In New Castle there are 2 residential Cable providers covering 98.89% of the city. The average home can get speeds up to 1,911 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 New Castle, DE.
To see availability maps for all providers including fiber, cable, DSL, and more in New Castle, DE please click below.
New Castle, DE Availability Maps
Cable Internet Service Providers in New Castle
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 New Castle are not shown.
New Castle 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 New Castle is cable internet available?
Cable Internet Availability Key
Cable is available in 98.89% of New Castle. 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 New Castle above to see who has service at your home.
How fast is cable internet in New Castle?
The map below shows maximum cable internet speeds by area in New Castle.
Cable Internet Speed Key
The average New Castle home can get up to 1,911 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 87.89% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 11.00% 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 New Castle.
Cable internet speeds tend to be faster in the northeast parts of New Castle, and slower in the southwest areas of the city.
Is cable the fastest internet I can get in New Castle?
The fastest internet for you may vary based on where in New Castle you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 71.01% of New Castle homes.
- Cable is fastest for 28.53% 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 New Castle homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in New Castle, along with details on where in New Castle and at what speeds.
XFINITY from Comcast Cable in New Castle, DE
XFINITY cable coverage
About 98.89%, or 51,073 people, have XFINITY cable internet available to them in the city. The company covers the entire New Castle area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of New Castle.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in New Castle. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout New Castle. The fastest plan anyone in New Castle 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 New Castle customers is up to 1,911 Mbps.
Show all download speeds
- 88.9% up to 2,000.0 Mbps
- 11.1% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In New Castle 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 New Castle 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 New Castle 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 226 Mbps.
Show all upload speeds
- 88.9% up to 250.0 Mbps
- 11.1% up to 35.0 Mbps
Atlantic Broadband Cable in New Castle, DE
Atlantic Broadband cable coverage
About 1.57%, or 813 people, have Atlantic Broadband cable internet available to them in the city. The company covers the southwest New Castle area. Atlantic Broadband is a large internet service provider internet service providers in the US, with internet service available in a very small piece of New Castle.
Atlantic Broadband cable download speeds
Atlantic Broadband is above average when comparing download speeds to all other internet providers in New Castle. Versus other cable providers in the area, Atlantic Broadband cable is the slowest. There are no different maximum speeds throughout New Castle. The fastest plan anyone in New Castle can order from Atlantic Broadband goes up to 1,000 Mbps, and all New Castle customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Atlantic Broadband cable upload speeds
In New Castle download speeds tend to be faster than than upload speeds for Atlantic Broadband cable. Compared to other ISPs, Atlantic Broadband is below average where upload speeds are concerned, and the slowest compared to other New Castle cable providers. Atlantic Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in New Castle is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
New Castle Cable by Area
This information is most helpful to those looking for homes or considering moving to New Castle or any of the areas nearby.
How does cable internet in New Castle compare to the rest of Delaware?
Cable internet speeds in New Castle are much faster versus the average speeds in Delaware: 0.00 Mbps in Delaware versus 1,911 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in Delaware is 0.00% versus 98.89% in New Castle.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around New Castle 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
- Wilmington Manor, DE: more cable coverage, faster speeds
- Newport, DE: more cable coverage, faster speeds
- Pennsville, NJ: more cable coverage, slower speeds
- Elsmere, DE: more cable coverage, faster speeds
- Deepwater, NJ: more cable coverage, faster speeds
- Brookside, DE: more cable coverage, slower speeds
- Mahoneyville, NJ: more cable coverage, faster speeds
- Newark, DE: less cable coverage, slower speeds
- Delaware City, DE: less cable coverage, slower speeds
- Bear, DE: more cable coverage, slower speeds
Cities with Similar Populations
- Spring Valley, NY: more cable coverage, slower speeds
- Lakewood, OH: more cable coverage, faster speeds
- Lincoln, CA: less cable coverage, slower speeds
- Lombard, IL: more cable coverage, faster speeds
- Morristown, TN: less cable coverage, slower speeds
- Princeton, NJ: less cable coverage, slower speeds
- Sevierville, TN: less cable coverage, slower speeds
- Sherman Oaks, CA: more cable coverage, slower speeds
- Southaven, MS: more cable coverage, slower speeds
- Spanaway, WA: less cable coverage, slower speeds