The jurisdiction of Ironworkers Local Union 135 covers the following Counties in Texas.

• Angelina
  
• Brazoria
  
• Chambers
  
• Galveston
  
• Hardin
  
• Jasper
  
• Jefferson
  
• Liberty
  
• Nacogdoches
  
• Newton
  
• Orange
  
• Polk
  
• Sabine
  
• San Augustine
  
• Trinity
  
• Tyler