Maybe, but generally not for a first or even second DWI or other intoxication offense. However, if someone, including yourself, was seriously injured, then prison is a real possibility in most Texas jurisdictions. Unless someone was seriously injured or killed, your biggest concern should be for your criminal history. A DWI conviction will affect your insurance, cost thousands of dollars in DPS surcharges, may result in a difficult period of probation, may cause you to lose your driver’s license, and can impact your credit. These things can be a bigger problem than the unpleasant food and surly staff in the county jail.