Fort Bend Waller County MUD#3 Drainage District Fort Bend Waller County MUD#3 Visit Website 3200 Southwest Fwy., Ste. 2600 Houston, TX 77027 (979) 665-2750 About Map About Municipal Utilities District serving the Young Ranch Community located in the City of Katy. What's Nearby? Distance: 5 10 15 20 25 50 mi.