Carrierlytics City Coverage Guide

Richmond, CA Cell Phone Coverage Map & Network Rankings (2026)

Don't overpay for a network that struggles where you actually use your phone.

Using FCC mobile coverage data across Richmond, CA ZIP codes, Carrierlytics compares the top-performing networks and the cheapest plans that use them.



Cell phone coverage map for Richmond, CA

Zoom in for local detail. Tap or click a colored area to see coverage and signal details. On mobile, use two fingers to move the map.

Coverage Key
Less covered More covered
Darker areas mean the carrier covers more of that location.

Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Carrierlytics.

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Cell phone coverage rankings by network in Richmond, CA

#1

Verizon

Coverage Score 92.6
In Richmond, CA
Overall
99.6%
4G LTE
99.6% avg. -81 dBm 4G LTE signal where 4G LTE coverage exists: avg. -81 dBm
5G
89.8% avg. -86 dBm 5G signal where 5G coverage exists: avg. -86 dBm
Fast 5G
78.5% avg. -84 dBm Fast 5G signal where Fast 5G coverage exists: avg. -84 dBm
Contra Costa County, CA covered 97.7%
#2

T-Mobile

Coverage Score 91.4
In Richmond, CA
Overall
93.9%
4G LTE
93.5% avg. -86 dBm 4G LTE signal where 4G LTE coverage exists: avg. -86 dBm
5G
88.7% avg. -83 dBm 5G signal where 5G coverage exists: avg. -83 dBm
Fast 5G
77.8% avg. -81 dBm Fast 5G signal where Fast 5G coverage exists: avg. -81 dBm
Contra Costa County, CA covered 87.8%
#3

AT&T

Coverage Score 76.0
In Richmond, CA
Overall
94.9%
4G LTE
94.6% avg. -99 dBm 4G LTE signal where 4G LTE coverage exists: avg. -99 dBm
5G
90.1% avg. -104 dBm 5G signal where 5G coverage exists: avg. -104 dBm
Fast 5G
50.8% avg. -98 dBm Fast 5G signal where Fast 5G coverage exists: avg. -98 dBm
Contra Costa County, CA covered 92.0%

County coverage is shown for surrounding-area context and uses land-area only coverage.

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Best phone plans for Richmond, CA

Best phone plans on Verizon's network for Richmond, CA

92.6 Verizon coverage score Ranked #1 in Richmond, CA
Best unlimited data plan Best hotspot plan Best family plan
100 Value Score

Total Wireless MAX 5G BYO

Elite Value

Price
$25/mo
Data
Unlimited
Hotspot
Unlimited
View plan
See all plans on Verizon Compare all phone plans

Coverage by ZIP code in Richmond, CA

ZIP code areas can extend beyond city limits, so this table is best used for local comparison around the city.

ZIP Code AT&T T-Mobile Verizon
94530 95.0% 94.1% 89.1% 44.6% 90.1% 90.1% 90.1% 88.1% 99.0% 99.0% 86.1% 85.1%
94801 92.5% 92.5% 89.9% 49.1% 94.4% 93.6% 91.4% 79.8% 100.0% 100.0% 97.8% 88.8%
94803 97.4% 97.0% 88.5% 50.2% 92.8% 92.5% 78.0% 62.3% 99.3% 99.3% 74.1% 58.7%
94804 98.1% 98.1% 96.8% 59.4% 98.1% 98.1% 98.1% 95.5% 100.0% 100.0% 100.0% 86.5%
94805 97.7% 97.7% 86.4% 56.8% 95.5% 95.5% 95.5% 90.9% 100.0% 100.0% 88.6% 84.1%
94806 100.0% 99.5% 100.0% 70.4% 100.0% 100.0% 100.0% 94.6% 100.0% 100.0% 97.8% 87.6%

About The Coverage Data

Coverage and signal estimates are derived by Carrierlytics from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of Richmond, CA where that carrier has coverage.

If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.