In Sanilac County there are 4 residential DSL providers covering 59.98% of the county. The average home can get speeds up to 32 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 Sanilac County, MI.
To see availability maps for all providers including fiber, cable, DSL, and more in Sanilac County, MI please click below.
Sanilac County, MI Availability Maps
DSL Internet Service Providers in Sanilac 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 Sanilac County are not shown.
Sanilac 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 Sanilac County is DSL internet available?
DSL Internet Availability Key
DSL is available in 59.98% of Sanilac County. Areas in green have DSL 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 Sanilac County above to see who has service at your home.
How fast is DSL internet in Sanilac County?
The map below shows maximum DSL internet speeds by area in Sanilac County.
DSL Internet Speed Key
The average Sanilac County home can get up to 32 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 115 Mbps, which 3.80% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 42.39% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Sanilac County.
DSL internet speeds tend to be faster in the west parts of Sanilac County, and slower in the central areas of the county.
Is DSL the fastest internet I can get in Sanilac County?
The fastest internet for you may vary based on where in Sanilac County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 48.38% of Sanilac County homes.
- Cable is fastest for 43.59% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 7.64%.
- Satellite internet may be the only option for less than 1% of Sanilac County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Sanilac County, along with details on where in Sanilac County and at what speeds.
EarthLink DSL in Sanilac County, MI
EarthLink DSL coverage
About 27.21%, or 11,050 people, have EarthLink DSL internet available to them in the county. The company covers the southeast, central, east, west, northeast, north, south, and southwest Sanilac County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Sanilac County.
EarthLink DSL download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Sanilac County. Versus other DSL providers in the area, EarthLink DSL is one of the slowest. There are 2 different maximum speeds throughout Sanilac County. The fastest plan anyone in Sanilac County can order from EarthLink goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sanilac County customers is up to 10 Mbps.
Show all download speeds
- 2.0% up to 25.0 Mbps
- 98.0% up to 10.0 Mbps
EarthLink DSL upload speeds
In Sanilac County download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the slowest compared to other Sanilac County DSL providers. EarthLink 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 Sanilac County is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 1.1 Mbps.
Show all upload speeds
- 2.0% up to 5.0 Mbps
- 98.0% up to 1.0 Mbps
AT&T DSL in Sanilac County, MI
AT&T DSL coverage
About 27.21%, or 11,050 people, have AT&T DSL internet available to them in the county. The company covers the southeast, central, east, west, northeast, north, south, and southwest Sanilac County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Sanilac County.
AT&T DSL download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Sanilac County. Versus other DSL providers in the area, AT&T DSL is one of the slowest. There are 2 different maximum speeds throughout Sanilac County. The fastest plan anyone in Sanilac County can order from AT&T goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sanilac County customers is up to 10 Mbps.
Show all download speeds
- 2.0% up to 25.0 Mbps
- 98.0% up to 10.0 Mbps
AT&T DSL upload speeds
In Sanilac County download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the slowest compared to other Sanilac County DSL providers. AT&T 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 Sanilac County is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 1.1 Mbps.
Show all upload speeds
- 2.0% up to 5.0 Mbps
- 98.0% up to 1.0 Mbps
Frontier Communications DSL in Sanilac County, MI
Frontier DSL coverage
About 24.89%, or 10,108 people, have Frontier DSL internet available to them in the county. The company covers the southwest, north, northwest, south, southeast, northeast, and west Sanilac County area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Sanilac County.
Frontier Communications DSL download speeds
Frontier is below average when comparing download speeds to all other internet providers in Sanilac County. Versus other DSL providers in the area, Frontier DSL is above average. There are 5 different maximum speeds throughout Sanilac County. The fastest plan anyone in Sanilac County can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sanilac County customers is up to 44 Mbps.
Show all download speeds
- 15.3% up to 115.0 Mbps
- 10.5% up to 90.0 Mbps
- 11.9% up to 70.0 Mbps
- 6.4% up to 45.0 Mbps
- 56.0% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Sanilac County download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is below average where upload speeds are concerned, and average compared to other Sanilac County DSL providers. Frontier offers 4 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 Sanilac County is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 2.7 Mbps.
Show all upload speeds
- 15.3% up to 7.0 Mbps
- 10.5% up to 5.0 Mbps
- 18.3% up to 3.0 Mbps
- 56.0% up to 1.0 Mbps
Brightspeed DSL in Sanilac County, MI
Brightspeed DSL coverage
About 8.08%, or 3,282 people, have Brightspeed DSL internet available to them in the county. The company covers the west, northwest, and southwest Sanilac 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 Sanilac County.
Brightspeed DSL download speeds
Brightspeed is below average when comparing download speeds to all other internet providers in Sanilac County. Versus other DSL providers in the area, Brightspeed DSL is the fastest. There are 5 different maximum speeds throughout Sanilac County. The fastest plan anyone in Sanilac County can order from Brightspeed goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sanilac County customers is up to 69 Mbps.
Show all download speeds
- 47.2% up to 100.0 Mbps
- 19.8% up to 80.0 Mbps
- 3.1% up to 60.0 Mbps
- 5.1% up to 40.0 Mbps
- 24.8% up to 10.0 Mbps
Brightspeed DSL upload speeds
In Sanilac County download speeds tend to be faster than than upload speeds for Brightspeed DSL. Compared to other ISPs, Brightspeed is below average where upload speeds are concerned, and the fastest compared to other Sanilac County DSL providers. Brightspeed offers 4 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 Sanilac County is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Brightspeed customers can get speeds up to 7.3 Mbps.
Show all upload speeds
- 67.0% up to 10.0 Mbps
- 3.1% up to 5.0 Mbps
- 5.1% up to 3.0 Mbps
- 24.8% up to 1.0 Mbps
Sanilac County DSL by Area
This information is most helpful to those looking for homes or considering moving to Sanilac County or any of the areas nearby.
How does DSL internet in Sanilac County compare to the rest of Michigan?
DSL internet speeds in Sanilac County are much faster versus the average speeds in Michigan: 0.00 Mbps in Michigan versus 32 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Michigan is 0.00% versus 59.98% in Sanilac County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Sanilac 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
- Tuscola County, MI: more DSL coverage, faster speeds
- Saginaw County, MI: more DSL coverage, faster speeds
- Gratiot County, MI: less DSL coverage, slower speeds
- Montcalm County, MI: less DSL coverage, slower speeds
- Newaygo County, MI: less DSL coverage, slower speeds
- Muskegon County, MI: less DSL coverage, slower speeds
- Orleans County, NY: less DSL coverage, slower speeds
- Ozaukee County, WI: more DSL coverage, faster speeds
- Washington County, WI: more DSL coverage, faster speeds
- Dodge County, WI: more DSL coverage, slower speeds
Counties with Similar Populations
- Marshall County, IA: more DSL coverage, faster speeds
- Osage County, OK: more DSL coverage, faster speeds
- Oneida County, WI: more DSL coverage, faster speeds
- Okeechobee County, FL: more DSL coverage, slower speeds
- Montgomery County, NY: less DSL coverage, faster speeds
- Mifflin County, PA: less DSL coverage, faster speeds
- Mercer County, OH: less DSL coverage, slower speeds
- Mecosta County, MI: less DSL coverage, slower speeds
- McDowell County, NC: more DSL coverage, faster speeds
- McClain County, OK: more DSL coverage, faster speeds