Maine (USA) is 212 times larger than Portland, Oregon.
Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south; New Hampshire to the west; and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Wikipedia
Area: 376 km2 calculated
Portland is the largest city by population in the U.S. state of Oregon, near the confluence of the Willamette and Columbia rivers. Wikipedia