Marshall County, SD — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
4,355
Male
2,273
52.2%
Female
2,082
47.8%
Median Age
42.8 yrs
Avg Household Size
2.6
Foreign Born
2.2%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher15.1%
High School or Higher39.3%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.3%
Disability
0.0%
Non-English Home
5.3%
Married
46.3%
Marshall County, SD has a population of 4,355 according to 2023 Census Bureau estimates. The median age is 42.8 years. The largest racial or ethnic group is White at 86.1% of the population. 15.1% of residents hold a bachelor's degree or higher. 2.2% of residents are foreign-born.