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Internet providers in 78666

Find internet providers serving the 78666 area. Compare plan pricing and speeds from fiber-optic, cable and DSL providers.

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Internet providers in your area

78666 internet providers

Provider
Spectrum $49.99 300 - 1,000 Mbps **Cable92%
CenturyLink $50.00 *** 10 - 940 MbpsDSL97%
CenturyLink $50.00 *** 10 - 940 MbpsFiber-optic14%
Astound $25.99 300 - 1,200 MbpsCable70%
Astound $25.99 300 - 1,200 MbpsFiber-optic10%
Shop providers Need help? Call: (844) 512-2720

78666 internet service at a glance

At 93%, broadband coverage in the 78666 ZIP code is comparable to the rest of Texas - 91%, and comparable to broadband coverage across the U.S. - 95%.

The vast majority of those living in the 78666 ZIP will have access to cable, which covers 93% of households. Fiber-optic internet is also an option for many, offering service to 39% of the area. DSL is less available but still a popular internet option for roughly 11% of those living in the 78666 ZIP code.

There are nine internet providers serving the 78666 area, and 93.09% of households will have internet options from more than one provider. Among nine internet providers in 78666, prices start at $25.99 and available download speeds reach up to 1,200 Mbps.

Results from real users

Average internet speeds in San Marcos

ProviderDownload speedUpload speedInternet type
CenturyLink 23 Mbps 7 Mbps DSL
Viasat 14 Mbps 2 Mbps Satellite
GVTC 3 Mbps 1 Mbps DSL
Spectrum 84 Mbps 24 Mbps Cable

Top high-speed internet providers in 78666

The largest internet providers serving the 78666 ZIP code are Spectrum and CenturyLink bringing cable, DSL, and fiber-optic options to the area.

Cable internet from Spectrum is available to nearly all in the 78666 ZIP code, covering 92% of households. Many will also have the option of DSL from CenturyLink, which covers 97% of the area. San Marcos’s third most-available internet provider, CenturyLink, offers fiber-optic to around 14% of residents in the 78666 ZIP code.

Spectrum cable internet

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

1,000 Mbps**

(wireless speeds may vary)

Max upload speed

20 Mbps

Average availability

92%

Cable from Spectrum offers broadband to nearly all households in the 78666 ZIP code, covering 92% of the area.

Spectrum’s cable network is likely to offer faster speeds than DSL or satellite service, but 78666 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, $47.60.

Spectrum customers who choose the lowest-priced plan can expect speeds up to 300 Mbps**, which comes to an estimated $0.17 per Mbps, about the same as the average cost per Mbps for the lowest priced plans in San Marcos, $0.18.

For those who value internet speed as much as cost, Spectrum offers download speeds up to 1,000 Mbps** and upload speeds up to 20 Mbps in 78666 ZIP code. These download speeds are available to 92% of the area, and are much faster than the average max speeds from all San Marcos's providers, 444 Mbps.

Check availability Call us: (844) 512-2720

CenturyLink DSL internet

Provider
CenturyLink
Starting price*
$50/mo.
Max download speed

940 Mbps

Max upload speed

10 Mbps

Average availability

97%

DSL from CenturyLink offers broadband to nearly all households in the 78666 ZIP code, covering 97% of the area.

DSL internet from CenturyLink uses telephone lines 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 CenturyLink start at $50/mo.*, which is about the same as the average starting price for internet in San Marcos, $47.60.

CenturyLink customers who choose the lowest-priced plan can expect speeds up to 10 Mbps, which comes to an estimated $5.00 per Mbps, significantly higher than the average cost per Mbps for the lowest priced plans in San Marcos, $0.18.

For those who value internet speed as much as cost, CenturyLink offers download speeds up to 940 Mbps and upload speeds up to 10 Mbps in 78666 ZIP code. These download speeds are available to 97% of the area, and are much faster than the average max speeds from all San Marcos's providers, 444 Mbps.

Check availability Call us: (844) 512-2720

CenturyLink fiber-optic internet

Provider
CenturyLink
Starting price*
$50/mo.
Max download speed

940 Mbps

Max upload speed

20 Mbps

Average availability

14%

Fiber-optic from CenturyLink offers broadband to a limited number of households in the 78666 ZIP code, covering 14% of the area.

Fiber-optic service from CenturyLink is popular for its fast download and upload speeds, even during peak usage times, but may be less available throughout 78666 ZIP code than other internet types.

Internet prices for CenturyLink start at $50/mo.*, which is about the same as the average starting price for internet in San Marcos, $47.60.

CenturyLink customers who choose the lowest-priced plan can expect speeds up to 10 Mbps, which comes to an estimated $5.00 per Mbps, significantly higher than the average cost per Mbps for the lowest priced plans in San Marcos, $0.18.

For those who value internet speed as much as cost, CenturyLink offers download speeds up to 940 Mbps and upload speeds up to 20 Mbps in 78666 ZIP code. These download speeds are available to 14% of the area, and are much faster than the average max speeds from all San Marcos's providers, 444 Mbps.

Check availability Call us: (844) 512-2720

Internet coverage for rural areas

If you have limited cable, DSL and fiber-optic internet options in the 78666 ZIP code, satellite and fixed wireless providers may be available.

Satellite internet from HughesNet and Viasat offers 100% availability in 78666 and the greater San Marcos area. HughesNet starting prices are significantly higher than average in San Marcos at $64.99/mo. for speeds up to 25 Mbps. Viasat starting prices are significantly higher than average in San Marcos at $69.99/mo. for speeds up to 150 Mbps. Satellite internet is a less appealing option for many in the 78666 ZIP, however, as service typically comes with high latency and low data allowances.

Fixed wireless is another popular internet option for those in rural areas. Those living in or just outside of San Marcos may have access to fixed wireless internet service from HughesNet, with plans starting at $64.99 and available download speeds up to 25 Mbps. Fixed wireless service is less likely to come with the high latency of satellite internet, but monthly data limits can still be an issue compared to San Marcos DSL, cable, and fiber-optic internet providers.

Internet providers in 78666 frequently asked questions

Astound is the fastest internet provider in the 78666 ZIP code with download speeds up to 1,200 Mbps. These speeds are available to 70% of households in 78666. The next fastest internet provider in the 78666 ZIP code is Astound, offering download speeds up to 1,200 Mbps to 10% of the area.

Astound offers the cheapest internet in the 78666 ZIP with service starting at $25.99/mo. This is significantly less than the average starting price for internet in San Marcos, $47.60.

CenturyLink is the largest fiber-optic internet service provider serving the 78666 ZIP code, covering 14% of the city. Astound also offers fiber internet in 78666 and is available to 10% of households.

Learn the penalty, if any, of canceling service with your current provider. Find other internet providers in your area and compare plans and pricing. Choose the internet provider and plan that best meets your needs. Order your new services and get your installation/activation date. Call your current internet provider and cancel service by the activation date of your new service.

Each video streaming service has varying recommended speeds, but speeds up to 10 Mbps will often handle streaming on one device. For HD and 4K streaming, consider faster speeds of at least 25 Mbps to reduce buffering and maintain optimal picture quality.

Available providers vary by address, but your location is likely serviceable for cable and DSL internet. Fiber internet may also be an internet option, but this technology is typically found in larger cities. Those living in rural areas not serviceable for cable, DSL or fiber internet may find satellite or fixed wireless internet to be their only options.