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DSDownloadSpeed
FCC Data · Updated April 2026
A

New Castle County Internet

New Castle County, Delaware has a Broadband Grade of A with an average download speed of 100 Mbps across 29 ZIP codes. 100% of the county has fiber internet access, and the area averages 10 providers per ZIP code. Internet access is above average for the U.S.

86
Score
100 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in New Castle County

A
29
B
0
C
0
D
0
F
0
Best

Fastest ZIP Codes in New Castle County

ZIPGradeDownloadProvidersFiber
19701A100 Mbps10Yes
19702A100 Mbps10Yes
19703A100 Mbps10Yes
19706A100 Mbps10Yes
19707A100 Mbps10Yes
19709A100 Mbps10Yes
19710A100 Mbps10Yes
19711A100 Mbps10Yes
19713A100 Mbps10Yes
19716A100 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in New Castle County

ZIPGradeDownloadProvidersFiber
19701A100 Mbps10Yes
19702A100 Mbps10Yes
19703A100 Mbps10Yes
19706A100 Mbps10Yes
19707A100 Mbps10Yes
19709A100 Mbps10Yes
19710A100 Mbps10Yes
19711A100 Mbps10Yes
19713A100 Mbps10Yes
19716A100 Mbps10Yes
FAQ

Frequently Asked Questions

What is the average internet speed in New Castle County, Delaware?

New Castle County, Delaware has an average maximum download speed of 100 Mbps across 29 ZIP codes. The county received a Broadband Grade of A (86/100), which factors in download speed, provider competition, fiber availability, and upload speed. This meets the FCC broadband standard of 100 Mbps download.

How many internet providers are in New Castle County?

New Castle County has an average of 10 internet providers per ZIP code. 100% of ZIP codes in the county have fiber internet access. Having 3 or more providers typically leads to better prices and service quality through competition.

Is there fiber internet in New Castle County?

100% of ZIP codes in New Castle County, Delaware have fiber internet available. Fiber provides the fastest and most reliable connections, typically 500 Mbps to 5 Gbps with symmetrical upload speeds. Fiber coverage in this county is above the national average.

What is the best ZIP code for internet in New Castle County?

The best-connected ZIP code in New Castle County is 19701 with a Broadband Grade of A, 100 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

See how your connection compares to New Castle County's 100 Mbps average.