Internet Providers in La Vernia, TX
ZIP code 78121 · 4 providers
Cable internet is provided by Spectrum. Based on M-Lab speed tests, AT&T customers in 78121 see a median download of 9 Mbps — 9% of the advertised speed. Plans start at $30/mo.
A single 0–100 rating for 78121 from real speed tests, provider choice, price value, and latency — data most comparison sites don't show.
How 78121 compares to nearby areas
Internet quality can change street to street. Here's how neighboring ZIP codes score.
Frequently asked questions
4 providers serve La Vernia, TX 78121: Spectrum, Verizon, T-Mobile, AT&T. Availability varies by exact street address — enter your address on the provider's site to confirm.
Spectrum advertises the highest speed in this ZIP at 1 Gbps via cable.
Fiber optic is not currently listed by the FCC as available in 78121. Cable and wireless options are available.
Guides
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How Much Internet Speed Do You Actually Need?
Most households are paying for 3–10x more than they use
Advertised vs Real Internet Speeds
The gap between the ad and your actual connection — measured, not estimated
The Cheapest Internet Plans, Compared Honestly
Standard published rates — not promotional prices that double after a year
Coverage: FCC Broadband Data Collection · Speeds: M-Lab NDT (24-month median) · Updated 2026-07-12