Jamaica is about 89 times bigger than Boston.

Boston is approximately 124 sq km, while Jamaica is approximately 10,991 sq km, making Jamaica 8,764% larger than Boston.
Tip: This to-scale comparison of Boston vs. Jamaica 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.