What is the capital city of Washington State?

The capital city of Washington State is Olympia. It was designated as the state capital in 1853 when Washington became a territory and later retained this status when Washington achieved statehood in 1889. Olympia is located in the western part of the state and serves as the administrative center of government, hosting the state legislature and the governor's office.

Seattle, while being the largest city in Washington and an important cultural and economic hub, is not the state capital. Tacoma and Spokane are also significant cities within the state, contributing to the state's economy and culture, but they do not hold the status of being the capital.