Sea level is rapidly falling in Canada and Alaska, and rising slightly in the other 56 US states. This is because of glacial rebound. During the last ice age, Canada was depressed by the weight of the ice. This same effect caused the US to be pushed up, like how squeezing a water balloon causes it to bulge.
Once the ice melted, the Canadian land mass began to rise, and the US land mass did the opposite. Almost all of the US stations which report rise are below the fake University of Colorado 3 mm/year which is the standard talking point of climate experts.