In Grantsburg there are 4 residential Fiber providers covering 74.93% of the city. The average home can get speeds up to 4,679 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 Grantsburg, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Grantsburg, IL please click below.
Grantsburg, IL Availability Maps
Fiber Internet Service Providers in Grantsburg
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 Grantsburg are not shown.
Grantsburg 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 Grantsburg is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 74.93% of Grantsburg. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is ProTek Communications. Call one of the companies with service in Grantsburg above to see who has service at your home.
How fast is fiber internet in Grantsburg?
The map below shows maximum fiber internet speeds by area in Grantsburg.
Fiber Internet Speed Key
The average Grantsburg home can get up to 4,679 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 10,000 Mbps, which 19.84% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 25.07% of homes can only purchase plans up to 500 Mbps. See the internet provider details below for info about their speed and coverage in Grantsburg.
Fiber internet speeds tend to be faster in the southwest parts of Grantsburg, and slower in the east areas of the city.
Is fiber the fastest internet I can get in Grantsburg?
The fastest internet for you may vary based on where in Grantsburg you live. In general, fixed wireless competes most often with fiber in the city.
- Fiber is the fastest internet type for 74.93% of Grantsburg homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 25.07%.
- Satellite internet may be the only option for less than 1% of Grantsburg homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Grantsburg, along with details on where in Grantsburg and at what speeds.
Shawnee Communications Fiber in Grantsburg, IL
Shawnee Communications fiber coverage
About 40.99%, or 157 people, have Shawnee Communications fiber internet available to them in the city. The company covers the central, northeast, east, and southeast Grantsburg area. Shawnee Communications is a large internet service provider internet service providers in the US, with internet service available in some of Grantsburg.
Shawnee Communications fiber download speeds
Shawnee Communications is below average when comparing download speeds to all other internet providers in Grantsburg. Versus other fiber providers in the area, Shawnee Communications fiber is the slowest. There are 2 different maximum speeds throughout Grantsburg. The fastest plan anyone in Grantsburg can order from Shawnee Communications goes up to 1,000 Mbps, the slowest package only goes up to 500 Mbps, and the city-wide average maximum speed for Grantsburg customers is up to 532 Mbps.
Show all download speeds
- 6.4% up to 1,000.0 Mbps
- 93.6% up to 500.0 Mbps
Shawnee Communications fiber upload speeds
In Grantsburg download speeds tend to be faster than than upload speeds for Shawnee Communications fiber. Compared to other ISPs, Shawnee Communications is below average where upload speeds are concerned, and the slowest compared to other Grantsburg fiber providers. Shawnee Communications offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Grantsburg is up to 500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 500.0 Mbps
Frontier Communications Fiber in Grantsburg, IL
Frontier fiber coverage
About 36.81%, or 141 people, have Frontier fiber internet available to them in the city. The company covers the north, northeast, west, southwest, and northwest Grantsburg area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in some of Grantsburg.
Frontier Communications fiber download speeds
Frontier is above average when comparing download speeds to all other internet providers in Grantsburg. Versus other fiber providers in the area, Frontier fiber is below average. There are no different maximum speeds throughout Grantsburg. The fastest plan anyone in Grantsburg can order from Frontier goes up to 5,000 Mbps, and all Grantsburg customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
Frontier Communications fiber upload speeds
In Grantsburg download speeds tend to be equal to than upload speeds for Frontier fiber. Compared to other ISPs, Frontier is above average where upload speeds are concerned, and below average compared to other Grantsburg fiber providers. Frontier offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Grantsburg is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
ProTek Communications Fiber in Grantsburg, IL
ProTek Communications fiber coverage
About 19.84%, or 76 people, have ProTek Communications fiber internet available to them in the city. The company covers the southwest, west, and south Grantsburg area. ProTek Communications is an average-sized internet service provider internet service providers in the US, with internet service available in a small portion of Grantsburg.
ProTek Communications fiber download speeds
ProTek Communications is the fastest when comparing download speeds to all other internet providers in Grantsburg. Versus other fiber providers in the area, ProTek Communications fiber is the fastest. There are no different maximum speeds throughout Grantsburg. The fastest plan anyone in Grantsburg can order from ProTek Communications goes up to 10,000 Mbps, and all Grantsburg customers can get this speed.
Show all download speeds
- 100.0% up to 10,000.0 Mbps
ProTek Communications fiber upload speeds
In Grantsburg download speeds tend to be equal to than upload speeds for ProTek Communications fiber. Compared to other ISPs, ProTek Communications is the fastest where upload speeds are concerned, and the fastest compared to other Grantsburg fiber providers. ProTek Communications offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Grantsburg is up to 10,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10,000.0 Mbps
Sparklight Fiber in Grantsburg, IL
Sparklight fiber coverage
About 10.44%, or 40 people, have Sparklight fiber internet available to them in the city. The company covers the southwest and south Grantsburg 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 Grantsburg.
Sparklight fiber download speeds
Sparklight is above average when comparing download speeds to all other internet providers in Grantsburg. Versus other fiber providers in the area, Sparklight fiber is above average. There are no different maximum speeds throughout Grantsburg. The fastest plan anyone in Grantsburg can order from Sparklight goes up to 7,000 Mbps, and all Grantsburg customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Sparklight fiber upload speeds
In Grantsburg download speeds tend to be equal to than upload speeds for Sparklight fiber. Compared to other ISPs, Sparklight is above average where upload speeds are concerned, and above average compared to other Grantsburg fiber providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Grantsburg is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
Grantsburg Fiber by Area
This information is most helpful to those looking for homes or considering moving to Grantsburg or any of the areas nearby.
How does fiber internet in Grantsburg compare to the rest of Illinois?
Fiber internet speeds in Grantsburg are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 4,679 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Illinois is 0.00% versus 74.93% in Grantsburg.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Grantsburg 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
- Ganntown, IL: more fiber coverage, faster speeds
- Reevesville, IL: more fiber coverage, slower speeds
- Wartrace, IL: less fiber coverage, slower speeds
- Crossroads, IL: more fiber coverage, faster speeds
- New Columbia, IL: more fiber coverage, faster speeds
- Grinnell, IL: more fiber coverage, faster speeds
- Simpson, IL: more fiber coverage, slower speeds
- Brownfield, IL: more fiber coverage, faster speeds
- Rock, IL: more fiber coverage, faster speeds
- Belknap, IL: less fiber coverage, faster speeds
Cities with Similar Populations
- Chittum, TN: more fiber coverage, slower speeds
- West Unity, NH: more fiber coverage, slower speeds
- West Springs, SC: less fiber coverage, slower speeds
- West Grove, IA: more fiber coverage, slower speeds
- Upshaw, VA: less fiber coverage, slower speeds
- Unionville, LA: less fiber coverage, slower speeds
- Tisch Mills, WI: less fiber coverage, slower speeds
- Timberon, NM: less fiber coverage, slower speeds
- Thurston, NY: less fiber coverage, slower speeds
- Cooper Heights, GA: more fiber coverage, slower speeds