Kissimmee Prairie Preserve appears above, an excellent amateur astronomer friendly Florida dark sky site (just noting that it's not in Kissimmee Florida, but SouthWest of Yeehaw Junction.)
FLORIDA DARK SKY SITES
The image below is cropped from an image featured in a 2016 science paper The New World Atlas of Artificial Night Sky Brightness. White represents the brightest light pollution areas, blue the darkest skies.
THIS FLORIDA LIGHT POLLUTION/DARK SKY MAP IS A MOSAIC FROM 2016 NASA/NOAA SUOMI/NPP SATELLITE IMAGES
THE MILKY WAY AS SEEN FROM A DARK SKY SITE USING ONLY A DSLR CAMERA, ONE 98 SECOND EXPOSURE, ON A TELESCOPE MOUNT.
This image is a composite assembled from data acquired by the NASA/NOAA Suomi NPP satellite in April and October 2012.
CLICK IMAGE OR HERE TO SEE BIG ORIGINAL VERSION
Visit the International Dark Sky Association's website to learn more about what we all can do about light pollution.
Some Known Florida Amateur Astronomy Locations:
Big Cypress National Preserve - off of Tamiami Trail East (also see Kirby Storter Roadside park below for another Big Cypress Preserve location.)
Chiefland Astronomy Village Many neighbors team up at this location to provide one of Florida's most amateur astronomer friendly locations, and they host monthly star parties, and usually a major public star party in the Fall.
Fakahatchee Strand Reserve (a.k.a. 'The Fack'), off I-75 - touch base with someone at Everglades Astronomical Society to see when they're out there or see their calendar.
Farrout Observatory, Dade City, FL "Where Tampa's Astronomers Cluster"
Kirby Storter Roadside Park - It's surrounded by the pristine Big Cypress Preserve. Here's a google maps link that shows it clearly too. See this 'street view' to see the site!!! Looks like it's free too.
Kissimmee Prairie Preserve -not in Kissimmee, listed as a Silver Tier Dark Sky Site by the International Dark-Sky Association in 2016, it has astro observing sites too, check with them for info here at this NEW LINK
Osceola National Forest site of NEFAS (open to all)
NEW LINK Biolab Boat Ramp Site near Canaveral National Seashore. Get permission before observing at this site (or you'll likely have a short session, as I did :^). This is a wonderful dark sky site.
Shired Island in Dixie FL
West Summerland Key/Camp Wesumkee - Site of the Winter Star Party
Withlacoochee River Park (county park with fees) - see http://www.stpeteastronomyclub.org/viewing.php for more info.