In Custer County there are 2 residential Fiber providers covering 11.91% of the county. The average home can get speeds up to 1,000 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 Fiber internet providers in Custer County, MT.
To see availability maps for all providers including fiber, cable, DSL, and more in Custer County, MT please click below.
Custer County, MT Availability Maps
Fiber 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 fiber internet available?
Fiber Internet Availability Key
Fiber is available in 11.91% of Custer County. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Mid-Rivers COMMUNICATIONS. Call one of the companies with service in Custer County above to see who has service at your home.
How fast is fiber internet in Custer County?
The map below shows maximum fiber internet speeds by area in Custer County.
Fiber Internet Speed Key
The average Custer County home can get up to 1,000 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 1,000 Mbps, which 11.91% of residents can get.
Is fiber 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, cable competes most often with fiber in the county.
- Fiber is the fastest internet type for 11.91% of Custer County homes.
- Cable is fastest for 81.32% of the county.
- DSL is fastest for 1.72%.
- Fixed wireless is fastest for 2.77%.
- Satellite internet may be the only option for 2.28% of Custer County homes.
Fiber 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.
Mid-Rivers COMMUNICATIONS Fiber in Custer County, MT
Mid-Rivers COMMUNICATIONS fiber coverage
About 10.53%, or 1,250 people, have Mid-Rivers COMMUNICATIONS fiber internet available to them in the county. The company covers the northeast, southeast, northwest, central, west, east, and south Custer County area. Mid-Rivers COMMUNICATIONS is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Custer County.
Mid-Rivers COMMUNICATIONS fiber download speeds
Mid-Rivers COMMUNICATIONS is one of the fastest when comparing download speeds to all other internet providers in Custer County. Versus other fiber providers in the area, Mid-Rivers COMMUNICATIONS fiber is one of the fastest. There are no different maximum speeds throughout Custer County. The fastest plan anyone in Custer County can order from Mid-Rivers COMMUNICATIONS goes up to 1,000 Mbps, and all Custer County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mid-Rivers COMMUNICATIONS fiber upload speeds
In Custer County download speeds tend to be equal to than upload speeds for Mid-Rivers COMMUNICATIONS fiber. Compared to other ISPs, Mid-Rivers COMMUNICATIONS is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Custer County fiber providers. Mid-Rivers COMMUNICATIONS offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Custer County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Range Fiber in Custer County, MT
Range fiber coverage
About 1.92%, or 228 people, have Range fiber internet available to them in the county. The company covers the southeast, southwest, and northwest Custer County area. Range is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Custer County.
Range fiber download speeds
Range is one of the fastest when comparing download speeds to all other internet providers in Custer County. Versus other fiber providers in the area, Range fiber is one of the fastest. There are no different maximum speeds throughout Custer County. The fastest plan anyone in Custer County can order from Range goes up to 1,000 Mbps, and all Custer County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Range fiber upload speeds
In Custer County download speeds tend to be equal to than upload speeds for Range fiber. Compared to other ISPs, Range is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Custer County fiber providers. Range offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Custer County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Custer County Fiber 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 fiber internet in Custer County compare to the rest of Montana?
Fiber internet speeds in Custer County are much faster versus the average speeds in Montana: 0.00 Mbps in Montana versus 1,000 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in Montana is 0.00% versus 11.91% in Custer County.
What zip codes have fiber internet?
Fiber 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 fiber 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
- Fallon County, MT: more fiber coverage, similar speeds
- Slope County, ND: more fiber coverage, similar speeds
- Musselshell County, MT: more fiber coverage, slower speeds
- Hettinger County, ND: more fiber coverage, similar speeds
- Wheatland County, MT: more fiber coverage, slower speeds
- Grant County, ND: more fiber coverage, slower speeds
- Meagher County, MT: more fiber coverage, slower speeds
- Logan County, ND: more fiber coverage, faster speeds
- Powell County, MT: less fiber coverage, slower speeds
- LaMoure County, ND: more fiber coverage, similar speeds
Counties with Similar Populations
- Baker County, OR: more fiber coverage, faster speeds
- Bates County, MO: more fiber coverage, faster speeds
- Barton County, MO: less fiber coverage, faster speeds
- Barnwell County, SC: more fiber coverage, faster speeds
- Barnes County, ND: more fiber coverage, faster speeds
- White County, IL: more fiber coverage, faster speeds
- Barber County, KS: more fiber coverage, faster speeds
- Baraga County, MI: more fiber coverage, similar speeds
- Sevier County, UT: more fiber coverage, faster speeds
- Bamberg County, SC: more fiber coverage, similar speeds