I see 8 rv parks in the Freeport area.
In Google, search for Freeport, TX. Click on the map. In the Google search pane type in RV Park and search. The map will be populated with RV Parks.
You can also search for Campgrounds.
Unfortunately you will also get some Motels, Hotels, and a few others that have their META Data set to find their web site even though they are not a camp ground, but it will give you a good idea of what is in the area. Then research the reviews.
Wayne MSGT USMC (Ret) & Earlene (CinCHouse) RVM14
Lexi - Goldendoodle
2015 Winnebago Tour 42QD
It is what it is, and then it is what you make of it.