Avondale Estates is a City in Dekalb County, Georgia with 2858 residents. The City is known for its close-knit community, beautiful setting and diverse architectural styles. The first Waffle House, which opened its doors Labor Day weekend of 1955, is now a museum. Community amenities for residents include beautiful Lake Avondale, the Community Club House, tennis courts, and a swimming pool. Avondale has 194 businesses.