San Mateo, California Coverage Map

Cell Coverage In San Mateo

The coverage map displays native (non-roaming) coverage in San Mateo. Estimated outdoor signal strength is shown. Indoor coverage may vary significantly depending on building construction.

Coverage Statistics

San Mateo has 298 map hexes within its census-defined boundaries.

Note: Census-defined boundaries may not align with the commonly understood boundaries of San Mateo. 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.

Map Use

• Zoom in for the highest quality data
• Use the search bar to find addresses in San Mateo
• Select a hexagon to see information on signal strength

From The Settings Menu

• Switch to a San Mateo 5G coverage map
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Data Sources

Coverage data for San Mateo 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.