Extreme Points of the United States (50 States)
|Northernmost point: Point Barrow, Alaska||71°23' N||156°29' W||2,507||4,034|
|Easternmost point: West Quoddy Head, Maine||44°49' N||66°57' W||1,788||2,997|
|Southernmost point: Ka Lae (South Cape), Hawaii||18°55' N||155°41' W||3,463||5,573|
|Westernmost point: Cape Wrangell, Alaska (Attu Island)||52°55' N||172°27' E||3,625||5,833|
1. From geographic center of United States (incl. Alaska and Hawaii), west of Castle Rock, S.D., 44°58' lat., 103°46' W long. If measured from the prime meridian in Greenwich, England, Cape Wrangell, Attu Island, Alaska, would be the easternmost point.