In San Diego County, you’ll select from 3 mobile wireless carriers listed below. 97.3% of San Diego County’s land area is covered by some kind of wireless service, as are 100.00% of San Diego County’s 3,302,821 residents. 5G reception covers up to 97.96% of people while they are sitting at home. Note that we may have a financial relationship with some of the San Diego County providers below. This does not influence what data we show, and helps us provide high-quality, detailed information for free.
San Diego County, CA Top Cell Providers
Plans include 5G where available.
Coverage:
T-Mobile Network
Data Speeds:
Same as T-Mobile below
Plans start at $15/mo.
View plans
Mint Mobile provides very affordable plans using the same network as T-Mobile throughout the United States.
Plans include 5G where available.
Coverage:
Verizon Network
Data Speeds:
Same as Verizon below
Plans start at $30/mo.
View plans
Visible offers unlimited data, talk and text for $30/month powered by Verizon.
AT&T Wireless 5G available in San Diego County
Coverage:
99.92% of San Diego County
98.83% of the USA
Data Speeds:
5G: 96.19%
4G: 99.90%
3G or 2G: 99.91%
More about AT&T Wireless in San Diego County
AT&T Wireless Data Speeds and Coverage in San Diego County
AT&T Wireless covers 99.92% of homes in the county with mobile data. The fastest cellular data speed available is 5G. Coverage by homes and land mass (the % of acres with cell coverage versus the total acreage in San Diego County) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
96.19% |
44.05% |
4G |
99.90% |
91.19% |
2G or 3G |
99.91% |
94.31% |
5G is the fastest wireless internet and data speed for 96.19% of homes. 4G is the fastest cell coverage for 3.71% of homes. 0.00% of homes can only receive 2G or 3G data. We rank AT&T Wireless as #1 out of 3 for a combination of coverage and speed among San Diego County mobile providers.
AT&T Wireless Voice Quality in San Diego County
5G voice quality can be very clear, and is available to 96.19% of homes. 4G voice is considered HD, and is available at 99.90% of San Diego County homes. 99.91% of homes can make calls using older 2G or 3G voice technology.
T-Mobile 5G available in San Diego County
Coverage:
99.91% of San Diego County
99.34% of the USA
Data Speeds:
5G: 84.60%
4G: 99.89%
3G or 2G: 99.58%
Plans start at $30/mo.
More about T-Mobile in San Diego County
T-Mobile Data Speeds and Coverage in San Diego County
T-Mobile covers 99.91% of homes in the county with mobile data. The fastest cellular data speed available is 5G. Coverage by homes and land mass (the % of acres with cell coverage versus the total acreage in San Diego County) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
84.60% |
53.11% |
4G |
99.89% |
89.24% |
2G or 3G |
99.58% |
66.24% |
5G is the fastest wireless internet and data speed for 84.60% of homes. 4G is the fastest cell coverage for 15.29% of homes. 0.00% of homes can only receive 2G or 3G data. We rank T-Mobile as #2 out of 3 for a combination of coverage and speed among San Diego County mobile providers.
T-Mobile Voice Quality in San Diego County
5G voice quality can be very clear, and is available to 84.60% of homes. 4G voice is considered HD, and is available at 99.89% of San Diego County homes. 99.58% of homes can make calls using older 2G or 3G voice technology.
Verizon Wireless 5G available in San Diego County
Coverage:
99.95% of San Diego County
98.82% of the USA
Data Speeds:
5G: 0.21%
4G: 99.94%
3G or 2G: 99.79%
Plans start at $35/mo.
More about Verizon Wireless in San Diego County
Verizon Wireless Data Speeds and Coverage in San Diego County
Verizon Wireless covers 99.95% of homes in the county with mobile data. The fastest cellular data speed available is 5G. Coverage by homes and land mass (the % of acres with cell coverage versus the total acreage in San Diego County) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
0.21% |
0.03% |
4G |
99.94% |
96.01% |
2G or 3G |
99.79% |
78.27% |
5G is the fastest wireless internet and data speed for 0.21% of homes. 4G is the fastest cell coverage for 99.73% of homes. 0.00% of homes can only receive 2G or 3G data. We rank Verizon Wireless as #3 out of 3 for a combination of coverage and speed among San Diego County mobile providers.
Verizon Wireless Voice Quality in San Diego County
5G voice quality can be very clear, and is available to 0.21% of homes. 4G voice is considered HD, and is available at 99.94% of San Diego County homes. 99.59% of homes can make calls using older 2G or 3G voice technology.
Coverage percentages on this page are based on the percent of San Diego County homes that would be covered by cellular service of any kind, unless specified as San Diego County land area.
Fastest Cell Service Down to the San Diego County Neighborhood
The map below shows where Verizon, AT&T, or T-Mobile are faster in San Diego County, CA. Areas with no clear winner are shown as ties.
