Union is a somewhat small city located in the state of South Carolina. With a population of 7,988 people and six associated neighborhoods, Union is the 58th largest community in South Carolina.

As is often the case in a small city, Union doesn't have a public transportation system that people use for their commute.

The percentage of adults in Union with college degrees is slightly lower than the national average of 21.84% for all communities. 15.75% of adults in Union have a bachelor's degree or advanced degree.

The per capita income in Union in 2022 was $25,582, 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 $102,328 for a family of four. However, Union contains both very wealthy and poor people as well.

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

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