Utility BillingUtility Billing

Utility Billing

901 Avenue C (between 2nd Street and 3rd Street)
281-394-8400 (after-hours information)
Monday – Friday, 8:00 a.m. – 5:00 p.m.
email – ub@cityofkaty.com 

Welcome to the City of Katy

To help determine if your address is in the jurisdiction of the City of Katy,  please refer to the map before completing an application for service.  A Katy mailing address does NOT mean you are within the city limits of Katy.    If you are not within the city limits, your water is provided by a Municipal Utility District (MUD).

To determine which MUD district provides water to your address, please contact the Home Owners Association in your neighborhood or go to the TCEQ link and follow the steps below:

  • type your address, city
  • select the yellow notepad labeled District, in the drop down box choose MUD
  • on the map click on the word MUD and the information will open in a separate window


Residential Customers

  Commercial Customers
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