Internet providers in San Marcos, TX
San Marcos is a city in Texas with about 68,920 residents and roughly 35,324 residential locations that internet providers can report on. The table below compares the providers that report service here.
Compare internet providers in San Marcos, TX
Share of residential locations in San Marcos where each provider reports service, from the FCC National Broadband Map (data as of December 31, 2025). Availability depends on your exact address.
| # | Provider | Technology (varies by address) | Locations covered | |
|---|---|---|---|---|
| 1 | Spectrum | Fiber, Cable | 92% | |
| 2 | Verizon | Fiber, Fixed wireless | 58% | Check availability |
| 3 | T-Mobile Home Internet | Fixed wireless | 58% | |
| 4 | Astound Broadband | Fiber, Cable | 51% | |
| 5 | Valley Telephone Cooperative, Inc. (TX) | Fixed wireless | 51% | |
| 6 | Brightspeed | Fiber, DSL | 46% | |
| 7 | AT&T | Fiber, DSL, Fixed wireless | 29% | Check availability |
| 8 | Guadalupe Valley Electric Cooperative | Fiber, Fixed wireless | 2% |
Satellite internet
| 1 | HughesNet | Satellite | 99%+ | |
| 2 | Viasat | Satellite | 99%+ | |
| 3 | Starlink | Satellite | 99%+ |
Satellite service is available at nearly every address but typically has higher latency than wired options.
Provider-reported coverage does not guarantee service or speeds at a specific address. Some "Check availability" links are affiliate links; we may earn a commission at no cost to you. How we make money.
What to know about internet in San Marcos
Spectrum reports service to the most residential locations in San Marcos, about 92%. 5 providers report coverage of at least half of locations (Spectrum, Verizon, T-Mobile Home Internet, Astound Broadband, and Valley Telephone Cooperative, Inc. (TX)), so the market looks competitive. T-Mobile Home Internet and Valley Telephone Cooperative, Inc. (TX) offer fixed wireless home internet, an option if you prefer no cable or fiber installation.
What technologies are available in San Marcos?
Fiber reaches about 39% of locations in San Marcos, so it is available in parts of the area but not everywhere. Plans of 100 Mbps or faster are reported for about 99%+ of locations, while gigabit-class service reaches about 46%. Fixed wireless home internet is reported for about 82% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in San Marcos that providers report they can serve. City-level figures, not your address.
San Marcos at a glance
About 84% of households in San Marcos have a broadband subscription, 6 points below the Texas average of 90%.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023).
Internet providers in places near San Marcos
- Kyle, TX (9 mi)
- Buda, TX (15 mi)
- Lockhart, TX (15 mi)
- New Braunfels, TX (16 mi)
- Canyon Lake, TX (19 mi)
- Seguin, TX (20 mi)
- Cibolo, TX (27 mi)
- Schertz, TX (29 mi)
- Bee Cave, TX (30 mi)
- Universal City, TX (31 mi)
- Austin, TX (32 mi)
- Live Oak, TX (33 mi)
- Lakeway, TX (33 mi)
- Converse, TX (34 mi)
- Steiner Ranch, TX (34 mi)
- Timberwood Park, TX (35 mi)
Frequently asked questions
Is fiber internet available in San Marcos?
Yes, in part. About 39% of residential locations in San Marcos can get fiber, 93% can get cable, and about 46% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in San Marcos?
Spectrum reports service to about 92% of residential locations in San Marcos, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve San Marcos?
8 providers report service to at least 2% of locations in San Marcos, and 5 cover at least half. Satellite (HughesNet, Viasat, Starlink) is also available nearly everywhere.
What is the difference between fiber, cable and DSL?
Fiber offers the fastest and most consistent speeds, cable is widely available with high download speeds, and DSL runs over phone lines and is usually slower. See our guide for details.
What internet speed do I need in San Marcos?
Most households are well served by 100–300 Mbps. Heavy streaming, gaming or many connected devices may benefit from 500 Mbps or more.
Check your exact address
Coverage for a whole community cannot tell you what is available at your door. Enter your ZIP code, then confirm with each provider.
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