14 Best Internet Providers in Sanilac County, MI
Find internet availability by address in Sanilac County, MI
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Sanilac County ISP Report Card | Business Internet in Sanilac County
| Sanilac County ISP Report Card | B- | |
| Download Speed for Most Households | 1,066 Mbps | |
| Number of Internet Service Providers | 14 | |
| Real Sanilac County Customer Ratings | 2 |
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
Sanilac County has 14 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, Fixed Wireless, and DSL internet are available in the county. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Sanilac County.
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Sanilac County has 14 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, Fixed Wireless, and DSL internet are available in the county. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Sanilac County.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
XFINITY
Connection
Customer Rating
Cable
Highline
Connection
Customer Rating
Fiber
EarthLink
Connection
Customer Rating
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
DSL
Fixed Wireless
Above are the top 4 providers in Sanilac County, MI for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your county.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Sanilac County ratings may vary and are shown below.
Who is the Best Internet Provider in Sanilac County, MI?
XFINITY from Comcast is the best internet provider in Sanilac County based on Michigan customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, XFINITY from Comcast had the best reviews at the local, state, and national levels versus all available providers in Sanilac County, making it a solid recommendation among providers with reviews. XFINITY from Comcast is an option for 49.29% of the county.
Click here to get XFINITY from Comcast
or call 1-877-244-3013
The chart and table below show average customer ratings from customers in Sanilac County, Michigan, and customers throughout the country.
Top Rated Internet Providers in Sanilac County
Local, State, and National Ratings for all Sanilac County Internet Providers
| ISP / Tech Type | Sanilac County Overall | Michigan Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Agri-Valley Communications | (1) | (1) | (1) | View Plans | ||
| XFINITY | (1) | (109) | (2164) | View Plans | ||
| Highline | (0) | (1) | (2) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| AT&T | (0) | (24) | (924) | View Plans | ||
| Verizon | (0) | (8) | (723) | View Plans | ||
| Air Advantage | (0) | (1) | (1) | View Plans | ||
| Frontier | (0) | (3) | (143) | View Plans | ||
| Mercury Broadband | (0) | (1) | (3) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Brightspeed | (0) | (0) | (64) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Northern Broadband | (0) | (0) | (0) | View Plans | ||
| M3 Wireless | (0) | (0) | (0) | View Plans | ||
| TEC Fiber | (0) | (0) | (0) | View Plans |
Based on 163 reviews from Michigan internet customers, XFINITY from Comcast is the best internet service provider for Sanilac County residents. XFINITY from Comcast was rated at an average of 3.26 out of 5 in our report for overall customer satisfaction. Agri-Valley Communications wins for second-place in Michigan, with 4.00 out of 5 stars and 79.2% coverage in Sanilac County.
At a national level, based on 4350 national reviews for any of the providers listed above, Highline is rated higher than any other provider, with a rating of 5.00 out of 5.
Which Providers are Available at my Home in Sanilac County?
a different provider.

Internet Availability Key
Speeds and coverage vary within the county, and sometimes even from block to block. The map shows speeds per provider and where each provider is available.
Who is the Fastest Internet Provider in Sanilac County?
Based on both FCC data and unbiased customer ratings in Sanilac County, the fastest internet in the county comes from XFINITY from Comcast.
