Xfinity is available in Mercer Island. Call 833-848-2575 • Sponsored Xfinity is available in Mercer Island. Check plans and availability or call 833-848-2575 • Sponsored
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Mercer Island has 12 internet options – View all▼
Mercer Island has multiple fiber providers, including Quantum Fiber and CenturyLink. Symmetric speeds of 2,000 Mbps are available in parts of the city.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Astound | 2,000 | 2,000 | 18% |
| Quantum Fiber | 2,000 | 1,000 | 81% |
| CenturyLink | 1,000 | 1,000 | 61% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Xfinity | 2,000 | 2,000 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| CenturyLink | 140 | 20 | 32% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Verizon | 1,000 | 75 | 96% |
| MINTernet | 100 | 20 | 100% |
| T-Mobile | 100 | 20 | 100% |
| AT&T | 100 | 20 | 99% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Starlink | 280 | 30 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| HughesNet | 50 | 5 | 100% |
| Viasat | 50 | 3 | 100% |
Broadband Map's availability estimates are based on the census boundaries of Mercer Island. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Broadband Map's listings of internet providers in Mercer Island rely primarily on the November 2025 release from the FCC's Broadband Data Collection program (representing Mercer Island ISPs' availability as of June 2025).