CoverageMap

Cell Coverage in Flandreau, South Dakota

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Mint Mobile

$500 off Galaxy S26 series, plus 1 year of unlimited for $15/mo

New customers only

See Deal
Klarna Mobile

Get a Klarna Mobile phone plan with priority 5G on AT&T.

Bring your number to get your first month free

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Performance by Carrier in Flandreau

Compare real-world download speeds, upload performance, and latency for major carriers in Flandreau — based on millions of crowdsourced speed tests to help you find the fastest, most reliable network.

AT&T logo
Down
211.7Mbps
Up
30.6Mbps
Reliab.
5.3/ 10
Cov.
100.0%

Less than 10 tests conducted

T-Mobile logo
Down
8.0Mbps
Up
2.4Mbps
Reliab.
5.1/ 10
Cov.
100.0%

Less than 10 tests conducted

Verizon logo
Down
35.0Mbps
Up
3.6Mbps
Reliab.
7.8/ 10
Cov.
100.0%

25 tests conducted

These results compare 3 mobile carriers measured in FlandreauAT&T, T-Mobile, Verizon — using median values calculated from crowdsourced speed tests. Each card shows download speed, upload speed, and reliability to give you a complete picture of real-world network performance.

AT&T delivers the fastest median download at 211.7 Mbps, making it the top performer for raw download throughput. AT&T leads in coverage, reaching 100.0% of the area based on FCC data. Verizon ranks highest for reliability with a score of 7.8/10, reflecting consistent connection quality across tests.

Promoted Offers

Mint Mobile

$500 off Galaxy S26 series, plus 1 year of unlimited for $15/mo

New customers only

See Deal
Klarna Mobile

Get a Klarna Mobile phone plan with priority 5G on AT&T.

Bring your number to get your first month free

See Deal

Network Performance

Based on crowdsourced speed tests and signal measurements in Flandreau, South Dakota, get a complete view of mobile performance with area-wide benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics from real-world tests, then compare carriers side-by-side for speed, responsiveness, and availability.

Median Performance

Download

35.7Mbps

Upload

3.7Mbps

Latency

48ms

Reliability

7.7/ 10

Top Performers

Best Download: AT&T

211.7 Mbps

Best Upload: AT&T

30.6 Mbps

Best Latency: Verizon

48 ms

Best Reliability: Verizon

7.8 / 10

Best Coverage: AT&T

100.0%

Coverage Snapshot

5G100.0%
4G LTE100.0%
Based on 34 speed tests

Network Performance aggregates all measured carriers in Flandreau 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 34 tests. Current medians are 35.7 Mbps download, 3.7 Mbps upload, and 48 ms latency.

Promoted Offers

Mint Mobile

$500 off Galaxy S26 series, plus 1 year of unlimited for $15/mo

New customers only

See Deal
Klarna Mobile

Get a Klarna Mobile phone plan with priority 5G on AT&T.

Bring your number to get your first month free

See Deal

Cell Phone Plans for Flandreau

Compare wireless plans from carriers with coverage in this area.

Recommended PlanSponsored

Mint Mobile 5GB Annual

12 month term

T-Mobile
$15/mo
5 GB Data
Hotspot Included
Unlimited min
Unlimited texts
Recommended PlanSponsored

US Mobile 5GB

Monthly plan

AT&T
T-Mobile
Verizon
$15/mo
5 GB Data
Hotspot Included
Unlimited min
Unlimited texts
Taxes & fees included
Recommended PlanSponsored

US Mobile Unlimited Starter Dark Star

Monthly plan

AT&T
$25/mo
Unlimited Data
20 GB Hotspot
Unlimited min
Unlimited texts
Taxes & fees included
Recommended PlanSponsored

Visible Base

Monthly plan

Verizon
$25/mo
Unlimited Data
Unlimited Hotspot
Unlimited min
Unlimited texts
Taxes & fees included
Recommended PlanSponsored

Mint Mobile Unlimited Annual

12 month term

T-Mobile
$30/mo
Unlimited Data
20 GB Hotspot
Unlimited min
Unlimited texts
Limited-time offer

$15/mo first year

Recommended PlanSponsored

Visible+

Monthly plan

Verizon
$35/mo
Unlimited Data
Unlimited Hotspot
Unlimited min
Unlimited texts
Taxes & fees included
Limited-time offer

$30/mo for 5 years with code 5OFF5

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Cell Coverage in Flandreau: FAQ

What is the best cell phone carrier in Flandreau?

Based on crowdsourced speed tests in Flandreau, AT&T 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 Flandreau?

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 Flandreau. 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 Flandreau?

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 Flandreau?

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

Get the app