Actually, the highest point in Florida is 345 ft above. Mt Britton near the Alabama boarder.
I live about 14 ft above sea level in coastal Georgia for now. Have noted no rise on the beach road that will flood during storms, but, hardly ever otherwise. At high tide it’s about 1 foot above the water level.
Soon, we plan on selling out and buying a sailboat, living in a local marina. I’ll be AT sea level then and I’ll keep track.
I live in Florida - my backyard ends at a saltwater stream... high tides and low have been the same for 30 years... no change I can see.