County Seat - Function

Function

Counties in the United States function similarly to those in the United Kingdom and Canada, acting as administrative subdivisions of a state. They have no sovereign jurisdiction of their own, although some have authority to enact and enforce municipal ordinances. Counties administer state or provincial law at the local level as part of the decentralization of state/provincial authority. In many U.S. states, state government is further decentralized by dividing counties into civil townships, to provide local government services to residents of the county who do not live in incorporated cities or towns.

A county seat is usually, but not always, an incorporated municipality. The exceptions include, but are not limited to, the county seats of counties that have no incorporated municipalities within their borders, such as Arlington County, Virginia and Howard County, Maryland. (Ellicott City, the county seat of Howard County, is the largest unincorporated county seat in the United States, followed by Towson, the county seat of Baltimore County, Maryland.) The county courthouse and county administration are usually located in the county seat, but some functions may also be conducted in other parts of the county, especially if it is geographically large.