Texas city · Hays County
Internet providers in San Marcos, Texas
84% of the 27,606 households in San Marcos have a broadband subscription, 6 points below the Texas average of 90%. 73% connect over cable, fiber or DSL, and about 1 in 10 rely on a cellular data plan alone.
- Households
- 27,606
- Have broadband
- 84%
- Cellular data only
- 10%
- No internet at home
- 4%
Internet providers serving San Marcos
8 wired and fixed-wireless providers report home internet in San Marcos, sorted by the share of homes each says it can serve (FCC data as of December 31, 2025).
| Provider | Service types (company-wide) | Homes covered | Link |
|---|---|---|---|
| SpectrumReports to FCC as Charter Communications | Fiber, Cable | 92% | |
| VerizonReports to FCC as Verizon Communications Inc. | Fiber, Fixed wireless / 5G | 58% | |
| T-MobileReports to FCC as T-Mobile USA, Inc. | Fiber, DSL, Fixed wireless / 5G | 58% | |
| AstoundReports to FCC as Radiate Holdings, LP | Fiber, Cable, DSL, Fixed wireless / 5G | 51% | |
| Valley Telephone Cooperative | Fiber, DSL, Fixed wireless / 5G | 51% | |
| BrightspeedReports to FCC as Connect Holding II LLC | Fiber, DSL, Fixed wireless / 5G | 46% | |
| AT&TReports to FCC as AT&T Inc. | Fiber, DSL, Fixed wireless / 5G | 29% | |
| Guadalupe Valley Electric Cooperative | Fiber, Fixed wireless / 5G | 2% |
Satellite: HughesNet, Viasat and Starlink report service across San Marcos. Satellite reaches almost any home with a clear view of the sky; see how they compare.
Source: FCC National Broadband Map, data as of December 31, 2025. “Homes covered” is the share of residential locations where the provider reports it can install service within 10 business days. Service types are those the company reports anywhere in the U.S.; the type at a given address may differ. 2 more providers report service to under 1% of homes here. Providers self-report; confirm at your address. Not affiliated with or endorsed by the FCC or any provider.
How San Marcos households get online
What 27,606 households told the Census Bureau about their home internet. Each household is counted once: homes with any cable, fiber or DSL plan first, then the rest by what they have.
- Cable, fiber or DSL73% · 20,043
- Cellular data only10% · 2,675
- Satellite only0% · 6
- Other connection types2% · 447
- Access without a paid plan12% · 3,221
- No internet at home4% · 1,214
San Marcos compared with Texas
Households whose only internet is a phone or hotspot data plan.
Source: U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates, table B28002. Survey estimates; categories other than the bar above overlap, because many homes have both a wired plan and phone data.
Check providers at your San Marcos address
Town-wide coverage tells you who is around. Whether a provider can connect your home is decided street by street, so finish with an address check.
- Step 1
Look up the exact address
Type your street address on the FCC National Broadband Map. It lists each provider that reports service at that home in San Marcos, with technology and top advertised speeds.
- Step 2
Confirm with the provider
Put the same address into each provider’s availability checker. New fiber builds can be missing from FCC data, and some listed coverage turns out not to be installable.
- Step 3
Compare the broadband labels
Providers must publish a standard “broadband facts” label for every plan, showing the monthly price, fees and typical speeds. Compare those, not the headline offer.
Internet in San Marcos: common questions
What internet providers are available in San Marcos, Texas?
8 wired and fixed-wireless providers report home internet to at least 1% of homes in San Marcos, according to FCC data as of December 31, 2025. The widest reported coverage: Spectrum (92% of homes), Verizon (58% of homes) and T-Mobile (58% of homes). Satellite service from HughesNet, Viasat and Starlink is reported across the town. Coverage varies street by street, so confirm your exact address before you order.
How many homes in San Marcos have broadband?
23,171 of 27,606 households (84%) have a broadband subscription of some kind, according to the Census Bureau's 2019–2023 American Community Survey. The Texas figure is 90%.
How many San Marcos households have no internet at home?
1,214 households (4%) report no internet access at home, with a margin of error of ±316 households. Statewide the share is 8%.
Do people in San Marcos use phone data instead of home internet?
10% of households — about 1 in 10 — get online with a cellular data plan and no other internet subscription. That compares with 13% across Texas.
How do I check which providers serve my address in San Marcos?
Enter your street address on the FCC National Broadband Map (broadbandmap.fcc.gov). It lists every provider that reports service at that location, with technology and advertised speeds. Then confirm on the provider's own site, because FCC data can lag new builds and occasionally overstates coverage.