In 21111 there are 2 residential Cable providers covering 94.31% of the zip. The average home can get speeds up to 1,180 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 21111, MD.
To see availability maps for all providers including fiber, cable, DSL, and more in 21111, MD please click below.
Cable Internet Service Providers in 21111
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 21111 are not shown.
21111 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 21111 is cable internet available?
Cable Internet Availability Key
Cable is available in 94.31% of 21111. 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 21111 above to see who has service at your home.
How fast is cable internet in 21111?
The map below shows maximum cable internet speeds by area in 21111.
Cable Internet Speed Key
The average 21111 home can get up to 1,180 Mbps on their cable internet plan. The fastest cable download speed in the zip is 1,200 Mbps, which 84.76% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 9.55% 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 21111.
Cable internet speeds tend to be faster in the west parts of 21111, and slower in the northeast areas of the zip.
Is cable the fastest internet I can get in 21111?
The fastest internet for you may vary based on where in 21111 you live. In general, fiber competes most often with cable in the zip.
- Fiber is the fastest internet type for 32.24% of 21111 homes.
- Cable is fastest for 65.03% of the zip.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 2.55%.
- Satellite internet may be the only option for less than 1% of 21111 homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in 21111, along with details on where in 21111 and at what speeds.
XFINITY from Comcast Cable in 21111, MD
XFINITY cable coverage
About 84.76%, or 4,348 people, have XFINITY cable internet available to them in the zip. The company covers the west, south, north, northwest, southeast, central, southwest, and northeast 21111 area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in much of 21111.
XFINITY from Comcast cable download speeds
XFINITY is one of the fastest when comparing download speeds to all other internet providers in 21111. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout 21111. The fastest plan anyone in 21111 can order from XFINITY goes up to 1,200 Mbps, and all 21111 customers can get this speed.
Show all download speeds
- 100.0% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In 21111 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 21111 cable providers. XFINITY offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21111 is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Armstrong Cable in 21111, MD
Armstrong cable coverage
About 14.52%, or 745 people, have Armstrong cable internet available to them in the zip. The company covers the northeast 21111 area. Armstrong is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 21111.
Armstrong cable download speeds
Armstrong is above average when comparing download speeds to all other internet providers in 21111. Versus other cable providers in the area, Armstrong cable is the slowest. There are no different maximum speeds throughout 21111. The fastest plan anyone in 21111 can order from Armstrong goes up to 1,000 Mbps, and all 21111 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Armstrong cable upload speeds
In 21111 download speeds tend to be faster than than upload speeds for Armstrong cable. Compared to other ISPs, Armstrong is below average where upload speeds are concerned, and the slowest compared to other 21111 cable providers. Armstrong offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21111 is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
21111 Cable by Area
This information is most helpful to those looking for homes or considering moving to 21111 or any of the areas nearby.
How does cable internet in 21111 compare to the rest of Maryland?
Cable internet speeds in 21111 are much faster versus the average speeds in Maryland: 0.00 Mbps in Maryland versus 1,180 Mbps in the zip. The state has similar cable availability compared to the zip. Average cable coverage in Maryland is 0.00% versus 94.31% in 21111.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around 21111 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
- 21152, MD: more cable coverage, faster speeds
- 21131, MD: more cable coverage, faster speeds
- 21161, MD: less cable coverage, faster speeds
- 21120, MD: more cable coverage, faster speeds
- 21013, MD: more cable coverage, faster speeds
- 21030, MD: more cable coverage, faster speeds
- 21084, MD: more cable coverage, slower speeds
- 21031, MD: more cable coverage, faster speeds
- 21057, MD: more cable coverage, faster speeds
- 21047, MD: more cable coverage, faster speeds
Zip Codes with Similar Populations
- 51555, IA: less cable coverage, faster speeds
- 37307, TN: more cable coverage, faster speeds
- 37324, TN: less cable coverage, faster speeds
- 38468, TN: less cable coverage, slower speeds
- 38868, MS: less cable coverage, slower speeds
- 43845, OH: less cable coverage, slower speeds
- 45865, OH: less cable coverage, slower speeds
- 47031, IN: less cable coverage, faster speeds
- 48632, MI: less cable coverage, slower speeds
- 37150, TN: less cable coverage, faster speeds