In 62521 there are 2 residential Cable providers covering 98.07% of the zip. The average home can get speeds up to 1,839 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 Cable internet providers in 62521, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in 62521, IL please click below.
Cable Internet Service Providers in 62521
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 62521 are not shown.
62521 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 62521 is cable internet available?
Cable Internet Availability Key
Cable is available in 98.07% of 62521. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is XFINITY. Call one of the companies with service in 62521 above to see who has service at your home.
How fast is cable internet in 62521?
The map below shows maximum cable internet speeds by area in 62521.
Cable Internet Speed Key
The average 62521 home can get up to 1,839 Mbps on their cable internet plan. The fastest cable download speed in the zip is 2,000 Mbps, which 78.78% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.59% 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 62521.
Cable internet speeds tend to be faster in the northwest parts of 62521, and slower in the northeast areas of the zip.
Is cable the fastest internet I can get in 62521?
The fastest internet for you may vary based on where in 62521 you live. In general, fiber competes most often with cable in the zip.
- Fiber is the fastest internet type for 10.03% of 62521 homes.
- Cable is fastest for 88.04% of the zip.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.52%.
- Satellite internet may be the only option for less than 1% of 62521 homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in 62521, along with details on where in 62521 and at what speeds.
XFINITY from Comcast Cable in 62521, IL
XFINITY cable coverage
About 96.48%, or 32,729 people, have XFINITY cable internet available to them in the zip. The company covers the entire 62521 area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of 62521.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in 62521. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout 62521. The fastest plan anyone in 62521 can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the zip-wide average maximum speed for 62521 customers is up to 1,853 Mbps.
Show all download speeds
- 81.7% up to 2,000.0 Mbps
- 18.3% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In 62521 download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the fastest compared to other 62521 cable providers. XFINITY offers 2 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 62521 is up to 250 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 211 Mbps.
Show all upload speeds
- 81.7% up to 250.0 Mbps
- 18.3% up to 35.0 Mbps
Sparklight Cable in 62521, IL
Sparklight cable coverage
About 1.68%, or 569 people, have Sparklight cable internet available to them in the zip. The company covers the northeast 62521 area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 62521.
Sparklight cable download speeds
Sparklight is above average when comparing download speeds to all other internet providers in 62521. Versus other cable providers in the area, Sparklight cable is the slowest. There are no different maximum speeds throughout 62521. The fastest plan anyone in 62521 can order from Sparklight goes up to 1,000 Mbps, and all 62521 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight cable upload speeds
In 62521 download speeds tend to be faster than than upload speeds for Sparklight cable. Compared to other ISPs, Sparklight is below average where upload speeds are concerned, and the slowest compared to other 62521 cable providers. Sparklight offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 62521 is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
62521 Cable by Area
This information is most helpful to those looking for homes or considering moving to 62521 or any of the areas nearby.
How does cable internet in 62521 compare to the rest of Illinois?
Cable internet speeds in 62521 are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 1,839 Mbps in the zip. The state has similar cable availability compared to the zip. Average cable coverage in Illinois is 0.00% versus 98.07% in 62521.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around 62521 are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable internet look like in other zip codes?
Below are zip codes nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Zip Codes
- 62523, IL: more cable coverage, slower speeds
- 62522, IL: less cable coverage, slower speeds
- 62549, IL: more cable coverage, faster speeds
- 62526, IL: more cable coverage, faster speeds
- 62532, IL: less cable coverage, faster speeds
- 62535, IL: more cable coverage, faster speeds
- 62554, IL: less cable coverage, slower speeds
- 61925, IL: less cable coverage, slower speeds
- 62544, IL: less cable coverage, slower speeds
- 62537, IL: less cable coverage, slower speeds
Zip Codes with Similar Populations
- 78210, TX: more cable coverage, slower speeds
- 60007, IL: more cable coverage, slower speeds
- 60046, IL: more cable coverage, faster speeds
- 60076, IL: more cable coverage, faster speeds
- 60098, IL: less cable coverage, faster speeds
- 60139, IL: more cable coverage, slower speeds
- 60169, IL: more cable coverage, slower speeds
- 60202, IL: more cable coverage, faster speeds
- 60653, IL: more cable coverage, slower speeds
- 60901, IL: less cable coverage, slower speeds