In Castleford there is 1 residential DSL provider covering 91.31% of the city. The average home can get speeds up to 29 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 Castleford, ID.
To see availability maps for all providers including fiber, cable, DSL, and more in Castleford, ID please click below.
Castleford, ID Availability Maps
DSL Internet Service Provider in Castleford
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 Castleford are not shown.
Castleford 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 Castleford is DSL internet available?
DSL Internet Availability Key
DSL is available in 91.31% of Castleford. 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 Castleford above to see who has service at your home.
How fast is DSL internet in Castleford?
The map below shows maximum DSL internet speeds by area in Castleford.
DSL Internet Speed Key
The average Castleford home can get up to 29 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 40 Mbps, which 58.05% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 33.26% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Castleford.
DSL internet speeds tend to be faster in the northeast parts of Castleford, and slower in the central areas of the city.
Is DSL the fastest internet I can get in Castleford?
The fastest internet for you may vary based on where in Castleford you live. In general, fixed wireless competes most often with DSL in the city.
- Fiber is the fastest internet type for less than 1% of Castleford homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 95.34%.
- Satellite internet may be the only option for 4.66% of Castleford homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Castleford, along with details on where in Castleford and at what speeds.
Centurylink DSL in Castleford, ID
Centurylink DSL coverage
About 91.31%, or 431 people, have Centurylink DSL internet available to them in the city. The company covers the east, northeast, and central Castleford area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castleford.
Centurylink DSL download speeds
Centurylink is the slowest when comparing download speeds to all other internet providers in Castleford. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 2 different maximum speeds throughout Castleford. The fastest plan anyone in Castleford can order from Centurylink goes up to 40 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Castleford customers is up to 29 Mbps.
Show all download speeds
- 63.6% up to 40.0 Mbps
- 36.4% up to 10.0 Mbps
Centurylink DSL upload speeds
In Castleford 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 Castleford DSL providers. Centurylink offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castleford is up to 3.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 2.3 Mbps.
Show all upload speeds
- 63.6% up to 3.0 Mbps
- 36.4% up to 1.0 Mbps
Castleford DSL by Area
This information is most helpful to those looking for homes or considering moving to Castleford or any of the areas nearby.
How does DSL internet in Castleford compare to the rest of Idaho?
DSL internet speeds in Castleford are much faster versus the average speeds in Idaho: 0.00 Mbps in Idaho versus 29 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Idaho is 0.00% versus 91.31% in Castleford.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Castleford 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 cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Fairview, ID: less DSL coverage, slower speeds
- Deep Creek, ID: less DSL coverage, faster speeds
- Buhl, ID: more DSL coverage, slower speeds
- Clover, ID: less DSL coverage, slower speeds
- Filer, ID: less DSL coverage, faster speeds
- Wendell, ID: less DSL coverage, slower speeds
- Hagerman, ID: less DSL coverage, faster speeds
- Twin Falls, ID: more DSL coverage, faster speeds
- Falls City, ID: more DSL coverage, faster speeds
- Rogerson, ID: less DSL coverage, faster speeds
Cities with Similar Populations
- Plum Run, PA: more DSL coverage, slower speeds
- Index, WA: less DSL coverage, faster speeds
- Koontz Lake, IN: more DSL coverage, faster speeds
- La Grange, WI: less DSL coverage, faster speeds
- Langworthy, IA: less DSL coverage, slower speeds
- Lanton, MO: less DSL coverage, faster speeds
- Larisons Corner, NJ: less DSL coverage, slower speeds
- Lawn, PA: less DSL coverage, slower speeds
- Lawton, PA: more DSL coverage, faster speeds
- Livonia, IN: less DSL coverage, faster speeds