Internet Providers in San Marcos, TX
Internet Score 956 providers · 1 ZIP codes
San Marcos, Texas has 6 broadband providers covering 1 ZIP code. Fiber internet is available through Frontier and Brightspeed, making San Marcos one of the better-served markets in the state. Frontier delivers a median real-world speed of 186 Mbps based on M-Lab network tests in this area. Plans start from $30/mo.
All providers in San Marcos
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About internet service in San Marcos, TX
San Marcos is served by 6 broadband providers according to FCC data. Fiber optic service is available through Frontier and Brightspeed, providing the fastest and most reliable connections in the area.
Frontier has the widest coverage in San Marcos at 100% of ZIP codes. Measured speeds average 186 Mbps, based on M-Lab test data from residents in the area.
For the most accurate availability check, enter your specific address on the provider website — coverage boundaries often follow individual streets, not ZIP codes.
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Coverage: FCC BDC · Speeds: M-Lab NDT (24-month median) · Updated 2026-07-12