CoverageMap

Groton

Cell coverage comparison in Groton, South Dakota

US

Based on crowdsourced speed tests and signal measurements in Groton, South Dakota, the current snapshot reflects 26 speed tests and shows medians of 13.7 Mbps download, 4.8 Mbps upload, and 61 ms latency.

Performance by Carrier in Groton

Explore median download speeds, upload performance, and network latency for each major mobile carrier in Groton, calculated from millions of real-world, crowdsourced speed tests. These results reflect typical everyday performance to help you compare carriers and choose the network that delivers the fastest speeds, most responsive connections, and broadest coverage where you live, work, and travel.

AT&T logo
Down118.4 Mbps
Up18.9 Mbps
Reliab.5.2 / 10
Cov.100.0%

Less than 10 tests conducted

T-Mobile logo
Down160.6 Mbps
Up23.9 Mbps
Reliab.6.2 / 10
Cov.100.0%

Less than 10 tests conducted

Verizon logo
Down12.7 Mbps
Up4.3 Mbps
Reliab.4.1 / 10
Cov.100.0%

24 tests conducted

Performance by Carrier shows side-by-side results for the primary mobile providers measured in Groton. Each row reflects download, upload, latency, and reliability for that carrier.

Providers included in this comparison are Verizon, T-Mobile, AT&T. Per-carrier test counts are shown in the table to indicate data accuracy.

Promoted Offers

Mint Mobile

Limited-time offer

Get the 5GB plan for $10/mo for your first 3 months

Regular price $25/month for 3 months

Visible

Limited-time

Get Visible+ for $30/mo with code 5OFF5

Get $5 off for up to 5 years. New customers only.

Network Performance in Groton

Get a complete view of mobile network performance across Groton with overall benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics calculated from millions of real-world, crowdsourced speed tests. Start with the Groton-wide snapshot to understand overall network trends, then dive deeper to compare individual carriers side-by-side and see how each performs in speed, responsiveness, and availability.

Median Performance

Download

13.7Mbps

Upload

4.8Mbps

Latency

61ms

Reliability

4.3/ 10

Top Performers

Best Download: T-Mobile

160.6 Mbps

Best Upload: T-Mobile

23.9 Mbps

Best Latency: Verizon

61 ms

Best Reliability: T-Mobile

6.2 / 10

Best Coverage: Verizon

100.0%

Coverage Snapshot

5G100.0%
4G LTE100.0%
Based on 26 speed tests

Network Performance aggregates all measured carriers in Groton to provide a baseline view of typical speeds and latency in the area. Use these medians as a quick indicator of overall network quality.

These medians are calculated from 26 tests. Current medians are 13.7 Mbps download, 4.8 Mbps upload, and 61 ms latency.

Promoted Offers

Mint Mobile

Get the 5GB plan for $10/mo for your first 3 months

Regular price $25/month for 3 months

See Deal
Visible

Get Visible+ for $30/mo with code 5OFF5

Get $5 off for up to 5 years. New customers only.

See Deal

Cell Phone Plans for Groton

Compare wireless plans from carriers with coverage in this area.

Recommended PlanSponsored

Mint Mobile 5GB Annual

$15/mo

12 month term

T-Mobile
  • 5 GB Datahigh-speed, then 128Kbps
  • Hotspot Included
  • Unlimited Minutes
  • Unlimited Texts
Recommended PlanSponsored

US Mobile 5GB

$15/mo

Monthly plan

AT&T
T-Mobile
Verizon
  • 5 GB Datahigh-speed, then data stops
  • Hotspot Included
  • Unlimited Minutes
  • Unlimited Texts
  • Taxes & Fees Included
Recommended PlanSponsored

US Mobile Unlimited Starter Dark Star

$25/mo

Monthly plan

AT&T
  • Unlimited Datahigh-speed
  • 20 GB Hotspot
  • Unlimited Minutes
  • Unlimited Texts
  • Taxes & Fees Included
Recommended PlanSponsored

Visible Base

$25/mo

Monthly plan

Verizon
  • Unlimited Datahigh-speed
  • Unlimited Hotspot
  • Unlimited Minutes
  • Unlimited Texts
  • Taxes & Fees Included
Recommended PlanSponsored

Mint Mobile Unlimited Annual

$30/mo

12 month term

T-Mobile
  • Unlimited Datahigh-speed
  • 20 GB Hotspot
  • Unlimited Minutes
  • Unlimited Texts
Limited-time offer

$15/mo first year

Recommended PlanSponsored

Visible+

$35/mo

Monthly plan

Verizon
  • Unlimited Datahigh-speed
  • Unlimited Hotspot
  • Unlimited Minutes
  • Unlimited Texts
  • Taxes & Fees Included
Limited-time offer

$30/mo for 5 years with code 5OFF5

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Cell Coverage in Groton: FAQ

What is the best cell phone carrier in Groton?

Based on crowdsourced speed tests in Groton, T-Mobile currently leads in median download speeds. Compare carriers in the performance table above for the latest results.

Why might this page show limited data for Groton?

We need at least 25 recent speed tests to generate reliable local metrics. If we don't have enough tests yet, the page focuses on maps and nearby locations while we keep collecting data.

What is the reliability score?

The reliability score summarizes how dependable mobile performance is in Groton. It uses a 0.0 to 10.0 scale (higher is better) and is calculated from real-world speed test percentiles with weighted components: download (50%), latency (30%), and upload (20%). It evaluates the lower-end experience using the bottom 10%, 5%, and 1% percentiles when enough samples are available. If local speed testing is limited, a coverage-based fallback is used from signal quality distribution (great/good/poor).

How can I check coverage at my specific address in Groton?

Use the interactive map to check signal strength at your exact address. Visit the CoverageMap interactive map to explore 4G/5G availability.

How can I contribute coverage data for Groton?

Download the CoverageMap app and run a few speed tests with location enabled. Your results help improve coverage accuracy and unlock local rankings faster.

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View Interactive Map

Explore detailed coverage data for Groton on our interactive map.

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Test coverage at your location and contribute to our crowdsourced data.

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