The City of Duluth prides itself on its ability to accommodate a growing, diverse population in Metropolitan Atlanta while maintaining its small-town charm and sense of community.
It is a suburb of Atlanta. As of the 2010 census, Duluth had a population of 26,600, and the U.S. Census Bureau estimated the population to be 29,609 as of 2019.
Duluth is located north of Interstate 85. It is home to Gwinnett Place Mall, the Gwinnett Civic and Cultural Center, Infinite Energy Center, Hudgens Center for the Arts, and the Red Clay Theater. It is also home to Gwinnett Medical Center–Duluth, an 81-bed hospital constructed in 2006, as well as GMC’s Glancy Campus, a 30-bed facility located near downtown. The agricultural manufacturer AGCO is based in Duluth.
Forbes ranked Duluth 26th in “America’s Best Places to Move” in 2009, while BusinessWeek named it the “Best Affordable Suburb in Georgia” in 2010.
Duluth is located in the northeastern section of the Atlanta metropolitan area. Approximately 25 mi (40 km) from Downtown Atlanta, the city lies in the west-central section of Gwinnett County, bounded to the north by the Chattahoochee River (which also acts as the county line), northeast by Suwanee, south by unincorporated land, and west by Berkeley Lake.
Unincorporated portions of Forsyth County use a Duluth ZIP code despite being outside Duluth city limits in a different county. A significant part of the nearby city of Johns Creek in Fulton County shares at least one ZIP code with Duluth.
Duluth has a humid subtropical climate (Cfa.) The monthly averages range from 41.0 °F in January to 78.3° in July.  The local hardiness zone is 7b.
As of the census of 2010, there were 26,600 people, 10,555 households, and 6,872 families residing in the city. The population density was 2,620 people per square mile (1,011/km2). There were 11,313 housing units at an average density of 1,114 per square mile (397.1/km2). The racial makeup of the city was 48.7% White, 20.2% African American, 0.4% Native American, 22.3% Asian, 0.1% Pacific Islander, 5.2% from other races, and 3.1% from two or more races. Hispanic or Latino of any race were 14.0% of the population.
Population in 2017: 29,463 (100% urban, 0% rural). Population change since 2000: +33.2% Males: 13,477 (45.7%) Females: 15,986 (54.3%) Median resident age: 37.4 years Georgia median age: 36.8 years
There were 10,555 households, out of which 33.9% had children under the age of 18 living with them, 46.6% were married couples living together, 14.1% had a female householder with no husband present, and 34.9% were non-families. 28.4% of all households were made up of individuals, and 5.0% had someone living alone who was 65 years of age or older. The average household size was 2.52 and the average family size was 3.10.