How big is Idaho county Idaho?

8,502 sq mi (22,021 kmĀ²)
It is larger than the states of Rhode Island, Connecticut and Delaware. It is 125 square miles shy of being as large as all three states combined.
It is nearly as large as New Jersey, New Hampshire and Vermont.
It also has 15,000 residents. The "big city" in Idaho County is Grangeville, which has 3100 residents.