Poland is 26% larger than Oregon (USA).
Area: 312,685 km2 World Factbook
Population: 38,346,279 (July 2014) World Factbook
Poland, officially the Republic of Poland, is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine and Belarus to the east; and the Baltic Sea, Kaliningrad Oblast and Lithuania to the north. Wikipedia
Oregon is a state in the Pacific Northwest of the United States. It is bordered on its west by the Pacific Ocean, north by Washington, south by California, east by Idaho, and southeast by Nevada. The Columbia River delineates much of Oregon's northern boundary, the Snake River largely its eastern. Wikipedia