San Marcos Internet Providers
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T-Mobile 5G Home Internet is available in San Marcos. $35/mo with AutoPay & a phone line.• Sponsored Check availability on T-Mobile's Website Sponsored

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    Internet Providers in San Marcos

    San Marcos has multiple fiber providers, including Astound and Brightspeed. Symmetric speeds of 1,500 Mbps are available in parts of the city.

    Residential Business

    Fiber

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Astound 1,500 1,500 37%
    Brightspeed 1,000 1,000 13%
    Spectrum 1,000 500 8%

    Cable

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Spectrum 1,000 1,000 91%
    Astound 1,500 50 59%

    DSL

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Brightspeed 100 10 87%

    Fixed Wireless

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    VTX Communications 400 50 95%
    Verizon 300 20 99%
    T-Mobile 100 20 99%
    MINTernet 100 20 99%
    AT&T 100 20 42%

    Next-Gen Satellite

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    Starlink 220 30 100%

    Old-School Satellite

    Provider DownDownload (Mbps) UpUpload (Mbps) AvailabilityCoverage
    HughesNet 100 5 100%
    Viasat 100 3 100%

    Low-Availability Internet Options

    Provider TechnologyTech Download (Mbps) Upload (Mbps) AvailabilityCoverage
    Frontier Fiber 5,000 5,000 2%
    Spry Air Fiber Fixed WirelessFixed Wireless 150 50 5%
    Guadalupe Valley Electric Coop Fixed WirelessFixed Wireless 100 20 3%

    Broadband Map's availability estimates are based on the census boundaries of San Marcos. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.

    Data Sourcing

    Broadband Map's listings of internet providers in San Marcos rely primarily on the May 2025 release from the FCC's Broadband Data Collection program (representing San Marcos ISPs' availability as of December 2024).