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DSDownloadSpeed
FCC Data · Updated April 2026
B

Grafton County Internet

Grafton County, New Hampshire has a Broadband Grade of B with an average download speed of 1000 Mbps across 36 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.

65
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in Grafton County

A
0
B
36
C
0
D
0
F
0
Best

Fastest ZIP Codes in Grafton County

ZIPGradeDownloadProvidersFiber
03215B1000 Mbps10Yes
03217B1000 Mbps10Yes
03222B1000 Mbps10Yes
03223B1000 Mbps10Yes
03238B1000 Mbps10Yes
03240B1000 Mbps10Yes
03241B1000 Mbps10Yes
03245B1000 Mbps10Yes
03251B1000 Mbps10Yes
03262B1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in Grafton County

ZIPGradeDownloadProvidersFiber
03215B1000 Mbps10Yes
03217B1000 Mbps10Yes
03222B1000 Mbps10Yes
03223B1000 Mbps10Yes
03238B1000 Mbps10Yes
03240B1000 Mbps10Yes
03241B1000 Mbps10Yes
03245B1000 Mbps10Yes
03251B1000 Mbps10Yes
03262B1000 Mbps10Yes
FAQ

Frequently Asked Questions

What is the average internet speed in Grafton County, New Hampshire?

Grafton County, New Hampshire has an average maximum download speed of 1000 Mbps across 36 ZIP codes. The county received a Broadband Grade of B (65/100), 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 Grafton County?

Grafton 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 Grafton County?

100% of ZIP codes in Grafton County, New Hampshire 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 Grafton County?

The best-connected ZIP code in Grafton County is 03215 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 Grafton County's 1000 Mbps average.