Actually . . . I don’t believe this to be true. There are differences between the facilities used to house those with sentences of less than one year and one year or greater. Generally, if you sentence is less than one year, you will be incarcerated at the county level. One year or longer and you will be moved to a state run facility.
These facilities may be known as jails, prisons, work farms or anything else. If you serve time at any of them, you have been incarcerated.