SAN DIEGO · CA · FCC DATA

Best cell phone coverage in San Diego San Diego, California

Outdoors the carriers report 85.1% (AT&T) to 99.4% (Verizon) of San Diego, CA, but 12.4% of San Diego, CA's area is water, which carriers file differently, so no carrier shows more of the land covered.

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

RESULT · SAN DIEGO, CA

Coverage in San Diego, CA

Population 1,404,452 (Census 2024 estimate)

What stands out in San Diego

  • Verizon reports 90.2% of San Diego in a moving car, against 33.6% of California as a whole.
  • Beyond the city limits it thins: across San Diego County, Verizon reports 46.5% in a moving car, against 90.2% in San Diego.
  • 5G at 35/3 Mbps covers 91.6% of San Diego, against 47.7% of California.
  • T-Mobile loses the most of San Diego in a moving car: 85.5% outdoors, 69.6% in a car.
≈ NO CLEAR LEADER ON LAND
All three carriers
85.1–99.4%

AT&T vs T-Mobile vs Verizon in San Diego

=
Verizon
Outdoor
99.4%
In car
90.2%
=
T-Mobile
Outdoor
85.5%
In car
69.6%
=
AT&T
Outdoor
85.1%
In car
79.4%

4G and 5G across all carriers in San Diego

4G LTE
99.5%
5G 7/1
97.2%
5G 35/3
91.6%

Check your street on each carrier's map

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

Around San Diego, in San Diego County

The towns nearby where one carrier reports the least outdoors: Borrego Springs (T-Mobile 1.5%), Descanso (T-Mobile 58.2%), Jacumba (AT&T 68.4%), Pine Valley (AT&T 78.7%).

Questions about coverage in San Diego

Q1

How does San Diego compare with the rest of California?

Outdoors Verizon 99.4% (state 64.3%), T-Mobile 85.5% (state 51.4%), AT&T 85.1% (state 57.3%); in a moving car Verizon 90.2% (state 33.6%), AT&T 79.4% (state 36.2%), T-Mobile 69.6% (state 26.8%).

ZIP codes mostly inside San Diego

92014, 92037, 92092, 92093, 92101, 92102, 92103, 92104, 92105, 92106, 92107, 92108, 92109, 92110, 92111, 92113, 92114, 92115, 92116, 92117, 92119, 92120, 92121, 92122, 92123, 92124, 92126, 92127, 92128, 92129, 92130, 92131, 92132, 92134, 92136, 92139, 92140, 92145, 92147, 92154 and 3 more.

See the statewide California comparison, or coverage in Long Beach, Anaheim, Chula Vista, Fontana, Corona, Sunnyvale, Pomona, Visalia, Fullerton, Simi Valley, Carlsbad, Downey.

Cities with figures closest to San Diego's: Mobile, AL, Torrance, CA, Tacoma, WA, San Jose, CA, Charleston, SC.