Kauai, HI Internet Speeds — Measured 2024
Real speed tests run in Kauai County, Hawaii during 2024 recorded a median download of 88.3 Mbps, upload of 10.9 Mbps and latency of 64.7 ms, across 4,861 measurements. That is 1.0× the US median and places it #1,070 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 Kauai came in below 88.3 Mbps and half above. The slower quarter of connections measured under 32.2 Mbps, while the faster quarter exceeded 202.9 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 88.3 Mbps down and 10.9 Mbps up, a typical household here can handle HD streaming and video calls, though simultaneous heavy use may compete for bandwidth. Latency of 64.7 ms is high enough that video calls and gaming may feel laggy.
The spread of connections in Kauai
Measured download speed, 2024
How Hawaii has changed since 2020
Median download by year, Hawaii
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 Kauai specifically — see how to check availability — but the ranking shows what customers of each really get.
Hawaii counties ranked
| # | County | Down | Up | Latency |
|---|---|---|---|---|
| 1 | Kauai | 88.3 | 10.9 | 64.7 |
| 2 | Maui | 85.0 | 10.8 | 64.2 |
| 3 | Hawaii | 80.6 | 10.9 | 65.4 |
| 4 | Honolulu | 71.1 | 11.0 | 63.1 |
See all 4 counties in Hawaii →
Check a specific address in Kauai
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 Kauai, HI?
Speed tests run in Kauai during 2024 recorded a median download of 88.3 Mbps, a median upload of 10.9 Mbps and median latency of 64.7 ms, across 4,861 measurements collected by Measurement Lab.
Is internet in Kauai faster or slower than the US average?
Faster. The median measured download here is 88.3 Mbps against a US median of 85.2 Mbps, which ranks Kauai #1,070 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 Kauai?
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.