
Johnsonville
- County:
- Florence County
- County Seat:
- No
- Area (mi²):
- 2.116
- State:
- South Carolina
Johnsonville is a city located in Florence County, South Carolina. Johnsonville has a 2025 population of 1,360. Johnsonville is currently declining at a rate of -0.29% annually and its population has decreased by -1.38% since the most recent census, which recorded a population of 1,379 in 2020.
The average household income in Johnsonville is $66,600 with a poverty rate of 26.9%. The median age in Johnsonville is 34.9 years: 34.4 years for males, and 35 years for females.