District 1, the northernmost district, was almost untouched; District 3 absorbed some new parcels north of Chamblee Tucker Road, which were in District 2; and the recently formed District 4 expanded to include more of Buford Highway. There is only a 1% population difference between the most and least populous districts.
Chamblee is a rarity in metro Atlanta, where the council districts only limit who can run for city office — not who votes. Residents vote for all council seats regardless of which district they call home. The five-member council consists of one representative from each district plus an at-large representative, who can live anywhere in the city.
Redrawing council districts after a Census update is not uncommon. DeKalb County and several of its cities, including Brookhaven and Doraville, had to redraw their district lines due to uneven population shifts.