Dacula is a city in Gwinnett County, Georgia, United States, located approximately 37 miles (60 km) northeast of Atlanta. The population as of the 2010 census was 4,442, and the U.S. Census Bureau estimated the population to be 6,255 as of 2018.

Gwinnett County is located in the north central portion of the U.S. state of Georgia. It forms part of the Atlanta metropolitan area, being located about 9 miles (14 km) northeast of Atlanta city limits. In 2020, the population was 957,062, making it the second-most populous county in Georgia. Its county seat is Lawrenceville. The county is named for Button Gwinnett, one of the signatories of the Declaration of Independence.