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Internet Providers in San Marcos, TX

San Marcos has 28,566 households and we list 14 home internet providers, 5 of them with fiber; the lowest published price is $30/mo (Spectrum).

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Internet providers in San Marcos, Texas

14 providers listed for this area.

  1. Viasat
    Satellite
    Plans fromCheck availability

     

    Serves parts of the area

  2. MINTernet
    5G Home
    Plans fromCheck availability

     

    Serves parts of the area

  3. Texas Wireless Internet
    Fixed wireless
    Plans fromCheck availability

     

    Serves parts of the area

  4. Ranch Wireless
    Fixed wireless
    Plans fromCheck availability

     

    Serves parts of the area

  5. Anvil Communications
    Fixed wireless
    Plans fromCheck availability

     

    Serves parts of the area

  6. GVTC
    Fiber
    Plans fromCheck availability

     

    Serves parts of the area

  7. GHz Wireless
    Fixed wireless
    Plans fromCheck availability

     

    Serves parts of the area

Internet in San Marcos, Texas: what's different here

San Marcos has 28,566 households, and 85.7% of them pay for home internet. 2.9% have no internet access at home, below the Texas figure of 4.2%.

In the Census figures, fewer homes use a wired connection (67.7%) than across Texas (75.8%), and satellite internet is less common here (5.6%) than statewide (8.4%).

For wired service, we list cable from Spectrum and Astound Broadband and fiber from Spectrum, Frontier, Astound Broadband, Brightspeed and GVTC in parts of San Marcos.

What people in San Marcos, Texas search for

More searches people type into Google in San Marcos

San Marcos, Texas internet at a glance

  • Plans from$30/mo
  • Speeds up to5 Gbps
  • Providers listed14Fiber 5 · 5G Home 4 · Fixed wireless 4 · Cable 2 · Satellite 1
  • Fiber providers5Spectrum, Frontier, Astound Broadband, Brightspeed and GVTC

Internet plans by speed in San Marcos, Texas

5 of the providers we list for San Marcos have a plan of 1 Gbps or more: Astound Broadband, Spectrum, Frontier, AT&T and Brightspeed. For 300 Mbps or more, the lowest listed price is AT&T at $35/mo.

  1. Up to 100 MbpsBrowsing, email and HD streaming on a couple of devices
  2. 101–300 MbpsSeveral HD streams, video calls and online gaming
  3. 301–500 MbpsBusy homes with 4K streaming and work-from-home
  4. 501–999 MbpsMany users at once and large downloads
  5. 1 Gbps and upLarge households, big uploads and multi-gig wiring

Test your internet speed in San Marcos, Texas

7 providers in San Marcos publish 26 plans we can compare your result with, from 85 Mbps to 5 Gbps (middle plan: 940 Mbps); 12 reach 1 Gbps or more.

Download speed
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Upload speed
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Latency (ping)
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Uses up to about 1 GB on very fast connections (10 seconds each way)

Runs on Cloudflare's network. How the test works and what it collects

Cable TV and internet providers in San Marcos, Texas

3 of the providers in San Marcos also sell TV:

Who has broadband in San Marcos, Texas

In San Marcos, broadband use is 21.1 points higher in households earning $75,000 or more than in those under $20,000 (the Texas gap is 21.2 points). 19.4% of San Marcos residents aged 65 and over (about 1,400 people) live in a home without internet or without a computer; across Texas it's 15.3%.

Homes with broadband, by household income
  • Under $20,00075.2%75.4%
  • $20,000–$34,99982%82.8%
  • $35,000–$49,99984.1%88.6%
  • $50,000–$74,99981.9%92.6%
  • $75,000 or more96.3%96.6%
People in a home with broadband, by age
  • Under 1898.8%95.1%
  • 18 to 6485.6%93.9%
  • 65 and over80.6%84.5%

San Marcos, Texas internet service providers (ISPs) compared

ProviderTypeStarting priceDownload up toACSI score
SpectrumCable, Fiber$30/mo2 Gbps71
FrontierFiber$44.99/mo5 Gbps—
T-Mobile Home Internet5G Home$50/mo498 Mbps78
Verizon 5G Home5G Home$60/mo250 Mbps79
AT&T5G Home$35/mo5 Gbps79
Astound BroadbandCable, Fiber$40/mo1.5 Gbps—
BrightspeedFiberCheck availability2 Gbps—
7 more local providers in San Marcos without published prices
  • ViasatSatellite
  • MINTernet5G Home
  • Texas Wireless InternetFixed wireless
  • Ranch WirelessFixed wireless
  • Anvil CommunicationsFixed wireless
  • GVTCFiber
  • GHz WirelessFixed wireless

These providers don't publish prices or speeds online; call and we'll check what they offer at your address.

