Internet Speed Test for San Diego
Test in 30 seconds what your connection in San Diego really delivers. Compare against typical speeds in San Diego from Verizon, AT&T, Comcast, Spectrum, and T-Mobile.
Typical Internet speeds in San Diego
| Median Download | 300 Mbps |
| Median Upload | 130 Mbps |
| Median Ping | 18 ms |
| FTTH Coverage | 51% |
| Top ISP | Cox |
| Population | 1.4M |
These figures are based on aggregated anonymous measurements and public data from the national regulator. Your actual speed can vary depending on your plan, time of day, device and Wi-Fi conditions.
Slower than the San Diego median? Run the test:
→ Run the speed test now
If your speed is below the median
- Test over Ethernet, not Wi-Fi. Plug directly into the router.
- Pause other devices during the test — streaming, updates, cloud sync.
- Repeat the test at different times of day (peak: 7–11 PM).
- Document multiple measurements — and contact your ISP if the gap is consistent.