The coverage map displays native (non-roaming) coverage in San Jose. Estimated outdoor signal strength is shown. Indoor coverage may vary significantly depending on building construction.
San Jose has 4,227 map hexes within its census-defined boundaries.
| Network | 4G Coverage | 5G Coverage |
|---|---|---|
| AT&T | 98% | 96% |
| T-Mobile | 92% | 90% |
| Verizon | 97% | 95% |
Note: Census-defined boundaries may not align with the commonly understood boundaries of San Jose. Additionally, network operators sometimes make different modeling decisions (e.g. whether to report coverage over bodies of water) that can lead to spurious differences in coverage percentages.
Coverage data for San Jose comes from the FCC's Broadband Data Collection program and is supplemented with crowdsourced measurements. The current FCC data comes from the November 2025 release and represents coverage as of June 2025. New FCC data comes out about every six months.