DWI Bail in Hays County: What Happens After a DWI Arrest in San Marcos

October 8, 2026 · Updated October 12, 2026

DWI bail in Hays County is set by a magistrate, by law no later than 48 hours after the arrest, and it can be posted as a cash bond, a surety bond or, if the magistrate allows it, a personal bond. A DWI arrest usually starts a second clock too: 15 days from the date the suspension notice is served to request a hearing on the driver's license suspension.

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How does DWI bail in Hays County work?

After a DWI arrest in Hays County, the person is generally booked into the Hays County Jail and must be taken before a magistrate no later than 48 hours after the arrest. The magistrate sets bail and any conditions of release. It can then be posted as a cash bond, a surety bond or, where the magistrate allows, a personal bond.

There is a second clock running that has nothing to do with bail. A DWI arrest usually starts a separate process to suspend the person’s driver’s license, and the deadline to ask for a hearing is short. Both are covered below.

How much is bail for a DWI in Hays County?

Texas has no set statewide bail amount for a DWI. In Hays County, as everywhere in the state, the magistrate decides case by case, using factors written into Texas law: the nature of the charge, the safety of the community, the person’s criminal history, any past failures to appear in court, and the person’s ability to make bail.

Bail is set case by case, so we are not going to quote a “typical” DWI bail amount. What we can tell you is what makes a DWI charge more serious, because a more serious charge generally means higher bail.

DWI charge levels in Texas

In Texas, a person is intoxicated if they do not have normal use of their mental or physical faculties because of alcohol or drugs, or if their alcohol concentration is 0.08 or more.

These are the base levels. The Penal Code raises some of them in listed circumstances, for example when the person hurt or killed is a peace officer, firefighter or emergency medical worker. The fines shown do not include a separate state fine of $3,000, $4,500 or $6,000 assessed on a DWI conviction.

Two more points. A first DWI with an open container of alcohol in the driver’s immediate possession carries a minimum of six days in jail. And for offenses on or after September 1, 2025, a DWI committed in an active school crossing zone is a state jail felony.

What happens in a particular case is a legal question, not one a bail bond company can answer.

What happens after a DWI arrest in San Marcos, step by step

1. The stop and the arrest. The officer asks for a breath or blood sample. Refusing, or giving a sample of 0.08 or more, starts the license suspension process described below. The officer usually serves a suspension notice on the spot; after a blood draw, DPS may mail it later.

2. Booking. People arrested for DWI in Hays County are generally booked into the Hays County Jail at 1307 Uhland Road in San Marcos. They are searched, fingerprinted and photographed, then held until they see a magistrate.

3. Magistration. By law this happens no later than 48 hours after the arrest. Hays County’s magistrates hold hearings seven days a week. The magistrate explains the charge and the person’s rights, then sets bail and conditions.

4. Posting bond. Cash bond, surety bond or personal bond. A first DWI is not on the list of charges that Texas law bars from a personal bond, but whether to grant one is the magistrate’s decision. In Hays County, pretrial officers at Judicial Services interview people in custody and make a recommendation.

5. Release. Once the bond is posted, the jail processes the release. The Hays County Jail says bonds are handled in the order received and that it cannot give a specific time.

6. Court. A misdemeanor DWI is heard in one of the Hays County Courts at Law. A felony DWI goes to a District Court. The bond paperwork states when and where to appear; later dates come from the court, and you can confirm them with the clerk or on the county’s public records portal.

Bond conditions that can come with a DWI

A magistrate can attach conditions to release. For DWI cases the main one is an ignition interlock, a device that will not let the vehicle start until the driver gives a clean breath sample.

Texas law requires the magistrate to order an interlock as a bond condition when the charge is:

• a second or later DWI
• DWI with a child passenger
• intoxication assault
• intoxication manslaughter

The magistrate can leave it off only by finding that it would not be in the best interest of justice. When it is ordered, the device has to be installed, at the defendant’s expense, before the 30th day after release, and the defendant may not drive a vehicle without one.

A first DWI is not on that mandatory list. A magistrate can still order alcohol monitoring as a condition. Hays County’s pretrial program uses ignition interlocks, portable alcohol monitors and ankle monitors that detect alcohol.

Breaking a bond condition can get the bond revoked and the person sent back to jail.

The 15-day driver’s license deadline

This catches many people off guard, because it is separate from the criminal case and separate from bail.

When a driver refuses a breath or blood test, or fails one, the Texas Department of Public Safety moves to suspend their license. It is called Administrative License Revocation, or ALR.

• You have 15 days from the date the suspension notice is served to request a hearing. DPS says a late request is denied. If the notice is mailed later, after a blood test result, DPS gives 20 days from the mailing date.
• If no hearing is requested, the suspension starts on the 40th day after the notice was served.
• A hearing request made on time puts the suspension on hold until an administrative law judge decides.

How long the suspension lasts, for an adult:

DPS charges a $125 reinstatement fee before the license is issued again.

One thing has changed that older articles get wrong. Since September 1, 2023, the officer no longer takes the license card and hands over a temporary driving permit. The driver receives a suspension notice, and the 15-day and 40-day clocks run from that notice.

Whether to request a hearing, and how, is a legal question a bail bond company cannot answer. The deadline is short.

DWI or DUI: what is the difference in Texas?

Texas law calls the adult offense DWI, driving while intoxicated. People say “DUI” to mean the same thing, and you will see both used.

For drivers under 21 the rule is stricter: it is illegal to drive with any detectable amount of alcohol, which is a lower bar than intoxication. That under-21 offense is the one often called DUI.

What a bail bond company can and cannot do in a DWI case

A bail bond company can explain the bond options, post a surety bond once bail is set, and tell you what the bond paperwork requires, such as court dates.

A bail bond company cannot give legal advice, cannot predict the outcome of the case, and under Texas law may not recommend or suggest a lawyer or law firm to a bond client. It also has no part in the driver’s license hearing.

What to do next

Find out whether bail has been set. The Hays County Jail’s bonding line is 512-393-7807, and our Hays County Jail inmate search guide shows how to look someone up. Write down the date the license suspension notice was served, because the 15 days run from it. If you want help posting a bond, call us. Our bail bonds service in San Marcos and Hays County is open 24 hours a day.

Related guides: how bail bonds work in Hays County and what a bail bond costs.

This page is general information, not legal advice, and it may not fit your situation. Bail law and local procedures change; the sources below show where each fact came from. Bobcat Bail Bonds is a bail bond company, not a law firm. We cannot give legal advice and we do not recommend lawyers.