Florida
The Official Website has links to all the state parks in Florida.
Reservations can be made up until 12pm EST the day of through the website or the 1-800 number. After 12pm EST, you can only make reservations in person at the campground. The campground will not take reservations over the phone.
The day use fee is included in the camping fee. If you are not staying overnight, you will need to pay the day use fee and the fee varies by park. The day use fee is $6 per vehicle at most parks.
For any site that offers electric you will be charged a $7 utility fee. This is per night. There is some confusion among rangers I have talked to about this fee. Some say it is charged for all sites that offer electric, some say they don’t charge it for tent campers.
When booking online you will pay a $6.70 reservation fee. This is per park reservation, not per night. The reservation fee is waived if you book in person at the campground. You will also pay taxes.
The fees add up quickly. We booked a site that was $30 a night, but with the reservation fee, utility fee, and taxes it came out to $48.51 a night. This brings Florida state park campgrounds near the top of the list for most expensive state park campgrounds.
They do sell an annual park pass that allows entry into all Florida State Parks, but this is not needed if you have a camping reservation at that park.
Florida does have a lot of state parks that do not offer camping, so the annual pass may be worth it if you plan on visiting a lot of state parks.