Compare cell coverage in Boulder County, CO

See the best cell service provider in Boulder 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 74% of Boulder County covered by 5G service and 83% covered by 4G LTE service.

74%

covered by 5G

83%

covered by 4G LTE

Amount of Boulder County covered:: 83.4%
Excellent reception: 17.0%
Good reception: 26.4%
Average reception: 23.1%
Fair reception: 15.3%
Poor reception: 1.6%
No Signal: 16.6%

Verizon has 45% of Boulder County covered by 5G service and 79% covered by 4G LTE service.

45%

covered by 5G

79%

covered by 4G LTE

Amount of Boulder County covered:: 79.2%
Excellent reception: 27.8%
Good reception: 21.4%
Average reception: 16.7%
Fair reception: 13.1%
Poor reception: 0.3%
No Signal: 20.8%

T-Mobile has 52% of Boulder County covered by 5G service and 58% covered by 4G LTE service.

52%

covered by 5G

58%

covered by 4G LTE

Amount of Boulder County covered:: 58.4%
Excellent reception: 12.3%
Good reception: 28.0%
Average reception: 17.7%
Fair reception: 0.5%
No Signal: 41.6%

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	83% / 74%	79% / 45%	58% / 52%

Cities in Boulder County

View cell coverage by city: