No, not really. Katy is a town that used to be the first civilization west of Houston on I-10. It has mushroomed into a bedroom community and a lot of roads in the area will say, for example, "Katy-Cypress Road". That's because when it was built, it was the road between the town of Katy and the town of Cypress that has now been swallowed up by greater Houston.
Now, when you get to Galveston, you'll see a lot of things named "Moody". That's because that was the richest family in town for decades and they were philathropists. So you'll see Moody this and Moody that because so many things were named after one of the Moodys.
We were just south of Dallas in the Corsicana area. There are steets named Katy in several of the small towns around there.