Internet providers in New Castle, Delaware 19720
ZIP code 19720 is in New Castle, New Castle County, Delaware. Compare the major providers below, then check availability for your address.
Internet in New Castle 19720: local snapshot
About 90% of the 23,102 households in 19720 have a broadband subscription, 1 points below the Delaware average of 91%. That ranks 19720#38 of 62 ZIP codes in Delaware for broadband adoption.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023). These figures describe the area, not the providers available at your address.
Compare internet providers in New Castle, Delaware
Share of residential locations in New Castle where each provider reports service, from the FCC National Broadband Map (data as of December 31, 2025). Availability depends on your exact address.
| # | Provider | Technology (varies by address) | Locations covered | |
|---|---|---|---|---|
| 1 | Xfinity | Cable | 99%+ | |
| 2 | Verizon | Fiber, Fixed wireless | 90% | Check availability |
| 3 | T-Mobile Home Internet | Fixed wireless | 79% | |
| 4 | AT&T | Fiber, DSL, Fixed wireless | 75% | Check availability |
Satellite internet
| 1 | HughesNet | Satellite | 99%+ | |
| 2 | Starlink | Satellite | 99%+ | |
| 3 | Viasat | Satellite | 99%+ |
Satellite service is available at nearly every address but typically has higher latency than wired options.
Provider-reported coverage does not guarantee service or speeds at a specific address. Some "Check availability" links are affiliate links; we may earn a commission at no cost to you. How we make money.
What technologies are available in New Castle?
Fiber is widely available: about 88% of locations in New Castle can get it. Gigabit-class service (1,000 Mbps down) is reported for about 99%+ of locations. Fixed wireless home internet is reported for about 90% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in New Castle that providers report they can serve. City-level figures, not your address.
What to know about internet in New Castle 19720
Xfinity reports service to the most residential locations in New Castle, about 100%. 4 providers report coverage of at least half of locations (Xfinity, Verizon, T-Mobile Home Internet, and AT&T), so the market looks competitive. T-Mobile Home Internet offers fixed wireless home internet, an option if you prefer no cable or fiber installation.
The median age of residents is 39.
Frequently asked questions
Is fiber internet available in New Castle?
Yes, in part. About 88% of residential locations in New Castle can get fiber, 100% can get cable, and about 100% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in New Castle?
Xfinity reports service to about 100% of residential locations in New Castle, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve New Castle?
4 providers report service to at least 2% of locations in New Castle, and 4 cover at least half. Satellite (HughesNet, Starlink, Viasat) is also available nearly everywhere.
What is the difference between fiber, cable and DSL?
Fiber offers the fastest and most consistent speeds, cable is widely available with high download speeds, and DSL runs over phone lines and is usually slower. See our guide for details.
What internet speed do I need in New Castle 19720?
Most households are well served by 100–300 Mbps. Heavy streaming, gaming or many connected devices may benefit from 500 Mbps or more.
Internet providers near New Castle
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