In Markham there are 3 residential Fiber providers covering 58.52% of the city. The average home can get speeds up to 3,467 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 Markham, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Markham, IL please click below.
Fiber Internet Service Providers in Markham
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 Markham are not shown.
Markham 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 Markham is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 58.52% of Markham. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Markham above to see who has service at your home.
How fast is fiber internet in Markham?
The map below shows maximum fiber internet speeds by area in Markham.
Fiber Internet Speed Key
The average Markham home can get up to 3,467 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 5,000 Mbps, which 35.99% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 21.74% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Markham.
Fiber internet speeds tend to be faster in the central parts of Markham, and slower in the southeast areas of the city.
Is fiber the fastest internet I can get in Markham?
The fastest internet for you may vary based on where in Markham you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 35.99% of Markham homes.
- Cable is fastest for 63.87% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Markham homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Markham, along with details on where in Markham and at what speeds.
EarthLink Fiber in Markham, IL
EarthLink fiber coverage
About 57.73%, or 6,729 people, have EarthLink fiber internet available to them in the city. The company covers the northwest, north, southeast, central, west, southwest, east, and south Markham area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Markham.
EarthLink fiber download speeds
EarthLink is one of the fastest when comparing download speeds to all other internet providers in Markham. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are 2 different maximum speeds throughout Markham. The fastest plan anyone in Markham can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Markham customers is up to 3,494 Mbps.
Show all download speeds
- 62.3% up to 5,000.0 Mbps
- 37.7% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Markham download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Markham fiber providers. EarthLink offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Markham is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 3,494 Mbps.
Show all upload speeds
- 62.3% up to 5,000.0 Mbps
- 37.7% up to 1,000.0 Mbps
AT&T Fiber in Markham, IL
AT&T fiber coverage
About 57.73%, or 6,729 people, have AT&T fiber internet available to them in the city. The company covers the northwest, north, southeast, central, west, southwest, east, and south Markham area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Markham.
AT&T fiber download speeds
AT&T is one of the fastest when comparing download speeds to all other internet providers in Markham. Versus other fiber providers in the area, AT&T fiber is one of the fastest. There are 2 different maximum speeds throughout Markham. The fastest plan anyone in Markham can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Markham customers is up to 3,494 Mbps.
Show all download speeds
- 62.3% up to 5,000.0 Mbps
- 37.7% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Markham download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Markham fiber providers. AT&T offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Markham is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 3,494 Mbps.
Show all upload speeds
- 62.3% up to 5,000.0 Mbps
- 37.7% up to 1,000.0 Mbps
Astound Broadband Fiber in Markham, IL
Astound Broadband fiber coverage
About 3.41%, or 398 people, have Astound Broadband fiber internet available to them in the city. The company covers the northwest Markham area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Markham.
Astound Broadband fiber download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Markham. Versus other fiber providers in the area, Astound Broadband fiber is the slowest. There are no different maximum speeds throughout Markham. The fastest plan anyone in Markham can order from Astound Broadband goes up to 1,500 Mbps, and all Markham customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Astound Broadband fiber upload speeds
In Markham download speeds tend to be equal to than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is above average where upload speeds are concerned, and the slowest compared to other Markham fiber providers. Astound Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Markham is up to 1,500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,500.0 Mbps
Markham Fiber by Area
This information is most helpful to those looking for homes or considering moving to Markham or any of the areas nearby.
How does fiber internet in Markham compare to the rest of Illinois?
Fiber internet speeds in Markham are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 3,467 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Illinois is 0.00% versus 58.52% in Markham.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Markham 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
- Hazel Crest, IL: less fiber coverage, faster speeds
- Harvey, IL: less fiber coverage, slower speeds
- Posen, IL: less fiber coverage, faster speeds
- Dixmoor, IL: less fiber coverage, slower speeds
- Midlothian, IL: more fiber coverage, slower speeds
- Phoenix, IL: less fiber coverage, slower speeds
- Country Club Hills, IL: less fiber coverage, faster speeds
- Homewood, IL: less fiber coverage, faster speeds
- Robbins, IL: less fiber coverage, faster speeds
- Oak Forest, IL: less fiber coverage, faster speeds
Cities with Similar Populations
- Brookings, OR: more fiber coverage, faster speeds
- Castle Pines North, CO: less fiber coverage, slower speeds
- Carver, MA: less fiber coverage, slower speeds
- Carthage, MS: less fiber coverage, faster speeds
- Carroll, IA: more fiber coverage, slower speeds
- Cardiff By The Sea, CA: more fiber coverage, faster speeds
- Campobello, SC: more fiber coverage, slower speeds
- Cameron, MO: more fiber coverage, slower speeds
- Burr Ridge, IL: less fiber coverage, faster speeds
- Bunker Hill, WV: more fiber coverage, faster speeds