
TL;DR:
Understanding the difference between a jail vs detention center is essential when helping a friend or family member navigate the criminal justice or immigration system in San Diego. This guide explains how these facilities operate, where major jails are located, and what to expect if someone is being held before trial.
Readers will learn:
- The clear distinction between jails, detention centers, and prisons
- Where major San Diego County jails are located and who they house
- How immigration and juvenile detention centers function
- How long someone can stay in detention and why they might be placed there
- How bail bonds work and how they help people exit custody
There are several places across San Diego County where people arrested for a crime may be held before their trial (and during it, if they don’t get a San Diego bail bond). This guide offers useful information about these facilities and answers frequently asked questions about San Diego County detention facilities.
Does your friend or family member need help exiting a jail or detention center in or around San Diego? Bail Hotline can help them come home with 24/7 support for bail bonds in San Diego and across California. Reach out to our local San Diego office to get the process started.
Common Questions About San Diego Jails and Detention Centers
What’s the Difference Between a Detention Center and Jail?
Jails are typically holding facilities for adults recently arrested by city, county, or state law enforcement, as well as those awaiting trial or serving sentences of less than a year following a trial.
Detention facilities, as the University of Phoenix points out, are generally used to hold minors in the criminal justice system and, in a different context, people facing charges related to immigration laws.
It’s also worth noting that prisons are similar in the big picture to jails, although they are distinct in that they house people convicted of crimes that involve sentences of longer than one year.
In contexts that aren’t highly focused on technical definitions, you may hear jails referred to as detention centers and vice versa. For example, the San Diego County Sheriff uses the term “detention facility” to refer to some of its jails.
What are the Major Jails in San Diego County?
The San Diego County Sheriff’s Office operates seven jails and similar facilities across the county. These facilities are:
- San Diego Central Jail. This is the main intake point for men arrested in San Diego County. If a man is arrested by the county sheriff, it is likely, although not guaranteed, that they will be held here until their arraignment or transfer to another facility. This is usually the facility people are talking about if they mention the “downtown San Diego jail.”
- Las Colinas Detention and Reentry Facility. Las Colinas is the main intake point for women arrested in San Diego County. It also offers reentry services for incarcerated people.
- East Mesa Reentry Facility. This facility focuses on reentry services, offering inmates educational programs, job skills training, and work opportunities.
- George Bailey Detention Facility. The George Bailey facility is a maximum-security facility that includes significant housing for inmates with special management requirements and needs.
- Rocky Mountain Detention Facility. The Rocky Mountain facility is a maximum-security jail that was previously operated by the federal government and returned to local control in 2023.
- South Bay Detention Facility. This smaller jail does not book inmates and has two distinct populations of high-level and low-level incarcerated persons.
- Vista Detention Facility. This facility is the primary intake point for people arrested in northern San Diego County. It also offers services to address various medical and psychiatric needs for inmates and houses inmates in high-profile trials.
There is also an Immigration and Customs Enforcement (ICE) detention center in San Diego, the Otay Mesa Detention Center. This facility houses people accused of violating immigration laws, generally those who have been arrested in the greater San Diego area.

What is a detention center?
In its most specific definition, a detention center is a place where people accused of immigration-related crimes are held as their cases are decided. A juvenile detention center is an alternative to jail or prison used to house minors – generally people under the age of 18, although some inmates can be as old as 25.
A detention center can be used generally to mean a jail – a place where people are held when accused but not convicted of crimes, as well as people sentenced to less than a year of incarceration. It can also refer to a prison, where people sentenced to more than a year of incarceration are held.
How long can you stay in a detention center?
There is no universal limit on how long someone can remain in a detention center, whether the term refers to an immigration detention center or a jail in general. The length of stay depends on the legal process, the sentence if convicted, release eligibility, and more. In juvenile detention centers, the maximum age can range from 18 to 25, depending on the severity of the crime and other factors.
Why would someone go to a detention center?
Detention centers in the context of ICE and immigration-related charges are intended to house people suspected of breaking immigration laws. Young people, generally under age 18, are placed in juvenile detention centers as an alternative to prison or jail.
Are jails and detention centers the same?
A detention center can refer to a jail or a prison, but can also refer to a more specific type of holding facility for people accused of certain crimes. Immigration detention centers hold people accused of breaking immigration laws. Juvenile detention centers are intended to house minors and younger adults instead of placing them into standard jails or prisons.
How can I help a friend or loved one with a bail bond?
Bail bonds allow people in pre-trial holding – those accused but not convicted of a crime – to exit custody and return to their families and normal lives. Instead of remaining in jail, they can continue to work, see friends and family, and better prepare for their upcoming court appearances.
Bail bonds offer a useful alternative to personally posting the full amount of bail. Bail is eventually paid back by the court if the defendant meets all of their obligations, but it can be tied up for months or years until the case resolves. With bail bonds, you only pay 10% of the total amount of bail, and the bail bond agent handles the rest of the process.
Bail Bonds in San Diego and Across California
If your friend or loved one is in pre-trial holding in a correctional facility in Southern California or anywhere across the state, Bail Hotline can help. Our professional, experienced, and discreet staff are here to help 24/7. Reach out to our local San Diego office to get started!