Jackson is about 4.5 times smaller than Rome.

Rome is approximately 1,287 sq km, while Jackson (map shows its 125 named neighbourhoods; the area covers the whole city) is approximately 289 sq km, making Jackson 22.47% the size of Rome.
Tip: This to-scale comparison of Rome vs. Jackson 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.