It is composed of sixteen dioceses in the nine states of Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Utah, and Washington.
The province encompasses more than a third of the land mass of the United States, and nearly twenty percent of the country's population.
Because of its sheer size, the province claims to contain the most demographically diverse population in the world.
Gretchen Rehberg of the Diocese of Spokane serves as President and Rev.
Tom Sramek Jr. of the Diocese of Oregon serves as Vice President.