- Free modem and anti-virus software
- No contracts and unlimited data
- Bundle with TV to save more
- Speeds up to 7 Gbps**
Electricity
Top 4 Electric Providers in San Marcos
San Marcos Electric Utility
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
Pedernales Electric Cooperative
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
Crystal Clear Special Utility District
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
Rates accurate as of October 26, 2026
EnergySage
Save up to 20%! Get custom solar quotes online, no phone calls required!
- Service
- Home solar
- Quotes
- Free
Natural Gas
Natural Gas Providers in San Marcos
Rates accurate as of October 26, 2026
Internet
Top 10 Internet Providers in San Marcos
Spectrum
Most Affordable Plans
- Speeds up to
- 7 Gbps**
- Type
- Cable & Fiber
- Data cap
- Unlimited
- Availability
- 91.63%
- Speeds up to
- 5 Gbps
- Type
- Cable
- Data cap
- 1 TB
- Availability
- 50.73%
Starlink
Internet Anywhere You Are
- Speeds up to
- 400 Mbps
- Type
- Satellite
- Data cap
- Unlimited
- Availability
- 100%
Verizon 5G Home Internet
Wireless Internet Great for Renters
- Speeds up to
- 300 Mbps
- Type
- 5G
- Data cap
- Unlimited
- Availability
- 100%
T-Mobile 5G Home Internet
Wireless Internet
- Speeds up to
- 498 Mbps
- Type
- 5G
- Data cap
- 1.2 TB
- Availability
- 100%
AT&T Air
Wireless Internet
- Speeds up to
- 300 Mbps
- Type
- 5G
- Data cap
- Unlimited
- Availability
- 100%
- Speeds up to
- 150 Mbps
- Type
- Satellite
- Data cap
- 150-850 GB
- Availability
- 100%
- Speeds up to
- Varies
- Type
- Fiber, Cable, 5G, & Satellite
- Data cap
- Varies
- Availability
- 95%
From
$39.95
/mo
Call 866-452-1131
- Speeds up to
- 2 Gbps
- Type
- Fiber
- Data cap
- 1 TB
- Availability
- 45.53%
AT&T Fiber
Get a $200 Reward Card*
- Speeds up to
- 5 Gbps
- Type
- Fiber
- Data cap
- Unlimited
- Availability
- 28.85%
*Not all internet providers and speeds are available at every address.
**7 Gbps speed is available in select markets.
Water & Sewage Providers in San Marcos
CITY OF SAN MARCOS
630 E HOPKINS ST SAN MARCOS, TX 78666-6314
CRYSTAL CLEAR SUD
2370 FM 1979 SAN MARCOS, TX 78666-2100
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Top 2 Trash and Recycling Providers in San Marcos
Republic Services
Waste Management
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Utilities Summary for San Marcos, TX
| Electric Companies: | 4 |
| Natural Gas Companies: | 1 |
| Water & Sewage Providers: | 2 |
| Garbage, Trash & Recycling Providers: | 2 |
| Municipal Electricity: | Yes |
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San Marcos Internet Connectivity
Broadband Availability
97.9985%
Percent of population with access to speeds of 100 Mbps download and 20 Mbps upload
1 Gig Availability
45.4762%
Percent of population with access to download speeds of 1 Gbps
Fiber Availability
39.1009%
Percent of population with access to fiber Internet
Fastest Internet Providers in San Marcos
| Provider | Connection Type | Download Speed |
|---|---|---|
| Spectrum | Cable & Fiber | 7 Gbps |
| Astound Broadband | Cable | 5 Gbps |
| Starlink | Satellite | 400 Mbps |
| Verizon 5G Home Internet | 5G | 300 Mbps |
| T-Mobile 5G Home Internet | 5G | 498 Mbps |
| AT&T Air | 5G | 300 Mbps |
| Viasat | Satellite | 150 Mbps |
| Earthlink | Fiber, Cable, 5G, & Satellite | Varies |
| Brightspeed | Fiber | 2 Gbps |
| AT&T Fiber | Fiber | 5 Gbps |
*Not all speeds available in all areas
San Marcos Drinking Water Quality Information
Clean drinking water is essential for maintaining good health and overall well-being. Safe, contaminant-free water helps prevent the spread of diseases, supports proper hydration, and ensures the body's vital functions operate smoothly.
