HereFacts

Compare cell coverage in Contra Costa County, CA

California > Contra Costa County

See the best cell service provider in Contra Costa 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.

AT&T

Good coverage

 
 
 
 
 

AT&T has 73% of Contra Costa County covered by 5G service and 82% covered by 4G LTE service.

5G
73%
covered by 5G
4G
82%
covered by 4G LTE
 
 
 
 
 
 
. . .
 
 
 
 
 
 
Amount of Contra Costa County covered:
 
82.5%
 
 
 
 
 
Excellent reception
 
7.2%
 
 
 
 
 
Good reception
 
20.3%
 
 
 
 
 
Average reception
 
34.7%
 
 
 
 
 
Fair reception
 
19.4%
 
 
 
 
 
Poor reception
 
0.8%
 
 
 
 
 
No Signal
 
17.5%

Verizon

Good coverage

 
 
 
 
 

Verizon has 66% of Contra Costa County covered by 5G service and 85% covered by 4G LTE service.

5G
66%
covered by 5G
4G
85%
covered by 4G LTE
 
 
 
 
 
 
. . .
 
 
 
 
 
 
Amount of Contra Costa County covered:
 
85.3%
 
 
 
 
 
Excellent reception
 
30.7%
 
 
 
 
 
Good reception
 
33.2%
 
 
 
 
 
Average reception
 
16.6%
 
 
 
 
 
Fair reception
 
4.6%
 
 
 
 
 
Poor reception
 
0.1%
 
 
 
 
 
No Signal
 
14.7%

T-Mobile

Good coverage

 
 
 
 
 

T-Mobile has 53% of Contra Costa County covered by 5G service and 78% covered by 4G LTE service.

5G
53%
covered by 5G
4G
78%
covered by 4G LTE
 
 
 
 
 
 
. . .
 
 
 
 
 
 
Amount of Contra Costa County covered:
 
78.2%
 
 
 
 
 
Excellent reception
 
17.0%
 
 
 
 
 
Good reception
 
31.1%
 
 
 
 
 
Average reception
 
28.2%
 
 
 
 
 
Fair reception
 
1.9%
 
 
 
 
 
No Signal
 
21.8%
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Cities in Contra Costa County

View cell coverage by city:

Acalanes Ridge Alamo Alhambra Valley Antioch Bay Point Bethel Island Blackhawk Brentwood Byron Camino Tassajara Castle Hill Clayton Clyde Concord Contra Costa Centre Crockett Danville Diablo Discovery Bay East Richmond Heights El Cerrito Hercules Kensington Knightsen Lafayette Martinez Montalvin Manor Moraga Norris Canyon North Gate North Richmond Oakley Orinda Pacheco Pinole Pittsburg Pleasant Hill Port Costa Reliez Valley Richmond Rodeo Rollingwood San Miguel San Pablo San Ramon Saranap Shell Ridge Tara Hills Vine Hill Walnut Creek
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