In Firth there is 1 residential Fiber provider covering 3.06% of the city. The average home can get speeds up to 2,242 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 Firth, ID.
To see availability maps for all providers including fiber, cable, DSL, and more in Firth, ID please click below.
Fiber Internet Service Provider in Firth
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 Firth are not shown.
Firth 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 Firth is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 3.06% of Firth. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Cable One. Call one of the companies with service in Firth above to see who has service at your home.
How fast is fiber internet in Firth?
The map below shows maximum fiber internet speeds by area in Firth.

Fiber Internet Speed Key
The average Firth home can get up to 2,242 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 8,000 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 2.52% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Firth.
Fiber internet speeds tend to be faster in the southeast parts of Firth, and slower in the northwest areas of the city.
Is fiber the fastest internet I can get in Firth?
The fastest internet for you may vary based on where in Firth you live. In general, fixed wireless competes most often with fiber in the city.
- Fiber is the fastest internet type for 3.06% of Firth homes.
- Cable is fastest for 46.71% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 49.58%.
- Satellite internet may be the only option for less than 1% of Firth homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Firth, along with details on where in Firth and at what speeds.
Sparklight Fiber in Firth, ID

Sparklight fiber coverage
About 1.83%, or 37 people, have Sparklight fiber internet available to them in the city. The company covers the northwest and east Firth area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Firth.
Sparklight fiber download speeds
Sparklight is average when comparing download speeds to all other internet providers in Firth. Versus other fiber providers in the area, Sparklight fiber is one of the slowest. There are no different maximum speeds throughout Firth. The fastest plan anyone in Firth can order from Sparklight goes up to 1,000 Mbps, and all Firth customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight fiber upload speeds
In Firth download speeds tend to be faster than than upload speeds for Sparklight fiber. Compared to other ISPs, Sparklight is below average where upload speeds are concerned, and the slowest compared to other Firth fiber providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Firth is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Firth Fiber by Area
This information is most helpful to those looking for homes or considering moving to Firth or any of the areas nearby.
How does fiber internet in Firth compare to the rest of Idaho?
Fiber internet speeds in Firth are much faster versus the average speeds in Idaho: 0.00 Mbps in Idaho versus 2,242 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Idaho is 0.00% versus 3.06% in Firth.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Firth 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 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
- Shelley, ID: more fiber coverage, slower speeds
- Woodville, ID: more fiber coverage, slower speeds
- Blackfoot, ID: less fiber coverage, slower speeds
- Idaho Falls, ID: more fiber coverage, slower speeds
- Ammon, ID: more fiber coverage, slower speeds
- Milo, ID: more fiber coverage, slower speeds
- Beachs Corner, ID: more fiber coverage, slower speeds
- Iona, ID: more fiber coverage, slower speeds
- Grant, ID: more fiber coverage, slower speeds
- Garfield, ID: more fiber coverage, slower speeds
Cities with Similar Populations
- Dellslow, WV: more fiber coverage, faster speeds
- Ansonia, OH: more fiber coverage, slower speeds
- Arkport, NY: more fiber coverage, slower speeds
- Atoka, NM: more fiber coverage, slower speeds
- Baden, MD: more fiber coverage, slower speeds
- Blanchard, MI: more fiber coverage, slower speeds
- White Swan, WA: more fiber coverage, slower speeds
- West Swanzey, NH: more fiber coverage, slower speeds
- Chinquapin, NC: more fiber coverage, faster speeds
- College Hill, MS: more fiber coverage, faster speeds


