South Texas has a variety of gangs, including prison gangs and street gangs like the 

Texas Syndicate, the Bandidos MC, and the Puro Tango Blast, which has regional chapters such as Corpitos in Corpus Christi and Vallucos in the Rio Grande Valley. Other groups with a presence in South Texas include the Aryan Brotherhood of Texas and various cartel-affiliated gangs. 

Major gangs in South Texas

• Puro Tango Blast: A large, umbrella term for numerous Texas gangs. Chapters are regionally based, with groups in the Rio Grande Valley (Vallucos) and Corpus Christi (Corpitos) forming their own chapters.
• Texas Syndicate: A prison gang founded in 1978, with a significant presence in Texas, involved in activities like drug trafficking and extortion.
• Bandidos MC: A motorcycle club identified as a major international gang.
• Aryan Brotherhood of Texas: A white supremacist prison gang with activities in Texas, which has been targeted by law enforcement crackdowns.
• Cartel-affiliated gangs: Groups like the Barrio Azteca and the Beltrán-Leyva Organization have a presence in South Texas due to its proximity to Mexico. 

Law enforcement efforts

• Law enforcement agencies actively monitor and conduct operations against these gangs.
• Multi-agency task forces, such as the one coordinated by the Texas Anti-Gang Center, have targeted gangs like the Aryan Brotherhood of Texas, resulting in numerous arrests and the seizure of illegal narcotics and firearms.