In Sauk County there are 6 residential Fiber providers covering 70.35% of the county. The average home can get speeds up to 1,667 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 Sauk County, WI.
To see availability maps for all providers including fiber, cable, DSL, and more in Sauk County, WI please click below.
Sauk County, WI Availability Maps
Fiber Internet Service Providers in Sauk 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 Sauk County are not shown.
Sauk 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 Sauk County is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 70.35% of Sauk County. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Frontier. Call one of the companies with service in Sauk County above to see who has service at your home.
How fast is fiber internet in Sauk County?
The map below shows maximum fiber internet speeds by area in Sauk County.
Fiber Internet Speed Key
The average Sauk County home can get up to 1,667 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 7,000 Mbps, which 7.82% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Sauk County.
Fiber internet speeds tend to be faster in the southeast parts of Sauk County, and slower in the east areas of the county.
Is fiber the fastest internet I can get in Sauk County?
The fastest internet for you may vary based on where in Sauk County you live. In general, cable competes most often with fiber in the county.
- Fiber is the fastest internet type for 70.29% of Sauk County homes.
- Cable is fastest for 23.31% of the county.
- DSL is fastest for 3.03%.
- Fixed wireless is fastest for 3.07%.
- Satellite internet may be the only option for less than 1% of Sauk County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Sauk County, along with details on where in Sauk County and at what speeds.
Reedsburg Utility Commission Fiber in Sauk County, WI
Reedsburg Utility Commission fiber coverage
About 44.05%, or 28,970 people, have Reedsburg Utility Commission fiber internet available to them in the county. The company covers the north, southwest, west, northwest, central, east, northeast, and south Sauk County area. Reedsburg Utility Commission is an average-sized internet service provider internet service providers in the US, with internet service available in some of Sauk County.
Reedsburg Utility Commission fiber download speeds
Reedsburg Utility Commission is above average when comparing download speeds to all other internet providers in Sauk County. Versus other fiber providers in the area, Reedsburg Utility Commission fiber is below average. There are no different maximum speeds throughout Sauk County. The fastest plan anyone in Sauk County can order from Reedsburg Utility Commission goes up to 1,000 Mbps, and all Sauk County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Reedsburg Utility Commission fiber upload speeds
In Sauk County download speeds tend to be equal to than upload speeds for Reedsburg Utility Commission fiber. Compared to other ISPs, Reedsburg Utility Commission is above average where upload speeds are concerned, and below average compared to other Sauk County fiber providers. Reedsburg Utility Commission offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sauk 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
TDS Fiber in Sauk County, WI
TDS fiber coverage
About 17.76%, or 11,679 people, have TDS fiber internet available to them in the county. The company covers the southeast, south, and east Sauk County area. TDS is a large internet service provider internet service providers in the US, with internet service available in a small portion of Sauk County.
TDS fiber download speeds
TDS is above average when comparing download speeds to all other internet providers in Sauk County. Versus other fiber providers in the area, TDS fiber is below average. There are no different maximum speeds throughout Sauk County. The fastest plan anyone in Sauk County can order from TDS goes up to 1,000 Mbps, and all Sauk County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
TDS fiber upload speeds
In Sauk County download speeds tend to be equal to than upload speeds for TDS fiber. Compared to other ISPs, TDS is above average where upload speeds are concerned, and below average compared to other Sauk County fiber providers. TDS offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sauk 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
Frontier Communications Fiber in Sauk County, WI
Frontier fiber coverage
About 7.82%, or 5,145 people, have Frontier fiber internet available to them in the county. The company covers the southeast Sauk County area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Sauk County.
Frontier Communications fiber download speeds
Frontier is the fastest when comparing download speeds to all other internet providers in Sauk County. Versus other fiber providers in the area, Frontier fiber is the fastest. There are no different maximum speeds throughout Sauk County. The fastest plan anyone in Sauk County can order from Frontier goes up to 7,000 Mbps, and all Sauk County customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Frontier Communications fiber upload speeds
In Sauk County download speeds tend to be equal to than upload speeds for Frontier fiber. Compared to other ISPs, Frontier is the fastest where upload speeds are concerned, and the fastest compared to other Sauk County fiber providers. Frontier offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sauk County is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
LaValle Telephone Cooperative Fiber in Sauk County, WI
LaValle Telephone Cooperative fiber coverage
About 6.09%, or 4,007 people, have LaValle Telephone Cooperative fiber internet available to them in the county. The company covers the northwest and west Sauk County area. LaValle Telephone Cooperative is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Sauk County.
