ANTIOCH · CA · FCC DATA

Best cell phone coverage in Antioch Antioch, California

AT&T, T-Mobile and Verizon all report outdoor coverage of between 98.2% and 100% of Antioch, CA, so no carrier wins on outdoor coverage here.

Carrier-reported coverage from FCC carrier filings as of December 31, 2025, not measured signal. How these figures are read

RESULT · ANTIOCH, CA

Coverage in Antioch, CA

Population 118,453 (Census 2024 estimate)

What stands out in Antioch

  • T-Mobile reports 91.6% of Antioch in a moving car, against 26.8% of California as a whole.
  • Beyond the city limits it thins: across Contra Costa County, T-Mobile reports 53.1% in a moving car, against 91.6% in Antioch.
  • 5G at 35/3 Mbps covers 98.6% of Antioch, against 47.7% of California.
  • Verizon loses the most of Antioch in a moving car: 100% outdoors, 85.7% in a car.
✓ ALL THREE WITHIN 1.8 POINTS
All three carriers
98.2–100%

AT&T vs T-Mobile vs Verizon in Antioch

=
Verizon
Outdoor
100%
In car
85.7%
=
T-Mobile
Outdoor
99.6%
In car
91.6%
=
AT&T
Outdoor
98.2%
In car
85.2%

4G and 5G across all carriers in Antioch

4G LTE
100%
5G 7/1
99.6%
5G 35/3
98.6%

Check your street on each carrier's map

Verizon coverage map → T-Mobile coverage map → AT&T coverage map →

Around Antioch, in Contra Costa County

The towns nearby where one carrier reports the least outdoors: Port Costa (T-Mobile 66.7%), Rodeo (T-Mobile 84.4%), Diablo (T-Mobile 90.9%), Moraga (T-Mobile 92.8%).

Questions about coverage in Antioch

Q1

How does Antioch compare with the rest of California?

Outdoors Verizon 100% (state 64.3%), T-Mobile 99.6% (state 51.4%), AT&T 98.2% (state 57.3%); in a moving car T-Mobile 91.6% (state 26.8%), Verizon 85.7% (state 33.6%), AT&T 85.2% (state 36.2%).

ZIP codes mostly inside Antioch

94509, 94531.

See the statewide California comparison, or coverage in San Diego, Oceanside, Roseville, Salinas, Sunnyvale, Pasadena, Clovis, Vallejo, Fairfield, Berkeley, Downey, Costa Mesa.

Cities with figures closest to Antioch's: Palmdale, CA, Glendale, CA, Peoria, IL, Bellevue, WA, Escondido, CA.