Nantucket, MA Internet Speeds — Measured 2024
Real speed tests run in Nantucket County, Massachusetts during 2024 recorded a median download of 147.1 Mbps, upload of 23.2 Mbps and latency of 14.9 ms, across 1,534 measurements. That is 1.7× the US median and places it #13 of 2,425 US counties.
What these numbers mean here
The median is the typical connection, not the best one available. Half the tests in Nantucket came in below 147.1 Mbps and half above. The slower quarter of connections measured under 74.7 Mbps, while the faster quarter exceeded 252.8 Mbps — a spread that usually reflects a mix of fibre, cable and older DSL lines in the same area rather than one uniform service level.
At 147.1 Mbps down and 23.2 Mbps up, a typical household here can comfortably run several 4K streams alongside video calls. Latency of 14.9 ms is excellent for gaming and real-time calls.
The spread of connections in Nantucket
Measured download speed, 2024
How Massachusetts has changed since 2020
Median download by year, Massachusetts
State-wide measured median, Mbps
How the big providers actually perform
Median measured download speed by provider across the United States. SignalScout does not yet map which of these serve Nantucket specifically — see how to check availability — but the ranking shows what customers of each really get.
Massachusetts counties ranked
| # | County | Down | Up | Latency |
|---|---|---|---|---|
| 1 | Nantucket | 147.1 | 23.2 | 14.9 |
| 2 | Dukes | 138.1 | 23.4 | 12.5 |
| 3 | Essex | 116.8 | 23.0 | 12.9 |
| 4 | Barnstable | 114.1 | 21.9 | 14.8 |
| 5 | Plymouth | 112.5 | 23.5 | 12.9 |
| 6 | Bristol | 112.4 | 21.5 | 13.1 |
| 7 | Berkshire | 110.5 | 11.3 | 20.4 |
| 8 | Norfolk | 109.0 | 23.2 | 12.3 |
| 9 | Hampden | 108.9 | 19.5 | 15.3 |
| 10 | Worcester | 103.6 | 11.9 | 19.0 |
| 11 | Middlesex | 102.9 | 23.7 | 12.0 |
| 12 | Hampshire | 98.0 | 16.2 | 14.9 |
See all 14 counties in Massachusetts →
Check a specific address in Nantucket
County figures describe the area. To look up a specific street address and compare it with somewhere else you are considering, use SignalScout directly.
Common questions
What is the average internet speed in Nantucket, MA?
Speed tests run in Nantucket during 2024 recorded a median download of 147.1 Mbps, a median upload of 23.2 Mbps and median latency of 14.9 ms, across 1,534 measurements collected by Measurement Lab.
Is internet in Nantucket faster or slower than the US average?
Faster. The median measured download here is 147.1 Mbps against a US median of 85.2 Mbps, which ranks Nantucket #13 out of 2,425 counties nationally.
Are these advertised speeds or real ones?
Real ones. These are aggregated results of speed tests run by actual people on their own connections, published in the public domain by Measurement Lab. They reflect the plans residents actually buy, which is typically well below the fastest plan a provider sells.
Which internet providers serve Nantucket?
SignalScout does not yet map provider availability by address — that data comes from FCC filings that require a registered account for bulk access. The page shows how major national providers perform, and the FCC National Broadband Map lists filed availability by address.
Check a real address
See the measured download, upload and latency for any US address, plus a Connectivity Score ranked against every county in the country.