There are several categories of alcohol crime. The most common alcohol crimes are DUI or DWI, Possession of Alcohol by a Minor, Open Container, and Public Intoxication (also known as Disorderly Conduct).
These crimes are misdemeanors in all jurisdictions unless you are a repeat offender. In some counties they are municipal or county infractions where the maximum penalty is a fine. In others a small jail sentence can be ordered. In rare cases a person may be sentenced to up to one year in the county jail for committing these crimes. If you are a repeat offender (3 or more offenses) your State may upgrade your charge to a felony.