There are three Chelseas in New York. All are pretty close to the waterfront, which puts them under 40 feet above sea level.
110 metres above sea level
Oxford is 129m above sea level
It is 781 feet above sea level.
It is 544 feet above sea level.
325 feet above sea level.
Buckingham, Florida is approximately 30 feet above sea level.
500 ft above sea level
Part of it is at sea level. The highest point is 18.04 ft above sea level.
Key West is 18 feet above sea level.
Haverhill, Massachusetts is approximately 150 feet above sea level.
Fredericksburg, Virginia is approximately 36 feet above sea level.
0 to 12 m above sea level (it is just on the shores of the Caribbean Sea).