, Income & Housing

The median household income in Marshall County is $71,808. This is about the same as the state median of $71,957. It is also 11% lower than the national median of $80,734. The poverty rate stands at 11.7%. This is 5% lower than the state poverty rate of 12.3%. The unemployment rate is 2.6%. This is 40% lower than the state rate of 4.3%. The median home value is $204,900. Housing costs are 6% lower than the state median of $218,200. With a home-value-to-income ratio of just 2.9x, Marshall County is one of the most affordable housing markets in the area. 76.4% of occupied housing units are owner-occupied. This homeownership rate is 8% higher than the state average of 70.5%.

Race & Ethnicity

The largest racial or ethnic group in Marshall County is White (non-Hispanic), making up 84.9% of the population. Hispanic or Latino residents account for 11.9%. The Black or African American population (0.6%) is well below the state average of 9.1%. The Asian population (0.6%) is well below the state average of 2.6%.

Education

20.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 29% lower than the state rate of 29.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 85.5%.

Data Sources & Methodology

All figures for Marshall County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Indiana and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.