In Winthrop Harbor there are 2 residential Cable providers covering 100.00% of the city. The average home can get speeds up to 1,796 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 Winthrop Harbor, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Winthrop Harbor, IL please click below.
Winthrop Harbor, IL Availability Maps
Cable Internet Service Providers in Winthrop Harbor
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 Winthrop Harbor are not shown.
Winthrop Harbor 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 Winthrop Harbor is cable internet available?

Cable Internet Availability Key
Cable is available in 100.00% of Winthrop Harbor. 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 Winthrop Harbor above to see who has service at your home.
How fast is cable internet in Winthrop Harbor?
The map below shows maximum cable internet speeds by area in Winthrop Harbor.

Cable Internet Speed Key
The average Winthrop Harbor home can get up to 1,796 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 74.55% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 25.45% of homes can only purchase plans up to 1,200 Mbps. See the internet provider details below for info about their speed and coverage in Winthrop Harbor.
Cable internet speeds tend to be faster in the south parts of Winthrop Harbor, and slower in the east areas of the city.
Is cable the fastest internet I can get in Winthrop Harbor?
The fastest internet for you may vary based on where in Winthrop Harbor you live. In general, satellite competes most often with cable in the city.
- Fiber is the fastest internet type for less than 1% of Winthrop Harbor homes.
- Cable is fastest for 100.00% 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 Winthrop Harbor homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Winthrop Harbor, along with details on where in Winthrop Harbor and at what speeds.
XFINITY from Comcast Cable in Winthrop Harbor, IL

XFINITY cable coverage
About 100.00%, or 7,421 people, have XFINITY cable internet available to them in the city. The company covers the entire Winthrop Harbor area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Winthrop Harbor.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in Winthrop Harbor. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Winthrop Harbor. The fastest plan anyone in Winthrop Harbor 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 Winthrop Harbor customers is up to 1,796 Mbps.
Show all download speeds
- 74.5% up to 2,000.0 Mbps
- 25.5% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Winthrop Harbor download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is the fastest where upload speeds are concerned, and the fastest compared to other Winthrop Harbor 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 Winthrop Harbor 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 195 Mbps.
Show all upload speeds
- 74.5% up to 250.0 Mbps
- 25.5% up to 35.0 Mbps
Spectrum Cable in Winthrop Harbor, IL

Spectrum cable coverage
About 1.32%, or 98 people, have Spectrum cable internet available to them in the city. The company covers the northeast Winthrop Harbor area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Winthrop Harbor.
Spectrum cable download speeds
Spectrum is above average when comparing download speeds to all other internet providers in Winthrop Harbor. Versus other cable providers in the area, Spectrum cable is the slowest. There are no different maximum speeds throughout Winthrop Harbor. The fastest plan anyone in Winthrop Harbor can order from Spectrum goes up to 1,000 Mbps, and all Winthrop Harbor customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In Winthrop Harbor download speeds tend to be faster than than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is average where upload speeds are concerned, and the slowest compared to other Winthrop Harbor cable providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Winthrop Harbor is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Winthrop Harbor Cable by Area
This information is most helpful to those looking for homes or considering moving to Winthrop Harbor or any of the areas nearby.
How does cable internet in Winthrop Harbor compare to the rest of Illinois?
Cable internet speeds in Winthrop Harbor are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 1,796 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in Illinois is 0.00% versus 100.00% in Winthrop Harbor.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Winthrop Harbor 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
- Zion, IL: less cable coverage, slower speeds
- Beach Park, IL: equal cable coverage, slower speeds
- Pleasant Prairie, WI: less cable coverage, slower speeds
- Wadsworth, IL: less cable coverage, slower speeds
- Kenosha, WI: less cable coverage, slower speeds
- Waukegan, IL: less cable coverage, faster speeds
- Old Mill Creek, IL: less cable coverage, faster speeds
- Park City, IL: less cable coverage, faster speeds
- Gurnee, IL: less cable coverage, faster speeds
- North Chicago, IL: less cable coverage, faster speeds
Cities with Similar Populations
- Montrose, VA: equal cable coverage, slower speeds
- Pemberton, NJ: less cable coverage, slower speeds
- Mountain View, HI: less cable coverage, slower speeds
- Moriarty, NM: less cable coverage, slower speeds
- Morgantown, PA: less cable coverage, faster speeds
- Morgantown, KY: less cable coverage, slower speeds
- Mora, MN: less cable coverage, slower speeds
- Moorestown, NJ: equal cable coverage, faster speeds
- Mooresboro, NC: less cable coverage, slower speeds
- Perham, MN: less cable coverage, slower speeds


