According to the 2020 United States Census, Scottdale's population is approximately 10,698 residents. Over the last two decades, the area has seen noticeable population growth, driven primarily by the gentrification and redevelopment of the Atlanta suburbs.
The community is notably diverse. It features a rich ethnic composition that includes significant African American, White, Asian, and Hispanic populations, reflecting the broader demographic tapestry of DeKalb County. As new housing developments have sprouted up, the demographic profile has been shifting to include more young professionals, young families, and healthcare workers drawn to nearby medical centers. Income and education levels reflect a wide spectrum, historically leaning toward working-class households but increasingly shifting higher as new real estate developments attract higher-income earners.