In Belvidere there are 2 residential Cable providers covering 98.24% of the city. The average home can get speeds up to 1,673 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 Belvidere, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Belvidere, IL please click below.
Belvidere, IL Availability Maps
Cable Internet Service Providers in Belvidere
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 Belvidere are not shown.
Belvidere 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 Belvidere is cable internet available?
Cable Internet Availability Key
Cable is available in 98.24% of Belvidere. 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 Belvidere above to see who has service at your home.
How fast is cable internet in Belvidere?
The map below shows maximum cable internet speeds by area in Belvidere.
Cable Internet Speed Key
The average Belvidere home can get up to 1,673 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 58.95% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 3.49% 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 Belvidere.
Cable internet speeds tend to be faster in the east parts of Belvidere, and slower in the southeast areas of the city.
Is cable the fastest internet I can get in Belvidere?
The fastest internet for you may vary based on where in Belvidere you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 72.68% of Belvidere homes.
- Cable is fastest for 25.63% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.50%.
- Satellite internet may be the only option for less than 1% of Belvidere homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Belvidere, along with details on where in Belvidere and at what speeds.
XFINITY from Comcast Cable in Belvidere, IL
XFINITY cable coverage
About 94.75%, or 30,232 people, have XFINITY cable internet available to them in the city. The company covers the entire Belvidere area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of Belvidere.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in Belvidere. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Belvidere. The fastest plan anyone in Belvidere can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the city-wide average maximum speed for Belvidere customers is up to 1,698 Mbps.
Show all download speeds
- 62.2% up to 2,000.0 Mbps
- 37.8% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Belvidere 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 Belvidere cable providers. XFINITY 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 Belvidere 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 169 Mbps.
Show all upload speeds
- 62.2% up to 250.0 Mbps
- 37.8% up to 35.0 Mbps
Mediacom Cable in Belvidere, IL
Mediacom cable coverage
About 7.88%, or 2,514 people, have Mediacom cable internet available to them in the city. The company covers the northwest and west Belvidere area. Mediacom is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Belvidere.
Mediacom cable download speeds
Mediacom is above average when comparing download speeds to all other internet providers in Belvidere. Versus other cable providers in the area, Mediacom cable is the slowest. There are no different maximum speeds throughout Belvidere. The fastest plan anyone in Belvidere can order from Mediacom goes up to 1,000 Mbps, and all Belvidere customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mediacom cable upload speeds
In Belvidere download speeds tend to be faster than than upload speeds for Mediacom cable. Compared to other ISPs, Mediacom is below average where upload speeds are concerned, and the slowest compared to other Belvidere cable providers. Mediacom offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Belvidere is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Belvidere Cable by Area
This information is most helpful to those looking for homes or considering moving to Belvidere or any of the areas nearby.
How does cable internet in Belvidere compare to the rest of Illinois?
Cable internet speeds in Belvidere are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 1,673 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in Illinois is 0.00% versus 98.24% in Belvidere.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Belvidere 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 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
- Timberlane, IL: less cable coverage, faster speeds
- Garden Prairie, IL: less cable coverage, slower speeds
- Cherry Valley, IL: less cable coverage, slower speeds
- Poplar Grove, IL: less cable coverage, faster speeds
- Caledonia, IL: less cable coverage, faster speeds
- Loves Park, IL: more cable coverage, faster speeds
- Rockford, IL: less cable coverage, faster speeds
- Capron, IL: less cable coverage, slower speeds
- Kingston, IL: less cable coverage, slower speeds
- Machesney Park, IL: more cable coverage, faster speeds
Cities with Similar Populations
- Azle, TX: less cable coverage, slower speeds
- Chillum, MD: less cable coverage, faster speeds
- Baldwinsville, NY: more cable coverage, slower speeds
- Auburn, CA: less cable coverage, slower speeds
- Aguada, PR: less cable coverage, slower speeds
- Paradise Hills, NM: more cable coverage, slower speeds
- Oswego, NY: less cable coverage, slower speeds
- Orchard Park, NY: more cable coverage, slower speeds
- Oakton, VA: more cable coverage, faster speeds
- Ponchatoula, LA: less cable coverage, slower speeds