States may be divided in a number of ways. Geographically they may be divided by landmarks such as bodies of water. States may also be divided along the lines of latitude and longitude. Climate, language, culture, and population are other ways a state may be divided.
The whole country is divided into states (there are 50), the states can be divided into counties (3,143, not to be confused with countries), counties can be divided into townships depending on the state