New Jersey is about 14 times smaller than Gabon.

Gabon is approximately 267,667 sq km, while New Jersey is approximately 19,211 sq km, making New Jersey 7.18% the size of Gabon. Meanwhile, the population of Gabon is ~2.3 million people (6.5 million more people live in New Jersey).
Tip: This to-scale comparison of Gabon vs. New Jersey uses the Mercator projection, which distorts the size of regions near the poles.