In St. Marys, you’ll select from 4 mobile wireless carriers listed below. 98.7% of St. Marys’s land area is covered by some kind of wireless service, as are 98.84% of St. Marys’s 601 residents. 5G reception covers up to 77.91% of people while they are sitting at home. Note that we may have a financial relationship with some of the St. Marys providers below. This does not influence what data we show, and helps us provide high-quality, detailed information for free.
St. Marys, WI 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.
T-Mobile 5G available in St. Marys
Coverage:
96.84% of St. Marys
97.12% of the USA
Data Speeds:
5G: 77.91% 4G: 69.16% 3G or 2G: 54.03%
More about T-Mobile in St. Marys
T-Mobile Data Speeds and Coverage in St. Marys
T-Mobile covers 96.84% of homes in the city 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 St. Marys) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
77.91% |
75.80% |
4G |
69.16% |
66.26% |
2G or 3G |
54.03% |
49.78% |
5G is the fastest wireless internet and data speed for 77.91% 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 #1 out of 4 for a combination of coverage and speed among St. Marys mobile providers.
T-Mobile Voice Quality in St. Marys
5G voice quality can be very clear, and is available to 77.91% of homes. 4G voice is considered HD, and is available at 96.84% of St. Marys homes. 54.03% of homes can make calls using older 2G or 3G voice technology.
Coverage:
35.99% of St. Marys
96.67% of the USA
Data Speeds:
4G: 8.54% 3G or 2G: 34.65%
1-833-652-2264
More about AT&T Wireless in St. Marys
AT&T Wireless Data Speeds and Coverage in St. Marys
AT&T Wireless covers 35.99% of homes in the city 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 St. Marys) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
4G |
8.54% |
8.72% |
2G or 3G |
34.65% |
28.99% |
4G is the fastest cell coverage for 8.54% of homes. 26.11% of homes can only receive 2G or 3G data. We rank AT&T Wireless as #4 out of 4 for a combination of coverage and speed among St. Marys mobile providers.
AT&T Wireless Voice Quality in St. Marys
4G voice is considered HD, and is available at 19.37% of St. Marys homes. 34.65% of homes can make calls using older 2G or 3G voice technology.
More about Verizon Wireless in St. Marys
Verizon Wireless Data Speeds and Coverage in St. Marys
Verizon Wireless covers 95.54% of homes in the city 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 St. Marys) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
4G |
71.00% |
73.16% |
2G or 3G |
71.35% |
75.62% |
4G is the fastest cell coverage for 71.00% of homes. 0.00% of homes can only receive 2G or 3G data. We rank Verizon Wireless as #3 out of 4 for a combination of coverage and speed among St. Marys mobile providers.
Verizon Wireless Voice Quality in St. Marys
4G voice is considered HD, and is available at 95.52% of St. Marys homes. 74.21% of homes can make calls using older 2G or 3G voice technology.
Coverage percentages on this page are based on the percent of St. Marys homes that would be covered by cellular service of any kind, unless specified as St. Marys land area.
Fastest Cell Service Down to the St. Marys Neighborhood
The map below shows where Verizon, AT&T, or T-Mobile are faster in St. Marys, WI. Areas with no clear winner are shown as ties.
Overall, St. Marys ranks #1577 out of 2224 cities for the fastest mobile internet network speeds in Wisconsin.

