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DSDownloadSpeed
FCC Data · Updated April 2026
B

Johnston County Internet

Johnston County, North Carolina has a Broadband Grade of B with an average download speed of 1000 Mbps across 11 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.

76
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in Johnston County

A
0
B
11
C
0
D
0
F
0
Best

Fastest ZIP Codes in Johnston County

ZIPGradeDownloadProvidersFiber
27504B1000 Mbps10Yes
27520B1000 Mbps10Yes
27524B1000 Mbps10Yes
27527B1000 Mbps10Yes
27542B1000 Mbps10Yes
27555B1000 Mbps10Yes
27568B1000 Mbps10Yes
27569B1000 Mbps10Yes
27576B1000 Mbps10Yes
27577B1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in Johnston County

ZIPGradeDownloadProvidersFiber
27504B1000 Mbps10Yes
27520B1000 Mbps10Yes
27524B1000 Mbps10Yes
27527B1000 Mbps10Yes
27542B1000 Mbps10Yes
27555B1000 Mbps10Yes
27568B1000 Mbps10Yes
27569B1000 Mbps10Yes
27576B1000 Mbps10Yes
27577B1000 Mbps10Yes
FAQ

Frequently Asked Questions

What is the average internet speed in Johnston County, North Carolina?

Johnston County, North Carolina has an average maximum download speed of 1000 Mbps across 11 ZIP codes. The county received a Broadband Grade of B (76/100), 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 Johnston County?

Johnston 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 Johnston County?

100% of ZIP codes in Johnston County, North Carolina 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 Johnston County?

The best-connected ZIP code in Johnston County is 27504 with a Broadband Grade of B, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

See how your connection compares to Johnston County's 1000 Mbps average.