Overall, San Diego County ranks #1936 out of 3658 counties for the fastest mobile internet network speeds in California.
Best San Diego County Cell Provider Key
The southern parts of the county feature better overall coverage for faster data. The opposite is true in the northeastern areas of San Diego County where mobile data speeds are generally slower.
Best Coverage & Data Speeds in San Diego County, CA: AT&T Wireless
Among the largest cell phone companies in the United States, AT&T Wireless has the best speed and coverage in San Diego County. AT&T Wireless has 5G that covers 96.19% of the county. Cell service of any type reaches 99.95% of San Diego County homes.
Cheap Options for Mobile Service in San Diego County, CA
If the price of a San Diego County mobile plan is a major concern for you, cheaper mobile plans are available as well. There are several options available in San Diego County including pre-paid, no-contract plans that start as low as $15 per line. Many of these providers such as Mint, Boost, and Cricket partner with the three major carriers to provide excellent coverage nationwide. With these discount options, the price of your San Diego County wireless plan will quickly rise if you add additional lines or features such as a hotspot or unlimited data.
Plans include 5G where available.
Coverage:
T-Mobile Network
Data Speeds:
Same as T-Mobile above
Plans start at $15/mo.
View plans
Mint Mobile provides very affordable plans using the same network as T-Mobile throughout the United States.
These providers all offer excellent coverage at a lower price compared to more well-known brands. Mint is generally regarded as the most affordable provider for unlimited data, with a high "throttle cap" of 35GB. Depending on where you live, you may prefer the AT&T network coverage offered by Cricket. Boost is a good option for international travelers.
San Diego County, CA Mobile Network Coverage Maps | Voice, 4G & 5G
San Diego County Fastest Speeds Key
Your mobile coverage in San Diego County may vary based on your provider and location. The map above shows the fastest mobile data speeds in and around the county. To see coverage for an individual provider, click the provider's availability maps above.
There are several types of mobile coverage to consider when evaluating a carrier’s geographic reliability. 5G is the fastest mobile data connection in San Diego County covering 97.96% of homes in the area while 4G covers 100.00% of the county. Overall, 100.00% of homes (3,302,866 people) and 97.3% of the land (3,942.1 square miles) are covered by some form of cell technology.
5G Coverage Map and Availability in San Diego County
San Diego County 5G Coverage Key
5G is currently the most advanced network available with speeds several times faster than 4G. 5G networks in San Diego County cover 97.96% of homes with 5G voice and data. In total 62.79% or 2,545.0 square miles of San Diego County are covered by 5G. The best 5G coverage in San Diego County comes from AT&T Wireless with 96.19% coverage.
4G Coverage Map and Availability in San Diego County
San Diego County 4G Coverage Key
4G/LTE networks have become one of the nation’s most common mobile coverage types for data, and in some locations, voice calls. In San Diego County, 100.00% of the area is covered by 4G data, and 100.00% is covered by 4G HD voice service. Verizon Wireless has the best 4G network in San Diego County with 99.94% coverage.
Selecting the Best Cell Provider in San Diego County for You
If you’re still struggling to choose a cell phone provider in the county, some of these facts may help you decide:
- Coverage to San Diego County houses is best with service from Verizon Wireless, with 99.95% of homes covered.
- The best coverage across all San Diego County land is provided by Verizon Wireless at 96.07% of land area covered.
- The current best 5G coverage comes from AT&T Wireless reporting 96.19% in San Diego County.
- The top estimated average speed in San Diego County, estimated at 69.78, Mbps is available through AT&T Wireless.
Mobile Service Near San Diego County
If you live near San Diego County but aren’t technically in the county, or you like to explore the region a lot, your coverage availability and speeds may vary.
Enter your zip code here to find more precise mobile numbers on your exact location. Here are our mobile and cell phone guides for several popular locations in and around San Diego County:
Counties close to San Diego County
- Riverside County, CA: better mobile coverage
- Orange County, CA: better mobile coverage
- Imperial County, CA: worse mobile coverage
- San Bernardino County, CA: better mobile coverage
- Los Angeles County, CA: better mobile coverage
- Ventura County, CA: worse mobile coverage
- Yuma County, AZ: worse mobile coverage
- La Paz County, AZ: worse mobile coverage
- Kern County, CA: better mobile coverage
- Santa Barbara County, CA: worse mobile coverage
Counties with similar populations to San Diego County
- Orange County, CA: better mobile coverage
- Miami-Dade County, FL: better mobile coverage
- Kings County, NY: better mobile coverage
- Dallas County, TX: better mobile coverage
- Maricopa County, AZ: worse mobile coverage
- Riverside County, CA: better mobile coverage
- Queens County, NY: better mobile coverage
- San Bernardino County, CA: better mobile coverage
- Clark County, NV: better mobile coverage
- King County, WA: better mobile coverage