According to a study by a Sugar Daddy site (yeah I am just as surprised as you are), Houston has one of the top Sugar Daddy markets in the state of Texas.
There is approximately 1.85 Sugar Daddies for every 1,000 adult males according to the Sugar Daddy website Seekingarrangement.com
Houston is at least inside the top 20 list behind notable cities such as Atlanta, San Francisco and Los Angeles.
The full list for Houston is:
1. Downtown Houston
2. Boulevard Oaks
5. Shadow Oaks
8. River Oaks