San Jose, CA Cell Phone Coverage Map & Network Rankings (2026)

Don’t overpay for a network that struggles where you actually use your phone.

Using FCC mobile coverage data across San Jose, CA zip codes, this guide compares the top-performing networks and the cheapest plans that use them.

Coverage rankings for San Jose, CA

T-Mobile currently ranks first for coverage in this area, with a coverage score of 92.3. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.


RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile92.392.0%91.8%90.4%82.9% -84 dBm
2Verizon91.897.5%97.5%85.8%74.3% -90 dBm
3AT&T84.894.8%92.2%90.4%60.8% -103 dBm

Scores include coverage area, network type, and average signal strength.


Cell phone coverage map for San Jose, CA

Zoom in for local detail. Tap or click a colored area to see coverage and signal details. On mobile, use two fingers to move the map.

Coverage Key
Less covered More covered
Darker areas mean the carrier covers more of that location.

Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Compare Wireless Carriers.

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Cell phone coverage by network in San Jose, CA

#1

T-Mobile

Coverage Score 92.3
In San Jose, CA
Overall
92.0%
4G LTE
91.8%
5G
90.4%
Fast 5G
82.9%
Average Signal -84 dBm
Santa Clara County, CA covered 52.0%
#2

Verizon

Coverage Score 91.8
In San Jose, CA
Overall
97.5%
4G LTE
97.5%
5G
85.8%
Fast 5G
74.3%
Average Signal -90 dBm
Santa Clara County, CA covered 78.3%
#3

AT&T

Coverage Score 84.8
In San Jose, CA
Overall
94.8%
4G LTE
92.2%
5G
90.4%
Fast 5G
60.8%
Average Signal -103 dBm
Santa Clara County, CA covered 61.3%

County coverage is shown for surrounding-area context and uses land-area only coverage.

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Coverage by ZIP code in San Jose, CA

ZIP code areas can extend beyond city limits, so this table is best used for local comparison around the city.

ZIP CodeAT&TT-MobileVerizon
95002 83.4% 54.3% 78.0% 64.1% -110 dBm 98.7% 98.7% 98.7% 90.6% -90 dBm 100.0% 100.0% 100.0% 97.3% -89 dBm
95008 100.0% 99.3% 98.7% 67.8% -104 dBm 100.0% 100.0% 100.0% 98.7% -80 dBm 100.0% 100.0% 95.4% 75.0% -87 dBm
95013 100.0% 100.0% 100.0% 80.5% -95 dBm 100.0% 100.0% 100.0% 95.1% -82 dBm 100.0% 100.0% 95.1% 82.9% -83 dBm
95037 84.2% 84.0% 72.8% 37.4% -110 dBm 39.0% 38.5% 37.2% 30.5% -88 dBm 75.8% 74.4% 41.9% 25.4% -97 dBm
95050 100.0% 100.0% 100.0% 70.6% -98 dBm 100.0% 100.0% 100.0% 97.6% -81 dBm 100.0% 100.0% 99.2% 95.2% -82 dBm
95054 100.0% 100.0% 100.0% 87.6% -94 dBm 100.0% 100.0% 100.0% 100.0% -75 dBm 100.0% 100.0% 99.3% 91.5% -82 dBm
95070 68.5% 66.7% 52.4% 22.9% -107 dBm 62.6% 62.6% 55.0% 36.2% -92 dBm 99.5% 99.5% 78.2% 52.7% -96 dBm
95110 100.0% 100.0% 99.1% 66.4% -100 dBm 100.0% 100.0% 100.0% 100.0% -75 dBm 100.0% 100.0% 100.0% 100.0% -86 dBm
95111 100.0% 100.0% 100.0% 77.8% -100 dBm 100.0% 100.0% 99.3% 98.5% -79 dBm 100.0% 100.0% 84.4% 74.1% -90 dBm
95112 100.0% 99.4% 97.7% 77.9% -100 dBm 100.0% 100.0% 100.0% 98.3% -79 dBm 100.0% 100.0% 95.9% 84.3% -86 dBm
95113 100.0% 100.0% 100.0% 75.0% -93 dBm 100.0% 100.0% 100.0% 100.0% -68 dBm 100.0% 100.0% 100.0% 100.0% -94 dBm
95116 100.0% 100.0% 100.0% 74.4% -100 dBm 100.0% 100.0% 100.0% 100.0% -74 dBm 100.0% 100.0% 100.0% 97.6% -83 dBm
95117 100.0% 100.0% 100.0% 66.1% -100 dBm 100.0% 100.0% 100.0% 94.6% -82 dBm 100.0% 100.0% 100.0% 98.2% -95 dBm
95118 98.9% 98.9% 97.9% 61.7% -102 dBm 100.0% 100.0% 100.0% 96.8% -82 dBm 100.0% 100.0% 95.7% 75.5% -89 dBm
95119 93.2% 93.2% 89.3% 66.0% -102 dBm 100.0% 100.0% 100.0% 97.1% -84 dBm 100.0% 100.0% 92.2% 86.4% -85 dBm
95120 72.7% 70.9% 57.9% 22.0% -111 dBm 62.0% 61.7% 48.6% 31.8% -94 dBm 92.3% 92.1% 52.8% 33.8% -95 dBm
95121 99.0% 99.0% 98.1% 72.4% -101 dBm 100.0% 100.0% 100.0% 99.0% -79 dBm 100.0% 100.0% 99.0% 92.4% -90 dBm
95122 100.0% 100.0% 100.0% 72.7% -98 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm 100.0% 100.0% 100.0% 96.4% -86 dBm
95123 98.4% 98.4% 98.4% 75.7% -101 dBm 100.0% 100.0% 100.0% 98.9% -80 dBm 100.0% 100.0% 95.7% 84.3% -86 dBm
95124 99.4% 99.4% 97.5% 69.8% -100 dBm 100.0% 100.0% 99.4% 82.4% -87 dBm 100.0% 100.0% 98.1% 90.6% -81 dBm
95125 100.0% 100.0% 100.0% 75.0% -99 dBm 100.0% 100.0% 98.8% 86.9% -85 dBm 100.0% 100.0% 90.5% 71.4% -88 dBm
95126 100.0% 100.0% 100.0% 80.0% -98 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm 100.0% 100.0% 88.8% 62.5% -89 dBm
95127 57.1% 53.3% 45.8% 16.7% -105 dBm 72.5% 72.2% 70.7% 51.2% -90 dBm 98.0% 98.0% 69.3% 55.8% -95 dBm
95128 100.0% 100.0% 98.9% 73.6% -97 dBm 100.0% 100.0% 100.0% 100.0% -78 dBm 100.0% 100.0% 96.7% 84.6% -91 dBm
95129 99.1% 99.1% 99.1% 72.9% -97 dBm 100.0% 100.0% 100.0% 85.0% -87 dBm 100.0% 100.0% 100.0% 96.3% -89 dBm

About The Coverage Data

Coverage and signal estimates are derived by Compare Wireless Carriers from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of San Jose, CA where that carrier has coverage.

If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.