Sully County, SD — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
1,481
Male
815
55.0%
Female
666
45.0%
Median Age
51.4 yrs
Avg Household Size
2.4
Foreign Born
4.3%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher15.6%
High School or Higher44.8%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
3.4%
Disability
0.0%
Non-English Home
2.8%
Married
50.2%
Sully County, SD has a population of 1,481 according to 2023 Census Bureau estimates. The median age is 51.4 years. The largest racial or ethnic group is White at 92.5% of the population. 15.6% of residents hold a bachelor's degree or higher. 4.3% of residents are foreign-born.