Internet providers in San Marcos, CA

Shop the best San Marcos internet providers. Compare internet plan pricing and speeds from cable, DSL and fiber-optic providers in your area.

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San Marcos internet service at a glance

At 97%, broadband coverage in San Marcos is comparable to the rest of California - 93%, and comparable to broadband coverage across the U.S. - 95%.

The vast majority of those living in the San Marcos area will have access to cable, which covers 96% of San Marcos residents. DSL internet is also an option for many, offering service to 90% of the area. Fiber-optic is less available but still a popular internet option for roughly 11% of those living in San Marcos.

There are seven internet providers serving the San Marcos area, and 91.93% of households will have internet options from more than one provider. Among San Marcos's seven internet providers, prices start at $29.99 and available download speeds reach up to 1,000 Mbps.

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Top high-speed internet providers in San Marcos

The largest internet providers in San Marcos are AT&T, Spectrum, and Cox bringing DSL and cable options to San Marcos.

DSL internet from AT&T is available to nearly all San Marcos residents, covering 87% of households. Some will also have the option of cable from Spectrum, which covers 49% of the area. San Marcos’s third most-available internet provider, Cox, offers cable to around 86% of San Marcos residents.

AT&T DSL internet

Provider
AT&T
Starting price*
$49.99/mo.
Max download speed

75 Mbps

Max upload speed

20 Mbps

Average availability

87%

DSL from AT&T offers broadband to nearly all households in San Marcos covering 87% of the area.

DSL internet from AT&T uses telephone lines in San Marcos to deliver service, which often leads to lower prices and higher availability, though download speeds are likely to be slower than cable or fiber-optic internet.

Internet prices for AT&T start at $49.99/mo.*, which is about the same as the average starting price for internet in San Marcos, $47.99.

AT&T customers who choose the lowest-priced plan can expect speeds up to 100 Mbps, which comes to an estimated $0.50 per Mbps, about the same as the average cost per Mbps for the lowest priced plans in San Marcos, $0.81.

For those who value internet speed as much as cost, AT&T offers download speeds up to 75 Mbps and upload speeds up to 20 Mbps in San Marcos. These download speeds are available to 87% of the area, and are much slower than the average max speeds from all San Marcos's providers, 542 Mbps.

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or call us today: (844) 451-2720

Call us: (844) 512-2720

Spectrum cable internet

Provider
Spectrum
Starting price*
$49.99/mo.
Max download speed

300 Mbps

Max upload speed

20 Mbps

Average availability

49%

Cable from Spectrum offers broadband to about half of households in San Marcos covering 49% of the area.

Spectrum’s cable network is likely to offer faster speeds than DSL or satellite service, but San Marcos residents in densely populated areas may experience slowed speeds during peak usage times.

Internet prices for Spectrum start at $49.99/mo.*, which is about the same as the average starting price for internet in San Marcos, $47.99.

Spectrum customers who choose the lowest-priced plan can expect speeds up to 60 Mbps, which comes to an estimated $0.83 per Mbps, about the same as the average cost per Mbps for the lowest priced plans in San Marcos, $0.81.

For those who value internet speed as much as cost, Spectrum offers download speeds up to 300 Mbps and upload speeds up to 20 Mbps in San Marcos. These download speeds are available to 49% of the area, and are much slower than the average max speeds from all San Marcos's providers, 542 Mbps.

Check availability

or call us today: (844) 451-2720

Call us: (844) 512-2720

Cox cable internet

Provider
Cox
Starting price*
$29.99/mo.
Max download speed

300 Mbps

Max upload speed

30 Mbps

Average availability

86%

Cable from Cox offers broadband to nearly all households in San Marcos covering 86% of the area.

Cox’s cable network is likely to offer faster speeds than DSL or satellite service, but San Marcos residents in densely populated areas may experience slowed speeds during peak usage times.

Internet prices for Cox start at $29.99/mo.*, which is significantly lower than the average starting price for internet in San Marcos, $47.99.

Cox customers who choose the lowest-priced plan can expect speeds up to 10 Mbps, which comes to an estimated $3.00 per Mbps, higher than the average cost per Mbps for the lowest priced plans in San Marcos, $0.81.

For those who value internet speed as much as cost, Cox offers download speeds up to 300 Mbps and upload speeds up to 30 Mbps in San Marcos. These download speeds are available to 86% of the area, and are much slower than the average max speeds from all San Marcos's providers, 542 Mbps.

Check availability

or call us today: (844) 451-2720

Call us: (844) 512-2720

Internet coverage for rural areas

If you live in the heart of San Marcos, you’ll likely have options from DSL, cable, and fiber-optic internet providers. For those in rural areas or just outside San Marcos, however, satellite or fixed wireless internet may be the best internet option.

Satellite internet from HughesNet and ViaSat, Inc. offers 100% availability in San Marcos and surrounding areas. HughesNet starting prices are significantly higher than average in San Marcos at $59.99/mo. for speeds up to 25 Mbps. The starting price for ViaSat, Inc. plans is about average for San Marcos at $50/mo. for speeds up to 12 Mbps. Satellite internet is a less appealing option for many San Marcos residents, however, as service typically comes with high latency and low data allowances.

San Marcos, CA internet providers

Need help? Call (844) 451-2720

Provider
AT&T $49.99/mo. 100 - 1,000 Mbps Fiber-optic 6.774%
AT&T $49.99/mo. 100 - 75 Mbps DSL 87%
Spectrum $49.99/mo. 60 - 300 Mbps Cable 49%
Cox $29.99/mo. 10 - 1,000 Mbps Fiber-optic 4.676%
Cox $29.99/mo. 10 - 300 Mbps Cable 86%
Shop providers Need help? Call: (844) 512-2720

Internet provider frequently asked questions

AT&T is the fastest internet provider in San Marcos with download speeds up to 1,000 Mbps. These speeds are available to 6.774% of households in San Marcos. The next fastest internet provider in San Marcos is Cox, offering download speeds up to 1,000 Mbps to 4.676% of the area.

Cox offers the cheapest internet in San Marcos with plans starting at $29.99/mo. This is significantly less than the average starting price for internet in San Marcos, $47.99.

AT&T is the largest fiber-optic internet service provider in San Marcos, covering 6.774% of the city. Cox also offers fiber internet in San Marcos and is available to 4.676% of households.

If you suspect your slow speeds are the result of your internet provider throttling your connection, the easiest way to determine if you’re being throttled is to perform two speed tests. Run the first test on your regular network, then run the second one on a VPN. If the two speeds are drastically different (and the VPN test was higher), your internet provider may be throttling your speeds.

There are many factors that can influence internet speed. In many cases, restarting your router will resolve speed and connectivity issues. Other factors, such as peak usage times and speed throttling can also cause temporary speed issues.

Yes. Fiber-optic internet is a completely different technology than DSL or cable internet, and therefore requires a different type of modem. In many cases, you can get the required modem from your internet provider at no extra cost.