It's difficult to give a single, definitive answer to how wide the Florida peninsula is because it's not a perfectly rectangular shape. The width varies significantly depending on where you measure it.

Here are some examples:

* At its widest point: The Florida peninsula is about 100 miles (160 km) wide at the northern part of the state, near Tallahassee.

* At its narrowest point: The peninsula is about 35 miles (56 km) wide at the "neck" of the state, near the city of Tampa.

Therefore, you can say the Florida peninsula is generally between 35 and 100 miles (56 and 160 km) wide.