Hashimoto's Thyroiditis. Also called Hashimoto's disease, Hashimoto's thyroiditis is an autoimmune disease, a disorder in which the immune system turns against the body's own tissues. In people with Hashimoto's, the immune system attacks the thyroid.
According to the U.S. Census Bureau, the county has a total area of 4,751 square miles (12,310 km 2), of which 4,058 square miles (10,510 km 2) is land and 693 square miles (1,790 km 2) (15%) is water.
Residents. Los Angeles County has the largest population of any county in the nation, exceeded by only eight states. More than 1 million of the 10.4 million residents live in unincorporated areas, whose municipal services are provided by the County. The other 9.3 million live in 88 cities, located throughout a 4,084-square-mile area.