Data Reported to FCC by ISPs: Average Maximum Available in Sanilac County
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| Brightspeed | 2,000 Mbps | ||
| XFINITY from Comcast | 1,200 Mbps | ||
| TEC Fiber | 1,000 Mbps | ||
| Highline | 1,000 Mbps | ||
| Air Advantage | 1,000 Mbps | ||
| Agri-Valley Communications | 1,000 Mbps | ||
| Verizon | 300 Mbps | ||
| M3 Wireless | 200 Mbps | ||
| Mercury Broadband | 150 Mbps | ||
| Frontier Communications | 115 Mbps | ||
| Northern Broadband | 100 Mbps | ||
| AT&T | 100 Mbps | ||
| EarthLink | 100 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Sanilac County
| ISP / Tech Type | Sanilac County Speed | Michigan Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| XFINITY | (1) | (109) | (2164) | View Plans | ||
| Agri-Valley Communications | (1) | (1) | (1) | View Plans | ||
| Highline | (0) | (1) | (2) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| Verizon | (0) | (8) | (723) | View Plans | ||
| AT&T | (0) | (24) | (924) | View Plans | ||
| Mercury Broadband | (0) | (1) | (3) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Air Advantage | (0) | (1) | (1) | View Plans | ||
| Frontier | (0) | (3) | (143) | View Plans | ||
| Brightspeed | (0) | (0) | (64) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Northern Broadband | (0) | (0) | (0) | View Plans | ||
| M3 Wireless | (0) | (0) | (0) | View Plans | ||
| TEC Fiber | (0) | (0) | (0) | View Plans |
Based on data reported by Sanilac County ISPs to the FCC, the fastest speeds in the county are available through XFINITY from Comcast. The company offers speeds up to 2,000 Mbps in Sanilac County. Therefore, the average customer can get up to 1,199 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
However, actual customers in the county rated their satisfaction with internet speed highest with XFINITY from Comcast. This indicates XFINITY reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in Sanilac County?
Michigan customers rate XFINITY from Comcast as the cheapest internet service provider in state. Data comes from customers in the state rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
XFINITY from Comcast received a local rating of 3.00 out of 5, which is much lower than the average across all internet providers in the country. Agri-Valley Communications is rated in second place for affordability by the company’s Sanilac County customers with an average price rating of 3.00 out of 5.
The chart and graph below show how customers in Sanilac County, Michigan, and the United States rated the affordability of their internet service.
Rated Affordability in Sanilac County
| ISP / Tech Type | Sanilac County Affordability | Michigan Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Agri-Valley Communications | (1) | (1) | (1) | View Plans | ||
| XFINITY | (1) | (109) | (2164) | View Plans | ||
| Highline | (0) | (1) | (2) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| AT&T | (0) | (24) | (924) | View Plans | ||
| Air Advantage | (0) | (1) | (1) | View Plans | ||
| Verizon | (0) | (8) | (723) | View Plans | ||
| Frontier | (0) | (3) | (143) | View Plans | ||
| Mercury Broadband | (0) | (1) | (3) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Brightspeed | (0) | (0) | (64) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Northern Broadband | (0) | (0) | (0) | View Plans | ||
| M3 Wireless | (0) | (0) | (0) | View Plans | ||
| TEC Fiber | (0) | (0) | (0) | View Plans |
Sanilac County Internet Health Assessment
ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the county and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for Sanilac County below, including the metrics used and how Sanilac County compares to the rest of Michigan and nation.
| Metric
(hover for details)
|
Sanilac County | Michigan | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Sanilac County that have a Fiber internet connection available to their home. | 78.01% | 44.81% | 67.25% | ||
| Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area. | 1,066 Mbps | 2,523 Mbps | 3,293 Mbps | ||
| Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for Sanilac County. | 6.1 | 6.5 | 6.8 |
| Average Household SizeA larger household size in a county indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.3 | 2.5 | 2.7 | ||
| Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city. | 8% | 12% | 14% | ||
| Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households. | 91% | 95% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 84% | 90% | 90% | ||
| Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households. | 49% | 72% | 75% | ||
| Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service. | 49% | 73% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Sanilac County ISP Report Card & Digital Connectivity Index
The ISP Report Card in Sanilac County is B-, which is worse than other counties. The local demand for broadband internet connectivity in Sanilac County is high with a score of 29 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Sanilac County have done a poor job meeting the needs of its residents.
The Sanilac County ISP Report Card evaluates the county on availability and speed metrics compared to other counties in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a county needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.
