For the south-western Georgia
county, see
Decatur County, Georgia. Decatur is a city in, and
county seat of,
DeKalb County,
Georgia,
United States. With a population of only 18,147 in the 2000 census, the city is sometimes assumed to be larger since multiple zip codes in unincorporated DeKalb County bear the Decatur name. A suburb of
Atlanta, and part of the
Atlanta Metropolitan Area, Decatur's public transportation is served by
MARTA. The city's motto, inscribed on the city seal, reads "A city of homes, churches, and schools."
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