Hey there! So, technically chickens are legal in Gwinnett County as of an ordinance passed last year. It's based on lot size. If you have a quarter acre, you can have 3 chickens, if you have half an acre, 5 chickens, and so on. Over 3 acres, no limit (but no roosters unless you are zoned in...
Lawrenceville doesn't allow "animal husbandry" unless zoned in agricultural, or agricultural residential areas. Sadly city law overrides county. Trying to get that changed though! Facebook group Chickens for Lawrenceville was just founded if you're interested in supporting this change :)
County, yes (Gwinnett changed their ordinances last year, so number of chickens allowed is based on lot size. Chickens must be contained, and no roosters). City, I couldn't tell you. Unfortunately a lot of cities have ordinances against chickens, and city overrules county law. It took me ages...
Last year, Gwinnett county, in which the city of Lawrenceville, Georgia is contained, changed their ordinances to allow backyard chickens in residential zoning with a handful of reasonable conditions regarding sanitation, number of birds per lot size, and no roosters.
However, the city of...