84% of Sanilac County households have an internet connection despite having 99.83% availability. 49% of households have fiber, cable, or DSL, 19% have satellite, 0% are still on dial-up, and 2% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.
As you can see in the table above, while 49% of households have a broadband connection such as fiber, cable or DSL available to their home, 49% subscribe to it. A low number of Sanilac County residents are taking advantage of the available internet infrastructure.
For more details, please visit our ISP Report Card and Digital Connectivity Index pages.
How do Neighboring Counties Compare to Sanilac County?
- ISP Report Card: C+
- Digital Connectivity Index: 33 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 55 / 100
- ISP Report Card: B
- Digital Connectivity Index: 42 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 43 / 100
- ISP Report Card: C
- Digital Connectivity Index: 33 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 48 / 100
- ISP Report Card: D
- Digital Connectivity Index: 52 / 100
- ISP Report Card: B
- Digital Connectivity Index: 74 / 100
- ISP Report Card: B
- Digital Connectivity Index: 67 / 100
How Much Speed does a Sanilac County Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Sanilac County is 2.3, which is smaller than the Michigan average of 2.5 and smaller than the national average of 2.7. Sanilac County's average household income is $59,228 which is lower than the Michigan average of $80,476 and lower than the national average of $90,606. Homes with fewer people living in them and with lower incomes tend to indicate fewer devices being used less often.
Sanilac County also has 11% of its population enrolled in school between the 6th grade and college level, this is lower than the Michigan average of 15%. Additionally, 8% of residents work from home, which is lower than the 12% of residents in Michigan who work from home. This and other factors you can see above show us that the community of Sanilac County has a very low need for internet connectivity and speeds.
Compared to the rest of the country, Sanilac County households are more technology-disengaged. 91% of households have some sort of computing device, 73% have desktops or laptops in the home, and 86% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in Sanilac County?
Highline Fiber in Sanilac County, MI
Highline offers Fiber service to 38.9% of Sanilac County homes. Across the county, Highline Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
TEC Fiber in Sanilac County, MI
TEC Fiber offers Fiber service to 27.0% of Sanilac County homes. Across the county, TEC Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Agri-Valley Communications Fiber in Sanilac County, MI
Agri-Valley Communications offers Fiber service to 22.1% of Sanilac County homes. Across the county, Agri-Valley Communications Fiber has speeds up to 542 Mbps, with speeds from 300 Mpbs up to 1,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for Agri-Valley Communications Fiber.
Air Advantage Fiber in Sanilac County, MI
Air Advantage offers Fiber service to 11.3% of Sanilac County homes. Across the county, Air Advantage Fiber has speeds up to 1,000 Mbps
Brightspeed Fiber in Sanilac County, MI
Brightspeed offers Fiber service to 5.2% of Sanilac County homes. Across the county, Brightspeed Fiber has speeds up to 2,000 Mbps
Which Cable Internet Providers are Available in Sanilac County?
XFINITY Cable in Sanilac County, MI
XFINITY from Comcast offers Cable service to 48.9% of Sanilac County homes. Across the county, XFINITY Cable is the only type of service available from the company, with speeds up to 1,200 Mbps
Which DSL Internet Providers are Available in Sanilac County?
EarthLink DSL in Sanilac County, MI
EarthLink offers DSL service to 27.2% of Sanilac County homes. Across the county, EarthLink DSL has speeds up to 10 Mbps, with speeds from 10 Mpbs up to 25 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 5.0, with an average of 1.1 Mbps throughout the county. EarthLink DSL is rated the same as other types of internet service available in Sanilac County from EarthLink in terms of customer satisfaction.
AT&T DSL in Sanilac County, MI
AT&T offers DSL service to 27.2% of Sanilac County homes. Across the county, AT&T DSL has speeds up to 10 Mbps, with speeds from 10 Mpbs up to 25 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 5.0, with an average of 1.1 Mbps throughout the county. AT&T DSL is rated about the same as other types of internet service available in Sanilac County from AT&T in terms of customer satisfaction.
