Counties with two-word names

Here's one of those meaningless lists. Of the 39 counties in Washington, four require two words to identify them. Walla Walla, of course, using the same word twice. It's county seat, also Walla Walla, doubles even that, producing a remarkable "address": Walla Walla, Walla Walla, Washington.

• Grays Harbor
• Pend Oreille
• San Juan
• Walla Walla