Rank

127of 3,144

Union, South Dakota

Score 7.59 / 10· population 17,183

About 17,200 people live in Union, South Dakota. It ranks #127 of 3,144 counties for liberty, and #33 of 66 in South Dakota. The combined sales tax is 4.2%, lower than in 92% of counties. Property tax takes about 1.12% of a home's value each year, more than in 77% of counties. Local government employs a smaller share of working residents than in 83% of counties. The homicide rate is lower than in 69% of counties. Life expectancy is at least 80 years, longer than in 91% of counties. Air quality is better than in 72% of counties (a typical day's air quality index is 37), and flood and hurricane risk is lower than in 66% of counties. On this site's state scores, South Dakota gets 8.18 of 10 for economic freedom, based on the Fraser Institute's ranking, and 10 of 10 for gun rights.

v4 — beta, 30 October 2026, sourced values