Washington borders the Canadian province of British Columbia.
If you look on a map you will see that Oregon and Washington are bordering each other
Maryland and Virginia are the bordering states of Washington, D.C.
Washington DC is bounded on all sides and in all directions by territory of the United States of America (USA).
The states that border Oregon are, California to the South, Washington State to the North and Idaho to the East.
Washington, Florida, South Carolina, and Rhode Island.
British Columbia.
The State of Washington is in the US northwest, on the Pacific coast and bordering Canada. The City of Washington (the Federal Capitol) is in the District of Columbia, on the Atlantic coast between the State of Maryland and the Commonwealth of Virginia.
Maryland and Virginia are located in the northern portion of the Southeastern United States, both bordering Washington, D.C.
Liechtenstein is the country north of Italy, though not bordering but close, that is smaller than Washington, D.C.; it covers an area of 160 km2 while Washington, D.C. covers an area of 177 km2.
Washington is bordered by Oregon and Idaho.
Oregon and Washington are on the Pacific coast north of California. Alaska also is north of California bordering the Arctic and Pacific oceans and Canada.