Best St. Marys Cell Provider Key
The southeastern parts of the city feature better overall coverage for faster data. The opposite is true in the northwestern areas of St. Marys where mobile data speeds are generally slower.
Best Coverage & Data Speeds in St. Marys, WI: T-Mobile
Among the largest cell phone companies in the United States, T-Mobile has the best speed and coverage in St. Marys. T-Mobile has 5G that covers 77.91% of the city. Cell service of any type reaches 96.84% of St. Marys homes.
Cheap Options for Mobile Service in St. Marys, WI
If the price of a St. Marys mobile plan is a major concern for you, cheaper mobile plans are available as well. There are several options available in St. Marys 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 St. Marys 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.
Local Mobile Providers in St. Marys, WI
The companies below provide service to areas smaller than the entire United States. For example, they may have a cell tower in St. Marys, and then partner with larger national companies to provide national service for traveling customers. We display network partners to the best of our ability but cannot guarantee coverage or charges outside of St. Marys and the providers’ coverage areas.
US Cellular 5G available in St. Marys
Coverage:
93.68% of St. Marys
10.17% of the USA
Data Speeds:
5G: 38.04% 4G: 78.76% 3G or 2G: 93.22%
More about US Cellular in St. Marys
US Cellular Data Speeds and Coverage in St. Marys
US Cellular covers 93.68% of homes in the city 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 St. Marys) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
38.04% |
32.89% |
4G |
78.76% |
77.33% |
2G or 3G |
93.22% |
93.08% |
5G is the fastest wireless internet and data speed for 38.04% of homes. 4G is the fastest cell coverage for 40.72% of homes. 0.00% of homes can only receive 2G or 3G data. We rank US Cellular as #2 out of 4 for a combination of coverage and speed among St. Marys mobile providers.
US Cellular Voice Quality in St. Marys
5G voice quality can be very clear, and is available to 38.04% of homes. 4G voice is considered HD, and is available at 91.94% of St. Marys homes. 93.21% of homes can make calls using older 2G or 3G voice technology.
St. Marys, WI Mobile Network Coverage Maps | Voice, 4G & 5G

St. Marys Fastest Speeds Key
Your mobile coverage in St. Marys may vary based on your provider and location. The map above shows the fastest mobile data speeds in and around the city. 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 St. Marys covering 77.91% of homes in the area while 4G covers 98.82% of the city. Overall, 98.84% of homes (601 people) and 98.7% of the land (31.2 square miles) are covered by some form of cell technology.
5G Coverage Map and Availability in St. Marys

St. Marys 5G Coverage Key
5G is currently the most advanced network available with speeds several times faster than 4G. 5G networks in St. Marys cover 77.91% of homes with 5G voice and data. In total 75.80% or 24.0 square miles of St. Marys are covered by 5G. The best 5G coverage in St. Marys comes from T-Mobile with 77.91% coverage.
4G Coverage Map and Availability in St. Marys

St. Marys 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 St. Marys, 84.03% of the area is covered by 4G data, and 98.82% is covered by 4G HD voice service. T-Mobile has the best 4G network in St. Marys with 96.84% coverage.
Selecting the Best Cell Provider in St. Marys for You
If you’re still struggling to choose a cell phone provider in the city, some of these facts may help you decide:
- Coverage to St. Marys houses is best with service from T-Mobile, with 96.84% of homes covered.
- The best coverage across all St. Marys land is provided by T-Mobile at 97.01% of land area covered.
- The current best 5G coverage comes from T-Mobile reporting 77.91% in St. Marys.
- The best 4G coverage is obtainable with T-Mobile, covering 96.84% of St. Marys.
- The top estimated average speed in St. Marys, estimated at 55.32, Mbps is available through T-Mobile.
Mobile Service Cities Near St. Marys
If you live near St. Marys but aren’t technically in the city, 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 St. Marys:
Cities close to St. Marys
- Oil City, WI: worse coverage
- Norwalk, WI: worse coverage
- Ontario, WI: better coverage
- Cashton, WI: better coverage
- Melvina, WI: worse coverage
- Rockton, WI: worse coverage
- Wilton, WI: better coverage
- Leon, WI: worse coverage
- Westby, WI: better coverage
- Valley, WI: worse coverage
Cities with similar populations to St. Marys
- Lakeside, MI: better coverage
- South Hanlon, TX: better coverage
- South Byron, WI: better coverage
- Smyrna, NC: better coverage
- Smithwick, TX: better coverage
- Six Mile Run, PA: worse coverage
- Silver Spring, NC: better coverage
- Lincoln Park, GA: better coverage
- Landeck, OH: better coverage
- South Hingham, MA: better coverage