San Marcos's Primary Drinking Water Source: Surface Water
Drinking Water Contaminant Levels
Lead
3.4 ppb
Health standard: 0 ppb
Legal limit: 15 ppb
Legal limit: 15 ppb
Chlorate
173.3667 ppb
Health standard: 210 ppb
Legal limit: No Limit Set
Legal limit: No Limit Set
Chromium (total)
0.2792 ppb
Health standard: 100 ppb
Legal limit: 100 ppb
Legal limit: 100 ppb
Chromium (hexavalent)
0.0873 ppb
Health standard: 0.02 ppb
Legal limit: No Limit Set
Legal limit: No Limit Set
Haloacetic Acids (HAA5)
8.5024 ppb
Health standard: 0.1 ppb
Legal limit: 60 ppb
Legal limit: 60 ppb
Six Brominated Haloacetic Acids
14.6084 ppb
Health standard: Not Set
Legal limit: No Limit Set
Legal limit: No Limit Set
Haloacetic Acids (HAA9)
19.4052 ppb
Health standard: .06 ppb
Legal limit: No Limit Set
Legal limit: No Limit Set
Lithium
10.48 ppb
Health standard: 9 ppb
Legal limit: No Limit Set
Legal limit: No Limit Set
Manganese
1.1857 ppb
Health standard: 100 ppb
Legal limit: No Limit Set
Legal limit: No Limit Set
Molybdenum
1.1125 ppb
Health standard: 40 ppb
Legal limit: No Limit Set
Legal limit: No Limit Set
Perfluorobutanoic Acid (PFBA)
0.0101 ppb
Health standard: 7 ppb
Legal limit: No Limit Set
Legal limit: No Limit Set
Perfluorohexane Sulfonate (PFHXS)
0.0031 ppb
Health standard: 0.01 ppb
Legal limit: 0.01 ppb
Legal limit: 0.01 ppb
Perfluoropentanoic Acid
0.0039 ppb
Health standard: Not Set
Legal limit: No Limit Set
Legal limit: No Limit Set
Strontium
541.0417 ppb
Health standard: 1.5 ppm
Legal limit: No Limit Set
Legal limit: No Limit Set
Vanadium
2.275 ppb
Health standard: 21 ppb
Legal limit: No Limit Set
Legal limit: No Limit Set
Contaminant Data Based on Averages of SDWA LCR Samples and UCMR 3, UCMR 4, and UCMR 5 Samples. Health standards are based on guidelines set by the EPA, WHO, or state health departments. Health standards are based on possible negative health side effects if that level of contaminant is exceeded. Legal limits are set and enforced by EPA regulations.
Utilities in Nearby Cities
Frequently Asked Questions
Can I choose my electric company in San Marcos?
Yes, the state of Texas has deregulated electric utilities. Deregulation allows for multiple electric providers within each city and lets customers choose or switch to a provider or plan best fits their needs. Assuming your area has started allowing retail electric competition, you can choose between San Marcos Electric Utility and Pedernales Electric Cooperative or any of the 4 electric providers available in San Marcos.
Can I choose my natural gas utility provider in San Marcos, TX?
No, Texas has not deregulated its natural gas utilities. The primary gas company in San Marcos is CenterPoint Energy.
What is the average utility bill in San Marcos?
On average, the residents of San Marcos, TX pay around $191.89 total per month on utility bills including electric, gas, water and trash. That means people in San Marcos on average pay 16.7% more than the national average of $164.4 on utilities each month.
Does San Marcos offer municipal electricity services?
Yes, City of San Marcos is a municipal electric provider and supplies most residents of San Marcos with electricity. Most cities also offer essential municipal services like water, sewage treatment and wastewater disposal.
Who is the fastest internet provider in San Marcos?
Spectrum is the fastest internet service provider in San Marcos, offering speeds up to 7 Gbps to 91.63% of the city.
Who is the cheapest electricity supplier in San Marcos?
San Marcos Electric Utility is the cheapest electric provider in San Marcos, offering plans starting at $9999.