Hyder is a census-designated place in Prince of Wales–Hyder Census Area, Alaska, United States. The population was 48 at the 2020 census, down from 87 in 2010. Hyder is accessible by road only from Stewart, British Columbia. It is popular with motorists wishing to visit Alaska without driving the length of the Alaska Highway. Hyder has no direct access …Hyder is a census-designated place in Prince of Wales–Hyder Census Area, Alaska, United States. The population was 48 at the 2020 census, down from 87 in 2010. Hyder is accessible by road only from Stewart, British Columbia. It is popular with motorists wishing to visit Alaska without driving the length of the Alaska Highway. Hyder has no direct access to any Alaskan road. It is the southernmost community in the state that can be reached via car. Hyder is Alaska's easternmost community.