Lyman County, SD — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
3,717
Male
1,942
52.2%
Female
1,775
47.8%
Median Age
36.0 yrs
Avg Household Size
3.1
Foreign Born
0.9%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher15.8%
High School or Higher41.8%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
4.1%
Disability
0.0%
Non-English Home
5.6%
Married
31.8%
Lyman County, SD has a population of 3,717 according to 2023 Census Bureau estimates. The median age is 36.0 years. The largest racial or ethnic group is White at 57.4% of the population. 15.8% of residents hold a bachelor's degree or higher. 0.9% of residents are foreign-born.