LaValle Telephone Cooperative fiber download speeds
LaValle Telephone Cooperative is above average when comparing download speeds to all other internet providers in Sauk County. Versus other fiber providers in the area, LaValle Telephone Cooperative fiber is below average. There are no different maximum speeds throughout Sauk County. The fastest plan anyone in Sauk County can order from LaValle Telephone Cooperative goes up to 1,000 Mbps, and all Sauk County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
LaValle Telephone Cooperative fiber upload speeds
In Sauk County download speeds tend to be equal to than upload speeds for LaValle Telephone Cooperative fiber. Compared to other ISPs, LaValle Telephone Cooperative is above average where upload speeds are concerned, and below average compared to other Sauk County fiber providers. LaValle Telephone Cooperative offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sauk 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
Brightspeed Fiber in Sauk County, WI
Brightspeed fiber coverage
About 4.32%, or 2,841 people, have Brightspeed fiber internet available to them in the county. The company covers the east, central, and southeast Sauk County area. Brightspeed is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Sauk County.
Brightspeed fiber download speeds
Brightspeed is above average when comparing download speeds to all other internet providers in Sauk County. Versus other fiber providers in the area, Brightspeed fiber is the slowest. There are 3 different maximum speeds throughout Sauk County. The fastest plan anyone in Sauk County can order from Brightspeed goes up to 1,000 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sauk County customers is up to 992 Mbps.
Show all download speeds
- 91.3% up to 1,000.0 Mbps
- 8.3% up to 940.0 Mbps
- 0.4% up to 10.0 Mbps
Brightspeed fiber upload speeds
In Sauk County download speeds tend to be faster than than upload speeds for Brightspeed fiber. Compared to other ISPs, Brightspeed is above average where upload speeds are concerned, and below average compared to other Sauk County fiber providers. Brightspeed offers 3 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 Sauk County is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Brightspeed customers can get speeds up to 991 Mbps.
Show all upload speeds
- 91.3% up to 1,000.0 Mbps
- 8.3% up to 940.0 Mbps
- 0.4% up to 1.0 Mbps
Spectrum Fiber in Sauk County, WI
Spectrum fiber coverage
About 2.54%, or 1,671 people, have Spectrum fiber internet available to them in the county. The company covers the east, north, southeast, west, southwest, central, and south Sauk County area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Sauk County.
Spectrum fiber download speeds
Spectrum is above average when comparing download speeds to all other internet providers in Sauk County. Versus other fiber providers in the area, Spectrum fiber is below average. There are no different maximum speeds throughout Sauk County. The fastest plan anyone in Sauk County can order from Spectrum goes up to 1,000 Mbps, and all Sauk County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In Sauk County download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the slowest compared to other Sauk County fiber providers. Spectrum 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 Sauk County is up to 500 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, Spectrum customers can get speeds up to 398 Mbps.
Show all upload speeds
- 78.2% up to 500.0 Mbps
- 21.8% up to 35.0 Mbps
Sauk County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Sauk County or any of the areas nearby.
How does fiber internet in Sauk County compare to the rest of Wisconsin?
Fiber internet speeds in Sauk County are much faster versus the average speeds in Wisconsin: 0.00 Mbps in Wisconsin versus 1,667 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in Wisconsin is 0.00% versus 70.35% in Sauk County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Sauk 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
- Columbia County, WI: less fiber coverage, faster speeds
- Richland County, WI: more fiber coverage, faster speeds
- Dodge County, WI: less fiber coverage, slower speeds
- Washington County, WI: less fiber coverage, faster speeds
- Ozaukee County, WI: less fiber coverage, faster speeds
- Howard County, IA: less fiber coverage, faster speeds
- Mitchell County, IA: less fiber coverage, faster speeds
- Worth County, IA: more fiber coverage, slower speeds
- Winnebago County, IA: more fiber coverage, slower speeds
- Newaygo County, MI: less fiber coverage, slower speeds
Counties with Similar Populations
- Sampson County, NC: more fiber coverage, slower speeds
- Lawrence County, OH: less fiber coverage, slower speeds
- Lea County, NM: more fiber coverage, slower speeds
- Acadia Parish, LA: less fiber coverage, faster speeds
- Lonoke County, AR: more fiber coverage, slower speeds
- Lowndes County, MS: more fiber coverage, faster speeds
- Putnam County, WV: more fiber coverage, faster speeds
- Rutherford County, NC: more fiber coverage, slower speeds
- Salem County, NJ: less fiber coverage, slower speeds
- Laurens County, SC: less fiber coverage, slower speeds