District Contact Information
Harris County Municipal Utility District No. 503 / Attorney
c/o Allen Boone Humphries Robinson LLP
3200 Southwest Freeway, Suite 2600, Houston, Texas 77027
(713) 860-6400
har503@txdistricts.info
To report a water service outage or problem 24/7, please contact Harris County MUD 503’s operator, Inframark at (832) 467-1599.
We are happy to answer any questions that you may have, which you may submit by completing the information below. We aim to respond in a timely manner. In the meantime, please look over the website for useful information pertaining to Harris County MUD 503.
Send Us a Message
Requests for Public Information
Requests for public information must be submitted to the District by one of the approved methods and addresses listed below:
- By mail: Harris County Municipal Utility District No. 503
c/o Allen Boone Humphries Robinson LLP
3200 Southwest Freeway, Suite 2600, Houston, Texas 77027 - By e-mail: har503@txdistricts.info
- In person: Same as mailing address.
- By electronic transmission through the District’s website contact form.