Do I need to "winterize" or even turn off my sprinkler system in Texas?

Ugh… sorry you had to go through that, but that’s helpful info, thank you. I’m actually not sure if any equipment on my setup is above ground - I’m not very familiar with all the components of a sprinkler system. I know there’s a box in the ground along my front sidewalk (next to the master water shut-off valve box from the city) related to my sprinkler system, but not sure what it does. Guess it’s time to start poking around!