Atlanta is about 55 times smaller than New Jersey.

New Jersey is approximately 19,211 sq km, while Atlanta (map shows its 114 named neighbourhoods; the area covers the whole city) is approximately 350 sq km, making Atlanta 1.82% the size of New Jersey.
Tip: This to-scale comparison of New Jersey vs. Atlanta uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.