
South Union township
- County:
- Sharp County
- County Seat:
- No
- Area (mi²):
- 30.835
- State:
- Arkansas
South Union township is located in Sharp County, Arkansas. South Union township has a 2025 population of 467. South Union township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in South Union township is $51,359 with a poverty rate of 2.36%. The median age in South Union township is 58.6 years: 50.7 years for males, and 59.5 years for females.