Johnsonville is a very small city located in the state of South Carolina. With a population of 1,367 people and two associated neighborhoods, Johnsonville is the 169th largest community in South Carolina.

Being a small city, Johnsonville does not have a public transit system used by locals to get to and from work.

In terms of college education, Johnsonville is somewhat better educated than the 21.84% who have a 4-year degree or higher in the typical US community: 25.92% of adults 25 and older in the city have at least a bachelor's degree.

The per capita income in Johnsonville in 2022 was $23,854, which is lower middle income relative to South Carolina, and low income relative to the rest of the US. This equates to an annual income of $95,416 for a family of four. However, Johnsonville contains both very wealthy and poor people as well.

Johnsonville is a very ethnically-diverse city. The people who call Johnsonville home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Johnsonville residents report their race to be White, followed by Black or African-American. Important ancestries of people in Johnsonville include English, Scots-Irish, Welsh, Irish, and German.

The most common language spoken in Johnsonville is English. Other important languages spoken here include Chinese and Italian.