San Marcos has multiple water providers: San Marcos Water and Crystal Clear Sud. This page provides information about San Marcos Water.

The City of San Marcos Water System, under the City Department of Water-Wastewater Utilities, provides water for about 67,468 residents living in the area of San Marcos, Texas. Established in 1851, the City of San Marcos Water currently obtains its supply from a combination of sources: groundwater from the Edwards Aquifer (South BFZ) and surface water from Canyon Lake.

San Marcos Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires San Marcos Water to assess local water quality each year and distribute a Consumer Confidence Water Quality Report. At WaterZen, we review these reports and make the information available, in a concise, straightforward, and easy-to-understand way.

B+

Good

WaterZen Rating

Lead levels in the drinking water of some cities across the United States are too high, potentially creating public-health issues for the people living in those areas.

What about San Marcos Water? How much lead is in your drinking water? And how do those levels compare to other cities in the state? We examined data from hundreds of cities across the nation to understand and grade your water quality.

As you can see, San Marcos Water received an above-average grade because the amounts of contaminants found in the water supply were lower than most other water providers we've analyzed.

San Marcos has multiple water providers: San Marcos Water and Crystal Clear Sud. This page provides water quality information for San Marcos Water.

B+

Good

WaterZen Rating

Lead levels in the drinking water of some cities across the United States are too high, potentially creating public-health issues for the people living in those areas.

As you can see, San Marcos Water received an above-average grade because the amounts of contaminants found in the water supply were lower than most other water providers we've analyzed.

San Marcos has multiple water providers: San Marcos Water and Crystal Clear Sud. This page provides water quality information for San Marcos Water.

Contact San Marcos Water Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
630 E Hopkins Street
San Marcos, Texas 78666

512-393-8010
waterwastewaterinfo@sanmarcostx.gov

Emergency (24 hours - broken water main or pipeline, etc.)
512-393-8010

Pay Your San Marcos Water Bill

Already have an account?

If you already have an account, you just need to login to the San Marcos Water site. San Marcos Water accepts credit cards, debit, and direct deposit. Click here to login.

Want to create a new account?

You can create a new account on the San Marcos Water website. Once you create the account, you can setup payment with credit, debit, or direct deposit. Click here to create an account.

Want to pay without an account?

You can make a one-time payment without creating an account. You will need to have your credit or debit card in order to make the one time payment. Click here to make a one time payment.

How to Start San Marcos Water Service

Starting Your Service

When you move to a new home in San Marcos, you'll most likely already have running water, but you'll still need to set up water service with the San Marcos Water. Luckily, San Marcos has made it pretty simple with the following online form. Starting service generally takes just two business days.

Click here to fill out a Start Service Form.

Stopping Your Service

When you move out of a home in San Marcos, you'll need to stop your water service with the San Marcos Water, so you don't keep getting billed. Simply fill out the following online form. Stopping service normally takes just two business days.

Click here to fill out a Stop Service Form.

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