In San Mateo County, you’ll select from 3 mobile wireless carriers listed below. 96.8% of San Mateo County’s land area is covered by some kind of wireless service, as are 99.97% of San Mateo County’s 765,935 residents. 5G reception covers up to 98.07% of people while they are sitting at home. Note that we may have a financial relationship with some of the San Mateo County providers below. This does not influence what data we show, and helps us provide high-quality, detailed information for free.
San Mateo 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 Mateo County
Coverage:
99.92% of San Mateo County
98.83% of the USA
Data Speeds:
5G: 93.64%
4G: 99.77%
3G or 2G: 99.91%
More about AT&T Wireless in San Mateo County
AT&T Wireless Data Speeds and Coverage in San Mateo 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 Mateo County) is shown below.
Tech |
% Homes |
% Land |
---|---|---|
5G |
93.64% |
43.41% |
4G |
99.77% |
82.21% |
2G or 3G |
99.91% |
92.64% |
5G is the fastest wireless internet and data speed for 93.64% of homes. 4G is the fastest cell coverage for 6.13% 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 Mateo County mobile providers.
AT&T Wireless Voice Quality in San Mateo County
5G voice quality can be very clear, and is available to 93.64% of homes. 4G voice is considered HD, and is available at 99.77% of San Mateo County homes. 99.91% of homes can make calls using older 2G or 3G voice technology.
T-Mobile 5G available in San Mateo County
Coverage:
99.70% of San Mateo County
99.34% of the USA
Data Speeds:
5G: 83.47%
4G: 99.58%
3G or 2G: 99.35%
Plans start at $30/mo.
More about T-Mobile in San Mateo County
T-Mobile Data Speeds and Coverage in San Mateo County
T-Mobile covers 99.70% 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 Mateo County) is shown below.
Tech |
% Homes |
% Land |
---|---|---|
5G |
83.47% |
45.43% |
4G |
99.58% |
67.88% |
2G or 3G |
99.35% |
62.74% |
5G is the fastest wireless internet and data speed for 83.47% of homes. 4G is the fastest cell coverage for 16.11% 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 Mateo County mobile providers.
T-Mobile Voice Quality in San Mateo County
5G voice quality can be very clear, and is available to 83.47% of homes. 4G voice is considered HD, and is available at 99.58% of San Mateo County homes. 99.55% of homes can make calls using older 2G or 3G voice technology.
Coverage:
99.94% of San Mateo County
98.82% of the USA
Data Speeds:
4G: 99.93%
3G or 2G: 99.78%
Plans start at $35/mo.
More about Verizon Wireless in San Mateo County
Verizon Wireless Data Speeds and Coverage in San Mateo County
Verizon Wireless covers 99.94% of homes in the county with mobile data. The fastest cellular data speed available is 4G. Coverage by homes and land mass (the % of acres with cell coverage versus the total acreage in San Mateo County) is shown below.
Tech |
% Homes |
% Land |
---|---|---|
4G |
99.93% |
95.82% |
2G or 3G |
99.78% |
81.96% |
4G is the fastest cell coverage for 99.93% 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 Mateo County mobile providers.
Verizon Wireless Voice Quality in San Mateo County
4G voice is considered HD, and is available at 99.93% of San Mateo County homes. 99.78% of homes can make calls using older 2G or 3G voice technology.
Coverage percentages on this page are based on the percent of San Mateo County homes that would be covered by cellular service of any kind, unless specified as San Mateo County land area.
Fastest Cell Service Down to the San Mateo County Neighborhood
The map below shows where Verizon, AT&T, or T-Mobile are faster in San Mateo County, CA. Areas with no clear winner are shown as ties.
Overall, San Mateo County ranks #1927 out of 3658 counties for the fastest mobile internet network speeds in California.
Best San Mateo County Cell Provider Key
The eastern parts of the county feature better overall coverage for faster data. The opposite is true in the southern areas of San Mateo County where mobile data speeds are generally slower.
Best Coverage & Data Speeds in San Mateo 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 Mateo County. AT&T Wireless has 5G that covers 93.64% of the county. Cell service of any type reaches 99.94% of San Mateo County homes.
Cheap Options for Mobile Service in San Mateo County, CA
If the price of a San Mateo County mobile plan is a major concern for you, cheaper mobile plans are available as well. There are several options available in San Mateo 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 Mateo 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 Mateo County, CA Mobile Network Coverage Maps | Voice, 4G & 5G
San Mateo County Fastest Speeds Key
Your mobile coverage in San Mateo 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 Mateo County covering 98.07% of homes in the area while 4G covers 99.97% of the county. Overall, 99.97% of homes (765,922 people) and 96.8% of the land (430.2 square miles) are covered by some form of cell technology.
5G Coverage Map and Availability in San Mateo County
San Mateo County 5G Coverage Key
5G is currently the most advanced network available with speeds several times faster than 4G. 5G networks in San Mateo County cover 98.07% of homes with 5G voice and data. In total 53.83% or 239.3 square miles of San Mateo County are covered by 5G. The best 5G coverage in San Mateo County comes from AT&T Wireless with 93.64% coverage.
4G Coverage Map and Availability in San Mateo County
San Mateo 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 Mateo County, 99.97% of the area is covered by 4G data, and 99.97% is covered by 4G HD voice service. Verizon Wireless has the best 4G network in San Mateo County with 99.93% coverage.
Selecting the Best Cell Provider in San Mateo 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 Mateo County houses is best with service from Verizon Wireless, with 99.94% of homes covered.
- The best coverage across all San Mateo County land is provided by Verizon Wireless at 95.85% of land area covered.
- The current best 5G coverage comes from AT&T Wireless reporting 93.64% in San Mateo County.
- The top estimated average speed in San Mateo County, estimated at 68.94, Mbps is available through AT&T Wireless.
Mobile Service Near San Mateo County
If you live near San Mateo 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 Mateo County:
Counties close to San Mateo County
- San Francisco County, CA: worse mobile coverage
- Alameda County, CA: better mobile coverage
- Santa Clara County, CA: worse mobile coverage
- Contra Costa County, CA: worse mobile coverage
- Marin County, CA: worse mobile coverage
- Santa Cruz County, CA: worse mobile coverage
- Solano County, CA: better mobile coverage
- Napa County, CA: worse mobile coverage
- San Joaquin County, CA: better mobile coverage
- Sonoma County, CA: worse mobile coverage
Counties with similar populations to San Mateo County
- Jefferson County, KY: better mobile coverage
- Denton County, TX: better mobile coverage
- Snohomish County, WA: better mobile coverage
- Oklahoma County, OK: better mobile coverage
- Essex County, MA: worse mobile coverage
- Multnomah County, OR: better mobile coverage
- Monroe County, NY: worse mobile coverage
- Suffolk County, MA: worse mobile coverage
- Essex County, NJ: better mobile coverage
- Cobb County, GA: better mobile coverage