Internet providers in Markham, IL
Markham is a city in Illinois with about 11,434 residents and roughly 5,698 residential locations that internet providers can report on. The table below compares the providers that report service here.
Compare internet providers in Markham, IL
Share of residential locations in Markham where each provider reports service, from the FCC National Broadband Map (data as of December 31, 2025). Availability depends on your exact address.
| # | Provider | Technology (varies by address) | Locations covered | |
|---|---|---|---|---|
| 1 | Xfinity | Cable | 99% | |
| 2 | AT&T | Fiber, DSL, Fixed wireless | 94% | Check availability |
| 3 | T-Mobile Home Internet | Fixed wireless | 87% | |
| 4 | Verizon | Fiber, Fixed wireless | 65% | Check availability |
| 5 | Astound Broadband | Fiber, Cable | <1% |
Satellite internet
| 1 | HughesNet | Satellite | 99%+ | |
| 2 | Viasat | Satellite | 99%+ | |
| 3 | Starlink | Satellite | 99%+ |
Satellite service is available at nearly every address but typically has higher latency than wired options.
Provider-reported coverage does not guarantee service or speeds at a specific address. Some "Check availability" links are affiliate links; we may earn a commission at no cost to you. How we make money.
What to know about internet in Markham
Xfinity reports service to the most residential locations in Markham, about 99%. 4 providers report coverage of at least half of locations (Xfinity, AT&T, T-Mobile Home Internet, and Verizon), so the market looks competitive. T-Mobile Home Internet offers fixed wireless home internet, an option if you prefer no cable or fiber installation.
What technologies are available in Markham?
Fiber reaches about 47% of locations in Markham, so it is available in parts of the area but not everywhere. Gigabit-class service (1,000 Mbps down) is reported for about 99% of locations. DSL is still reported for about 64% of locations, which can be a fallback where fiber and cable do not reach. Fixed wireless home internet is reported for about 90% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Markham that providers report they can serve. City-level figures, not your address.
Markham at a glance
About 91% of households in Markham have a broadband subscription, 1 points above the Illinois average of 89%.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023).
Internet providers in places near Markham
- Hazel Crest, IL (2 mi)
- Harvey, IL (2 mi)
- Midlothian, IL (2 mi)
- Country Club Hills, IL (3 mi)
- Homewood, IL (3 mi)
- Oak Forest, IL (3 mi)
- Blue Island, IL (4 mi)
- Crestwood, IL (4 mi)
- Riverdale, IL (4 mi)
- South Holland, IL (5 mi)
- Dolton, IL (5 mi)
- Alsip, IL (5 mi)
- Tinley Park, IL (6 mi)
- Chicago Heights, IL (7 mi)
- Matteson, IL (7 mi)
- Palos Heights, IL (7 mi)
- Lansing, IL (8 mi)
- Calumet City, IL (8 mi)
- Worth, IL (8 mi)
- Park Forest, IL (8 mi)
Frequently asked questions
Is fiber internet available in Markham?
Yes, in part. About 47% of residential locations in Markham can get fiber, 99% can get cable, and about 99% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in Markham?
Xfinity reports service to about 99% of residential locations in Markham, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve Markham?
4 providers report service to at least 2% of locations in Markham, and 4 cover at least half. Satellite (HughesNet, Viasat, Starlink) is also available nearly everywhere.
What is the difference between fiber, cable and DSL?
Fiber offers the fastest and most consistent speeds, cable is widely available with high download speeds, and DSL runs over phone lines and is usually slower. See our guide for details.
What internet speed do I need in Markham?
Most households are well served by 100–300 Mbps. Heavy streaming, gaming or many connected devices may benefit from 500 Mbps or more.
Check your exact address
Coverage for a whole community cannot tell you what is available at your door. Enter your ZIP code, then confirm with each provider.
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