In Costilla County there is 1 residential DSL provider covering 14.92% of the county. The average home can get speeds up to 32 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all DSL internet providers in Costilla County, CO.
To see availability maps for all providers including fiber, cable, DSL, and more in Costilla County, CO please click below.
Costilla County, CO Availability Maps
DSL Internet Service Provider in Costilla County
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Costilla County are not shown.
Costilla County Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Costilla County is DSL internet available?
DSL Internet Availability Key
DSL is available in 14.92% of Costilla County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Centurylink. Call one of the companies with service in Costilla County above to see who has service at your home.
How fast is DSL internet in Costilla County?
The map below shows maximum DSL internet speeds by area in Costilla County.
DSL Internet Speed Key
The average Costilla County home can get up to 32 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 60 Mbps, which 3.00% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 6.06% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Costilla County.
DSL internet speeds tend to be faster in the southeast parts of Costilla County, and slower in the south areas of the county.
Is DSL the fastest internet I can get in Costilla County?
The fastest internet for you may vary based on where in Costilla County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 73.54% of Costilla County homes.
- Cable is fastest for less than 1% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 18.15%.
- Satellite internet may be the only option for 8.12% of Costilla County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Costilla County, along with details on where in Costilla County and at what speeds.
Centurylink DSL in Costilla County, CO
Centurylink DSL coverage
About 14.92%, or 522 people, have Centurylink DSL internet available to them in the county. The company covers the southeast and south Costilla County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Costilla County.
Centurylink DSL download speeds
Centurylink is the slowest when comparing download speeds to all other internet providers in Costilla County. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 3 different maximum speeds throughout Costilla County. The fastest plan anyone in Costilla County can order from Centurylink goes up to 60 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Costilla County customers is up to 32 Mbps.
Show all download speeds
- 20.1% up to 60.0 Mbps
- 39.3% up to 40.0 Mbps
- 40.6% up to 10.0 Mbps
Centurylink DSL upload speeds
In Costilla County download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is the slowest where upload speeds are concerned, and the fastest compared to other Costilla County DSL providers. Centurylink offers 3 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Costilla County is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 2.6 Mbps.
Show all upload speeds
- 20.1% up to 5.0 Mbps
- 39.3% up to 3.0 Mbps
- 40.6% up to 1.0 Mbps
Costilla County DSL by Area
This information is most helpful to those looking for homes or considering moving to Costilla County or any of the areas nearby.
How does DSL internet in Costilla County compare to the rest of Colorado?
DSL internet speeds in Costilla County are much faster versus the average speeds in Colorado: 0.00 Mbps in Colorado versus 32 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Colorado is 0.00% versus 14.92% in Costilla County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Costilla County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL internet look like in other counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Conejos County, CO: more DSL coverage, faster speeds
- Las Animas County, CO: more DSL coverage, slower speeds
- Archuleta County, CO: more DSL coverage, faster speeds
- La Plata County, CO: more DSL coverage, faster speeds
- Baca County, CO: more DSL coverage, faster speeds
- Montezuma County, CO: more DSL coverage, faster speeds
- Stevens County, KS: more DSL coverage, faster speeds
- Clark County, KS: less DSL coverage, faster speeds
- Comanche County, KS: less DSL coverage, faster speeds
- Barber County, KS: more DSL coverage, slower speeds
Counties with Similar Populations
- Tallahatchie County, MS: more DSL coverage, slower speeds
- Choctaw County, MS: more DSL coverage, slower speeds
- Chouteau County, MT: less DSL coverage, slower speeds
- Cimarron County, OK: less DSL coverage, slower speeds
- Claiborne County, MS: more DSL coverage, slower speeds
- Upton County, TX: more DSL coverage, slower speeds
- Union County, NM: less DSL coverage, slower speeds
- Tyrrell County, NC: more DSL coverage, faster speeds
- Treasure County, MT: more DSL coverage, slower speeds
- Coal County, OK: more DSL coverage, slower speeds