In New Castle there are 2 residential Fiber providers covering 94.77% of the city. The average home can get speeds up to 1,763 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 Fiber 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
Fiber 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 fiber internet available?
Fiber Internet Availability Key
Fiber is available in 94.77% of New Castle. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Earthlink. Call one of the companies with service in New Castle above to see who has service at your home.
How fast is fiber internet in New Castle?
The map below shows maximum fiber internet speeds by area in New Castle.
Fiber Internet Speed Key
The average New Castle home can get up to 1,763 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 2,048 Mbps, which 70.41% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 24.36% of homes can only purchase plans up to 940 Mbps. See the internet provider details below for info about their speed and coverage in New Castle.
Fiber internet speeds tend to be faster in the west parts of New Castle, and slower in the northeast areas of the city.
Is fiber 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, cable competes most often with fiber 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.
Fiber 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.
EarthLink Fiber in New Castle, DE
EarthLink fiber coverage
About 94.77%, or 48,944 people, have EarthLink fiber internet available to them in the city. The company covers the entire New Castle area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of New Castle.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in New Castle. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are 2 different maximum speeds throughout New Castle. The fastest plan anyone in New Castle can order from EarthLink goes up to 2,048 Mbps, the slowest package only goes up to 940 Mbps, and the city-wide average maximum speed for New Castle customers is up to 1,763 Mbps.
Show all download speeds
- 74.3% up to 2,048.0 Mbps
- 25.7% up to 940.0 Mbps
EarthLink fiber upload speeds
In New Castle download speeds tend to be faster than than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is one of the fastest where upload speeds are concerned, and one of the fastest compared to other New Castle fiber providers. EarthLink 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 2,048 Mbps. Some customers have slower plan choices, which only go up to 880 Mbps. On average, EarthLink customers can get speeds up to 1,748 Mbps.
Show all upload speeds
- 74.3% up to 2,048.0 Mbps
- 25.7% up to 880.0 Mbps
Verizon Fiber in New Castle, DE
Verizon fiber coverage
About 94.77%, or 48,944 people, have Verizon fiber internet available to them in the city. The company covers the entire New Castle area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in most of New Castle.
Verizon fiber download speeds
Verizon is above average when comparing download speeds to all other internet providers in New Castle. Versus other fiber providers in the area, Verizon fiber is one of the fastest. There are 2 different maximum speeds throughout New Castle. The fastest plan anyone in New Castle can order from Verizon goes up to 2,048 Mbps, the slowest package only goes up to 940 Mbps, and the city-wide average maximum speed for New Castle customers is up to 1,763 Mbps.
Show all download speeds
- 74.3% up to 2,048.0 Mbps
- 25.7% up to 940.0 Mbps
Verizon fiber upload speeds
In New Castle download speeds tend to be faster than than upload speeds for Verizon fiber. Compared to other ISPs, Verizon is one of the fastest where upload speeds are concerned, and one of the fastest compared to other New Castle fiber providers. Verizon 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 2,048 Mbps. Some customers have slower plan choices, which only go up to 880 Mbps. On average, Verizon customers can get speeds up to 1,748 Mbps.
Show all upload speeds
- 74.3% up to 2,048.0 Mbps
- 25.7% up to 880.0 Mbps
New Castle Fiber 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 fiber internet in New Castle compare to the rest of Delaware?
Fiber internet speeds in New Castle are much faster versus the average speeds in Delaware: 0.00 Mbps in Delaware versus 1,763 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Delaware is 0.00% versus 94.77% in New Castle.
What zip codes have fiber internet?
Fiber 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 fiber 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 fiber coverage, faster speeds
- Newport, DE: more fiber coverage, slower speeds
- Pennsville, NJ: less fiber coverage, slower speeds
- Elsmere, DE: less fiber coverage, slower speeds
- Brookside, DE: more fiber coverage, slower speeds
- Mahoneyville, NJ: more fiber coverage, slower speeds
- Newark, DE: less fiber coverage, slower speeds
- Delaware City, DE: more fiber coverage, faster speeds
- Bear, DE: more fiber coverage, faster speeds
- Wilmington, DE: less fiber coverage, slower speeds
Cities with Similar Populations
- Spring Valley, NY: more fiber coverage, faster speeds
- Lakewood, OH: less fiber coverage, faster speeds
- Lincoln, CA: less fiber coverage, faster speeds
- Lombard, IL: less fiber coverage, faster speeds
- Morristown, TN: more fiber coverage, faster speeds
- Princeton, NJ: less fiber coverage, faster speeds
- Sevierville, TN: less fiber coverage, faster speeds
- Sherman Oaks, CA: less fiber coverage, faster speeds
- Southaven, MS: less fiber coverage, faster speeds
- Spanaway, WA: less fiber coverage, faster speeds