
-2. Yakima, 4,296
-3. Chelan, 2,921
-4. Grant, 2,681
-5. Stevens, 2,478
-6. Lewis, 2,408
-7. Lincoln, 2,311
-8. Kittitas, 2,297
-9. Ferry, 2,204
10. Whitman, 2,159
Note: No, Okanogan isn't the largest county in the United States. I suppose a region in Alaska would qualify as the largest, but Alaska doesn't exactly have a comparable county concept. Among counties in the Lower 48, though, San Bernadino County, California is largest: 20, 105 square miles -- almost four times the size of Okanogan.