In Custer County there are 3 residential DSL providers covering 36.33% of the county. The average home can get speeds up to 21 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 Custer County, ID.
To see availability maps for all providers including fiber, cable, DSL, and more in Custer County, ID please click below.
Custer County, ID Availability Maps
DSL Internet Service Providers in Custer 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 Custer County are not shown.
Custer 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 Custer County is DSL internet available?
DSL Internet Availability Key
DSL is available in 36.33% of Custer County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Custer. Call one of the companies with service in Custer County above to see who has service at your home.
How fast is DSL internet in Custer County?
The map below shows maximum DSL internet speeds by area in Custer County.
DSL Internet Speed Key
The average Custer County home can get up to 21 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 25 Mbps, which 27.79% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 8.54% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Custer County.
DSL internet speeds tend to be faster in the northwest parts of Custer County, and slower in the southeast areas of the county.
Is DSL the fastest internet I can get in Custer County?
The fastest internet for you may vary based on where in Custer County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 86.81% of Custer County homes.
- Cable is fastest for less than 1% of the county.
- DSL is fastest for 6.43%.
- Fixed wireless is fastest for 3.60%.
- Satellite internet may be the only option for 3.16% of Custer County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Custer County, along with details on where in Custer County and at what speeds.
Custer Telephone Cooperative DSL in Custer County, ID
Custer DSL coverage
About 20.05%, or 857 people, have Custer DSL internet available to them in the county. The company covers the north, central, west, southwest, northwest, and south Custer County area. Custer is a small internet service provider internet service providers in the US, with internet service available in a small portion of Custer County.
Custer Telephone Cooperative DSL download speeds
Custer is below average when comparing download speeds to all other internet providers in Custer County. Versus other DSL providers in the area, Custer DSL is the fastest. There are 2 different maximum speeds throughout Custer County. The fastest plan anyone in Custer County can order from Custer goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Custer County customers is up to 22 Mbps.
Show all download speeds
- 83.2% up to 25.0 Mbps
- 16.8% up to 10.0 Mbps
Custer Telephone Cooperative DSL upload speeds
In Custer County download speeds tend to be faster than than upload speeds for Custer DSL. Compared to other ISPs, Custer is below average where upload speeds are concerned, and the fastest compared to other Custer County DSL providers. Custer offers 2 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 Custer County is up to 3.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Custer customers can get speeds up to 2.7 Mbps.
Show all upload speeds
- 83.2% up to 3.0 Mbps
- 16.8% up to 1.0 Mbps
ATC Communications (Idaho) DSL in Custer County, ID
ATC Communications DSL coverage
About 12.16%, or 520 people, have ATC Communications DSL internet available to them in the county. The company covers the southeast Custer County area. ATC Communications is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Custer County.
ATC Communications (Idaho) DSL download speeds
ATC Communications is the slowest when comparing download speeds to all other internet providers in Custer County. Versus other DSL providers in the area, ATC Communications DSL is the slowest. There are 2 different maximum speeds throughout Custer County. The fastest plan anyone in Custer County can order from ATC Communications goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Custer County customers is up to 20 Mbps.
Show all download speeds
- 66.5% up to 25.0 Mbps
- 33.5% up to 10.0 Mbps
ATC Communications (Idaho) DSL upload speeds
In Custer County download speeds tend to be faster than than upload speeds for ATC Communications DSL. Compared to other ISPs, ATC Communications is the slowest where upload speeds are concerned, and the slowest compared to other Custer County DSL providers. ATC Communications offers 2 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 Custer County is up to 3.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, ATC Communications customers can get speeds up to 2.3 Mbps.
Show all upload speeds
- 66.5% up to 3.0 Mbps
- 33.5% up to 1.0 Mbps
Midvale Telephone Company DSL in Custer County, ID
Midvale Telephone Company DSL coverage
About 5.03%, or 215 people, have Midvale Telephone Company DSL internet available to them in the county. The company covers the west, southwest, and northwest Custer County area. Midvale Telephone Company is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Custer County.
Midvale Telephone Company DSL download speeds
Midvale Telephone Company is below average when comparing download speeds to all other internet providers in Custer County. Versus other DSL providers in the area, Midvale Telephone Company DSL is average. There are 2 different maximum speeds throughout Custer County. The fastest plan anyone in Custer County can order from Midvale Telephone Company goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Custer County customers is up to 21 Mbps.
Show all download speeds
- 75.8% up to 25.0 Mbps
- 24.2% up to 10.0 Mbps
Midvale Telephone Company DSL upload speeds
In Custer County download speeds tend to be faster than than upload speeds for Midvale Telephone Company DSL. Compared to other ISPs, Midvale Telephone Company is below average where upload speeds are concerned, and average compared to other Custer County DSL providers. Midvale Telephone Company offers 2 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 Custer County is up to 3.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Midvale Telephone Company customers can get speeds up to 2.5 Mbps.
Show all upload speeds
- 75.8% up to 3.0 Mbps
- 24.2% up to 1.0 Mbps
Custer County DSL by Area
This information is most helpful to those looking for homes or considering moving to Custer County or any of the areas nearby.
How does DSL internet in Custer County compare to the rest of Idaho?
DSL internet speeds in Custer County are much faster versus the average speeds in Idaho: 0.00 Mbps in Idaho versus 21 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Idaho is 0.00% versus 36.33% in Custer County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Custer 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
- Clark County, ID: less DSL coverage, faster speeds
- Washington County, ID: more DSL coverage, faster speeds
- Crook County, OR: more DSL coverage, faster speeds
- Johnson County, WY: more DSL coverage, slower speeds
- Campbell County, WY: more DSL coverage, faster speeds
- Meade County, SD: more DSL coverage, faster speeds
- Stanley County, SD: more DSL coverage, faster speeds
- Hughes County, SD: more DSL coverage, faster speeds
- Beadle County, SD: more DSL coverage, slower speeds
- Kingsbury County, SD: more DSL coverage, faster speeds
Counties with Similar Populations
- Winn Parish, LA: more DSL coverage, slower speeds
- Yoakum County, TX: more DSL coverage, faster speeds
- Appanoose County, IA: more DSL coverage, faster speeds
- Archer County, TX: less DSL coverage, faster speeds
- Archuleta County, CO: more DSL coverage, faster speeds
- Yalobusha County, MS: more DSL coverage, slower speeds
- Wrangell City and Borough, AK: more DSL coverage, faster speeds
- Woodruff County, AR: more DSL coverage, faster speeds
- Wirt County, WV: more DSL coverage, faster speeds
- Winkler County, TX: more DSL coverage, slower speeds