910 Avenue C (between 2nd Street and 3rd Street)
281-394-8400 (after-hours information)
Monday – Friday, 8:00 a.m. – 5:00 p.m.
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 call either Harris County at 713-439-6260 or Fort Bend County Engineering at 281-633-7500.