In Santa Clara County, you’ll select from 3 mobile wireless carriers listed below. 92.9% of Santa Clara County’s land area is covered by some kind of wireless service, as are 100.00% of Santa Clara County’s 1,936,259 residents. 5G reception covers up to 99.50% of people while they are sitting at home. Note that we may have a financial relationship with some of the Santa Clara County providers below. This does not influence what data we show, and helps us provide high-quality, detailed information for free.
Santa Clara County, CA Top Cell Providers
Starter Phones Designed for Child Safety
Coverage:
T-Mobile Network
Data Speeds:
Same as T-Mobile below
Plans start at $29/mo.
View plans
Built-in Parental Controls | Approved Contacts Only | Parent-Controlled Internet Access
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. Learn more about Mint vs. other carriers.
Verizon Wireless 5G available in Santa Clara County
Coverage:
99.96% of Santa Clara County
96.15% of the USA
Data Speeds:
5G: 89.23% 4G: 99.90% 3G or 2G: 99.93%
More about Verizon Wireless in Santa Clara County
Verizon Wireless Data Speeds and Coverage in Santa Clara County
Verizon Wireless covers 99.96% 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 Santa Clara County) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
89.23% |
59.77% |
4G |
99.90% |
77.15% |
2G or 3G |
99.93% |
85.67% |
5G is the fastest wireless internet and data speed for 89.23% of homes. 4G is the fastest cell coverage for 0.00% 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 Santa Clara County mobile providers.
Verizon Wireless Voice Quality in Santa Clara County
5G voice quality can be very clear, and is available to 89.23% of homes. 4G voice is considered HD, and is available at 99.94% of Santa Clara County homes. 99.92% of homes can make calls using older 2G or 3G voice technology.
T-Mobile 5G available in Santa Clara County
Coverage:
99.84% of Santa Clara County
97.12% of the USA
Data Speeds:
5G: 90.68% 4G: 99.53% 3G or 2G: 99.70%
More about T-Mobile in Santa Clara County
T-Mobile Data Speeds and Coverage in Santa Clara County
T-Mobile covers 99.84% 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 Santa Clara County) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
90.68% |
51.30% |
4G |
99.53% |
52.53% |
2G or 3G |
99.70% |
66.93% |
5G is the fastest wireless internet and data speed for 90.68% of homes. 4G is the fastest cell coverage for 0.00% 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 Santa Clara County mobile providers.
T-Mobile Voice Quality in Santa Clara County
5G voice quality can be very clear, and is available to 90.68% of homes. 4G voice is considered HD, and is available at 99.82% of Santa Clara County homes. 99.77% of homes can make calls using older 2G or 3G voice technology.
AT&T Wireless 5G available in Santa Clara County
Coverage:
99.99% of Santa Clara County
96.67% of the USA
Data Speeds:
5G: 99.15% 4G: 99.91% 3G or 2G: 99.99%
1-833-652-2264
More about AT&T Wireless in Santa Clara County
AT&T Wireless Data Speeds and Coverage in Santa Clara County
AT&T Wireless covers 99.99% 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 Santa Clara County) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
99.15% |
48.34% |
4G |
99.91% |
66.97% |
2G or 3G |
99.99% |
83.95% |
5G is the fastest wireless internet and data speed for 99.15% of homes. 4G is the fastest cell coverage for 0.00% 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 Santa Clara County mobile providers.
AT&T Wireless Voice Quality in Santa Clara County
5G voice quality can be very clear, and is available to 99.15% of homes. 4G voice is considered HD, and is available at 99.93% of Santa Clara County homes. 99.99% of homes can make calls using older 2G or 3G voice technology.
Coverage percentages on this page are based on the percent of Santa Clara County homes that would be covered by cellular service of any kind, unless specified as Santa Clara County land area.
Fastest Cell Service Down to the Santa Clara County Neighborhood
The map below shows where Verizon, AT&T, or T-Mobile are faster in Santa Clara County, CA. Areas with no clear winner are shown as ties.
Overall, Santa Clara County ranks #1983 out of 3619 counties for the fastest mobile internet network speeds in California.

Best Santa Clara County Cell Provider Key
The central parts of the county feature better overall coverage for faster data. The opposite is true in the southwestern areas of Santa Clara County where mobile data speeds are generally slower.
Best Coverage & Data Speeds in Santa Clara 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 Santa Clara County. AT&T Wireless has 5G that covers 99.15% of the county. Cell service of any type reaches 99.99% of Santa Clara County homes.
Cheap Options for Mobile Service in Santa Clara County, CA
If the price of a Santa Clara County mobile plan is a major concern for you, cheaper mobile plans are available as well. There are several options available in Santa Clara 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 Santa Clara 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.
Santa Clara County, CA Mobile Network Coverage Maps | Voice, 4G & 5G

Santa Clara County Fastest Speeds Key
Your mobile coverage in Santa Clara 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 Santa Clara County covering 99.50% of homes in the area while 4G covers 99.97% of the county. Overall, 100.00% of homes (1,936,259 people) and 92.9% of the land (1,199.5 square miles) are covered by some form of cell technology.
5G Coverage Map and Availability in Santa Clara County

Santa Clara County 5G Coverage Key
5G is currently the most advanced network available with speeds several times faster than 4G. 5G networks in Santa Clara County cover 99.50% of homes with 5G voice and data. In total 69.20% or 893.4 square miles of Santa Clara County are covered by 5G. The best 5G coverage in Santa Clara County comes from AT&T Wireless with 99.15% coverage.
4G Coverage Map and Availability in Santa Clara County

Santa Clara 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 Santa Clara County, 99.96% 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 Santa Clara County with 99.94% coverage.
Selecting the Best Cell Provider in Santa Clara 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 Santa Clara County houses is best with service from AT&T Wireless, with 99.99% of homes covered.
- The best coverage across all Santa Clara County land is provided by Verizon Wireless at 87.66% of land area covered.
- The current best 5G coverage comes from AT&T Wireless reporting 99.15% in Santa Clara County.
- The top estimated average speed in Santa Clara County, estimated at 70.40, Mbps is available through AT&T Wireless.
Mobile Service Counties Near Santa Clara County
If you live near Santa Clara 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 Santa Clara County:
Counties close to Santa Clara County
- Merced County, CA: better coverage
- Montezuma County, CO: worse coverage
- La Plata County, CO: worse coverage
- Archuleta County, CO: worse coverage
- Alamosa County, CO: better coverage
- Costilla County, CO: worse coverage
- Baca County, CO: worse coverage
- Haskell County, KS: worse coverage
- Meade County, KS: worse coverage
- Clark County, KS: worse coverage
Counties with similar populations to Santa Clara County
- Miami-Dade County, FL: better coverage
- Kings County, NY: better coverage
- Dallas County, TX: better coverage
- Riverside County, CA: better coverage
- Gwinnett County, GA: better coverage
- Allegheny County, PA: better coverage
- Hennepin County, MN: better coverage
- Hillsborough County, FL: better coverage
- Honolulu County, HI: worse coverage
- King County, WA: better coverage