Frontier DSL in Sanilac County, MI
Frontier Communications offers DSL service to 24.9% of Sanilac County homes. Across the county, Frontier DSL is the only type of service available from the company, with speeds up to 44 Mbps, with speeds from 10 Mpbs up to 115 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 7.0, with an average of 2.7 Mbps throughout the county.
Brightspeed DSL in Sanilac County, MI
Brightspeed offers DSL service to 8.1% of Sanilac County homes. Across the county, Brightspeed DSL has speeds up to 69 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 10, with an average of 7.3 Mbps throughout the county. Brightspeed DSL is rated lower than other types of internet service available in Sanilac County from Brightspeed in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Sanilac County?
M3 Wireless Fixed Wireless in Sanilac County, MI
M3 Wireless offers Fixed Wireless service to 85.0% of Sanilac County homes. Across the county, M3 Wireless Fixed Wireless is the only type of service available from the company, with speeds up to 100 Mbps
Agri-Valley Communications Fixed Wireless in Sanilac County, MI
Agri-Valley Communications offers Fixed Wireless service to 72.4% of Sanilac County homes. Across the county, Agri-Valley Communications Fixed Wireless has speeds up to 32 Mbps, with speeds from 10 Mpbs up to 50 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 7.0, with an average of 4.5 Mbps throughout the county.
Air Advantage Fixed Wireless in Sanilac County, MI
Air Advantage offers Fixed Wireless service to 71.9% of Sanilac County homes. Across the county, Air Advantage Fixed Wireless has speeds up to 12 Mbps, with speeds from 10 Mpbs up to 250 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 50, with an average of 1.4 Mbps throughout the county.
T-Mobile Home Internet Fixed Wireless in Sanilac County, MI
T-Mobile Home Internet offers Fixed Wireless service to 59.2% of Sanilac County homes. Across the county, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 58 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 10 Mbps throughout the county.
EarthLink Fixed Wireless in Sanilac County, MI
EarthLink offers Fixed Wireless service to 25.4% of Sanilac County homes. Across the county, EarthLink Fixed Wireless has speeds up to 33 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 5.0 Mbps throughout the county.
AT&T Fixed Wireless in Sanilac County, MI
AT&T offers Fixed Wireless service to 25.4% of Sanilac County homes. Across the county, AT&T Fixed Wireless has speeds up to 33 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 5.0 Mbps throughout the county.
Mercury Broadband Fixed Wireless in Sanilac County, MI
Mercury Broadband offers Fixed Wireless service to 22.0% of Sanilac County homes. Across the county, Mercury Broadband Fixed Wireless is the only type of service available from the company, with speeds up to 150 Mbps
Northern Broadband Fixed Wireless in Sanilac County, MI
Northern Broadband offers Fixed Wireless service to 4.5% of Sanilac County homes. Across the county, Northern Broadband Fixed Wireless is the only type of service available from the company, with speeds up to 100 Mbps
Verizon Fixed Wireless in Sanilac County, MI
Verizon offers Fixed Wireless service to 1.0% of Sanilac County homes. Across the county, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
Which ISP Should You Choose in Sanilac County?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Sanilac County is XFINITY.
- The fastest internet provider should be XFINITY from Comcast. Considering speed for the money and reliability in speeds, XFINITY from Comcast may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Sanilac County is XFINITY.
- Viasat, M3 Wireless, and HughesNet has the broadest coverage in Sanilac County, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.
How does Sanilac County compare to other cities with a similar population?
To see how Sanilac County stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to Sanilac County's B- ISP Report Card and 29 / 100 Digital Connectivity Index.
- ISP Report Card: A-
- Digital Connectivity Index: 50 / 100
- ISP Report Card: B
- Digital Connectivity Index: 42 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 45 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 49 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 52 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 40 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 60 / 100
- ISP Report Card: C
- Digital Connectivity Index: 33 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 34 / 100