Michigan · County profile
Internet providers in Sanilac County, MI
Agri-Valley Communications, Inc. reports service to most homes in Sanilac County; 9 more providers report service in some areas. Satellite service is available almost everywhere.
Check what's available at your address
Type your ZIP code to see the providers reported near you in Sanilac County. Then call to confirm plans at your exact address.
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Who serves this area
Providers that serve Sanilac County
Each card says whether the provider reports service to most homes here or only in some areas. Many homes can choose more than one provider; call to check plans and prices at your address.
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Agri-Valley Communications, Inc.
Available
Reports service to most homes in Sanilac County.
Call to check plans and price (815) 934-8169 -
XfinityCable
Available in some areas
Reports service to part of Sanilac County; check your street.
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Air Advantage, LLC
Available in some areas
Reports service to part of Sanilac County; check your street.
Call to check plans and price (815) 934-8169 -
T-MobileFixed wireless
Available in some areas
Reports service to part of Sanilac County; check your street.
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Aspire Networks 1, LLC
Available in some areas
Reports service to part of Sanilac County; check your street.
Call to check plans and price (815) 934-8169 -
AT&T
Available in some areas
Reports service to part of Sanilac County; check your street.
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Thumb Electric Cooperative
Available in some areas
Reports service to part of Sanilac County; check your street.
Call to check plans and price (815) 934-8169 -
Mercury Broadband
Available in some areas
Reports service to part of Sanilac County; check your street.
Call to check plans and price (815) 934-8169 -
Frontier
Available in some areas
Reports service to part of Sanilac County; check your street.
Call to check plans and price (815) 934-8169 -
Brightspeed
Available in some areas
Reports service to part of Sanilac County; check your street.
Call to check plans and price (815) 934-8169
3 more providers report smaller service areas; see the table.
Available almost everywhere satellite, shown separately
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HughesnetSatellite
Available almost everywhere by satellite
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ViasatSatellite
Available almost everywhere by satellite
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StarlinkSatellite
Available almost everywhere by satellite
Show all 16 providers as a table
| Provider | Availability | Main technology | Company |
|---|---|---|---|
| Agri-Valley Communications, Inc. | Available | Not specified | Agri-Valley Communications, Inc. |
| Xfinity | Available in some areas | Cable | Comcast Corporation |
| Air Advantage, LLC | Available in some areas | Not specified | Air Advantage, LLC |
| T-Mobile | Available in some areas | Fixed wireless | T-Mobile USA, Inc. |
| Aspire Networks 1, LLC | Available in some areas | Not specified | Aspire Networks 1, LLC |
| AT&T | Available in some areas | Not specified | AT&T Inc. |
| Thumb Electric Cooperative | Available in some areas | Not specified | Thumb Electric Cooperative |
| Mercury Broadband | Available in some areas | Not specified | Mercury Broadband, LLC |
| Frontier | Available in some areas | Not specified | Frontier Communications Corporation |
| Brightspeed | Available in some areas | Not specified | Connect Holding II LLC |
| Verizon | Reported for a few homes only | Not specified | Verizon Communications Inc. |
| Northern Broadband | Reported for a few homes only | Not specified | Northern Broadband |
| M3 Wireless | Reported for a few homes only | Not specified | M3 Wireless |
| Hughesnet | Available almost everywhere (satellite) | Satellite | EchoStar Corporation |
| Viasat | Available almost everywhere (satellite) | Satellite | Viasat, Inc. |
| Starlink | Available almost everywhere (satellite) | Satellite | Space Exploration Technologies Corp. |
Source: FCC National Broadband Map, provider filings as of December 30, 2025 · How we use the data
Town by town
Towns and cities in Sanilac County
| Town | Locations | Providers |
|---|---|---|
| Brown City | 723 | 11 |
| Croswell | 1,223 | 8 |
| Lexington | 1,099 | 8 |
| Marlette | 1,032 | 9 |
| Sandusky | 1,435 | 8 |
Where this comes fromFCC filings and how to check one address
Check service at your address
The figures on this page summarize what providers reported to the FCC for all homes in Sanilac County. They do not confirm that any provider serves a particular address, and providers' reports can overstate coverage. Two ways to check your own address:
- Search your address on the FCC National Broadband Map.
- Call (815) 934-8169 and we will look up the providers and plans available at your address. We are an independent service, not your provider.
Sources
Provider availability comes from the FCC National Broadband Map (provider filings as of December 30, 2025): a provider is "available" where its filing covers most homes and "available in some areas" where it covers part of them. Household counts come from the Census Bureau's American Community Survey (ACS 5-year 2020-2024), which are estimates with margins of error.
- FCC National Broadband Map — Broadband Data Collection public data (D25 filing, released 2026-09-29). Data as of December 30, 2025; retrieved October 9, 2026.
- U.S. Census Bureau, American Community Survey 5-year 2020-2024 estimates (tables B01003, B25001, B19013, B28002). Data as of ACS 5-year 2020-2024; retrieved October 9, 2026.
- U.S. Census Bureau 2024 Gazetteer Files (town locations) and 2020 Census block files (which county each town lies in). Data as of January 1, 2024 boundaries (Gazetteer); 2020 Census blocks; retrieved October 9, 2026.
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