Compare cell coverage in San Mateo County, CA

See the best cell service provider in San Mateo County with our network coverage comparison of AT&T, Verizon, and T-Mobile. Use the search box to see cell coverage down to a street address.

FCC data as of June 30, 2022, updated November 18, 2022

AT&T has 32% of San Mateo County covered by 5G service and 44% covered by 4G LTE service.

32%

covered by 5G

44%

covered by 4G LTE

Amount of San Mateo County covered:: 43.5%
Excellent reception: 5.0%
Good reception: 10.3%
Average reception: 14.7%
Fair reception: 12.7%
Poor reception: 0.9%
No Signal: 56.5%

Verizon has 33% of San Mateo County covered by 5G service and 51% covered by 4G LTE service.

33%

covered by 5G

51%

covered by 4G LTE

Amount of San Mateo County covered:: 50.8%
Excellent reception: 12.6%
Good reception: 16.4%
Average reception: 16.2%
Fair reception: 5.5%
Poor reception: 0.1%
No Signal: 49.2%

T-Mobile has 21% of San Mateo County covered by 5G service and 35% covered by 4G LTE service.

21%

covered by 5G

35%

covered by 4G LTE

Amount of San Mateo County covered:: 35%
Excellent reception: 7.1%
Good reception: 13.9%
Average reception: 13.6%
Fair reception: 0.3%
No Signal: 65.0%

Coverage data: FCC National Broadband Map

Coverage over time

FCC data as of	AT&T 4G / 5G	Verizon 4G / 5G	T-Mobile 4G / 5G
June 30, 2022	44% / 32%	51% / 33%	35% / 21%

Cities in San Mateo County

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