Okanogan County.
Washington DC is the capital city of the US. It does not have countries or cities.
The largest county by population is King. The largest in size is Okanogan, 5,268 square miles.
The largest county in Washington state by land area is Okanogan County. It covers an area of approximately 5,315 square miles and is known for its diverse landscapes, including mountains, forests, and rivers.
San Bernardino county is the largest county in California.
The largest size county that is located in the state of Hawaii is Hawaii county. The county is approximately 4028 square miles.
Okanogan County.
SIZE: The largest Minnesota county by size is St. Louis County (6,226 square miles). POPULATION: The largest Minnesota county by population is Hennepin County (population of 1,116,200).
Kossuth county
Hawaii County.
Maricopa is the largest in population. Coconino County is the largest in area and the County Seat is Flagstaff.
Pike County is the largest county in Kentucky when referring to land size. When referring to population Jefferson County (Louisville) is largest.
The largest is Nye County with 18,147 square miles.