Gaffney is a medium-sized city located in the state of South Carolina. With a population of 12,546 people and 12 associated neighborhoods, Gaffney is the 40th largest community in South Carolina.

The population of Gaffney overall has a level of education that is slightly above the US average for all US cities and towns of 21.84%. Of adults 25 and older in Gaffney, 23.08% have at least a bachelor's degree.

The per capita income in Gaffney in 2022 was $21,994, 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 $87,976 for a family of four. However, Gaffney contains both very wealthy and poor people as well.

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

The most common language spoken in Gaffney is English. Other important languages spoken here include Spanish and Langs. of India.