Fiber internet in San Marcos, Texas

5 of the 14 providers we list for San Marcos, Texas offer fiber in parts of San Marcos:

San Marcos compared with the closest Texas cities we cover

At 2.9% of homes without internet, San Marcos is above New Braunfels, Austin, Cedar Park and Round Rock and below San Antonio. San Marcos ties for the most fiber providers listed of these cities (5).

CityDistanceHouseholdsNo internet at homeWired connectionProviders listedFiber providers
San Marcos—28,5662.9%67.7%145
New Braunfels16 mi46,8551.8%81.3%134
Austin31 mi484,5501.8%84%154
Cedar Park45 mi28,8891.6%88.8%132
San Antonio45 mi568,9794.4%76.6%164
Round Rock48 mi51,3512.6%85.1%165

Home internet by ZIP code in San Marcos, Texas

Across San Marcos's ZIP codes, the share of homes with no internet runs from 3.7% in 78666 to 10.2% in 78656. 78666 has the lowest median household income ($54,737) and 86.4% of its homes have broadband; in 78656 ($81,346) it's 85.8%.

ZIP codeHouseholdsWith broadbandNo internetMedian income
7865697685.8%10.2%$81,346
7866633,94986.4%3.7%$54,737

How San Marcos households connect

  • Homes with no internet2.9%Texas 4.2%
  • Wired connection67.7%Texas 75.8%
  • Cellular data plan only14.7%Texas 13.3%
  • Smartphone is the only device12.5%Texas 11.5%
  • Median household income$48,091Texas $79,721

About 821 San Marcos homes (2.9%) have no internet access at all, below the Texas rate of 4.2%. Another 3,800 have a computer but no internet plan (13.4%; Texas 4.2%). For 14.7% of households a cellular data plan is the only subscription, above the 13.3% statewide, and 12.5% rely on a smartphone as their only device (Texas 11.5%). 81.9% of San Marcos homes have a desktop or laptop and 1.6% have no computer of any kind; satellite subscriptions reach 5.6% (below the Texas 8.4%). The median household income is $48,091 (±$5,837), against $79,721 for Texas.

Check availability in San Marcos, Texas

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Frequently asked questions

How many internet providers are there in San Marcos, Texas?

We list 14 residential internet providers for San Marcos, Texas. By service type: Fiber 5, 5G Home 4, Fixed wireless 4, Cable 2, Satellite 1 (some providers offer more than one type).

How much does internet cost in San Marcos, Texas?

6 of the 14 providers we list for San Marcos publish prices. The lowest is $30/mo from Spectrum, and 4 have a plan under $50/mo.

What internet speeds are available in San Marcos, Texas?

The highest plan speed listed for San Marcos is 5 Gbps (Frontier). Spectrum, Frontier, AT&T, Astound Broadband and Brightspeed have plans of 1 Gbps or more here.

Is fiber internet available in San Marcos, Texas?

Yes. Spectrum, Frontier, Astound Broadband, Brightspeed and GVTC offer fiber in parts of San Marcos.

Which ZIP codes in San Marcos, Texas do you cover?

2 ZIP codes overlap San Marcos, Texas: 78656, 78666.

Who are the internet service providers (ISPs) in San Marcos, TX?

The ISPs we list for San Marcos are Spectrum, Frontier, T-Mobile Home Internet, Verizon 5G Home, Viasat, AT&T, Astound Broadband, MINTernet, Brightspeed, Texas Wireless Internet, Ranch Wireless, Anvil Communications, GVTC, GHz Wireless.

Sources

  • Plans, prices and speeds: each provider's own site (latest check Nov 6, 2026); providers without published prices show “Check availability”.
  • Provider list: comparison sites; coverage varies by address.
  • Household figures: U.S. Census Bureau ACS 2024 1-year (city) and 2020–2024 5-year (ZIP code, income and age) estimates; ZIP list from the 2020 ZCTA-to-city file (ZIPs with at least a tenth of their land in the city); distances from the 2024 Gazetteer.
  • Searches: Google search suggestions, Nov 6, 2026.
  • Customer ratings: American Customer Satisfaction Index (ACSI), shown only where a score is published. The order of providers isn't a ranking.

Find internet service in San Marcos

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(888) 428-0573