New Orleans is about 7 times bigger than Newark.

Newark (map shows its 20 named neighbourhoods; the area covers the whole city) is approximately 63 sq km, while New Orleans is approximately 439 sq km, making New Orleans 602% larger than Newark.
Tip: This to-scale comparison of Newark vs. New Orleans 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.