Bethel Island
Cell coverage comparison in Bethel Island, California
Based on crowdsourced speed tests and signal measurements in Bethel Island, California using data from Contra Costa, the current snapshot reflects over 10,000 speed tests and shows medians of 118.5 Mbps download, 7.4 Mbps upload, and 37 ms latency.
Not enough data for Bethel Island
Showing performance data for Contra Costa instead. We need at least 25 speed tests in Bethel Island to generate local metrics.
Performance by Carrier in Contra Costa
Explore median download speeds, upload performance, and network latency for each major mobile carrier in Contra Costa, 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.
Over 3,200 tests conducted
Over 1,500 tests conducted
Over 5,100 tests conducted
Performance by Carrier shows side-by-side results for the primary mobile providers measured in Contra Costa. Each row reflects download, upload, latency, and reliability for that carrier.
Providers included in this comparison are AT&T, T-Mobile, Verizon. Per-carrier test counts are shown in the table to indicate data accuracy.
Promoted Offers
Join Visible and get unlimited data for only $20/mo
Use code FRESHSTART to save $5 off any Visible plan
Network Performance
Get a complete view of mobile performance across Contra Costa with overall benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics calculated from millions of real-world, crowdsourced speed tests. Start with the Contra Costa-wide snapshot to understand overall trends, then dive deeper to compare individual carriers side-by-side and see how each performs in speed, responsiveness, and availability.
Median Performance
Download
Upload
Latency
Reliability
Top Performers
Best Download: T-Mobile
178.1 Mbps
Best Upload: T-Mobile
15.7 Mbps
Best Latency: Verizon
33 ms
Best Reliability: T-Mobile
8.7 / 10
Best Coverage: AT&T
100.0%
Coverage Snapshot
Network Performance aggregates all measured carriers in Contra Costa to provide a baseline view of typical speeds and latency in the area. Use these medians as a quick indicator of overall network quality.
Local testing in Bethel Island is limited, so these medians are based on data from Contra Costa. Current medians are 118.5 Mbps download, 7.4 Mbps upload, and 37 ms latency.
Cell Phone Plans for Bethel Island
Compare wireless plans from carriers with coverage in this area.
Mint Mobile 5GB Annual
12 month term
Mint Mobile 5GB Annual
12 month term
- 5 GB Datahigh-speed, then 128Kbps
- Hotspot Included
- Unlimited Minutes
- Unlimited Texts
US Mobile 5GB
Monthly plan
US Mobile 5GB
Monthly plan
- 5 GB Datahigh-speed, then data stops
- Hotspot Included
- Unlimited Minutes
- Unlimited Texts
- Taxes & Fees Included
US Mobile Unlimited Starter Dark Star
Monthly plan
US Mobile Unlimited Starter Dark Star
Monthly plan
- Unlimited Datahigh-speed
- 20 GB Hotspot
- Unlimited Minutes
- Unlimited Texts
- Taxes & Fees Included
Visible Base
Monthly plan
Visible Base
Monthly plan
- Unlimited Datahigh-speed
- Unlimited Hotspot
- Unlimited Minutes
- Unlimited Texts
- Taxes & Fees Included
Mint Mobile Unlimited Annual
12 month term
Mint Mobile Unlimited Annual
12 month term
- Unlimited Datahigh-speed
- 20 GB Hotspot
- Unlimited Minutes
- Unlimited Texts
$15/mo first year
Visible+
Monthly plan
Visible+
Monthly plan
- Unlimited Datahigh-speed
- Unlimited Hotspot
- Unlimited Minutes
- Unlimited Texts
- Taxes & Fees Included
$30/mo for 5 years with code 5OFF5
Page 1 of 47
Cell Coverage in Bethel Island: FAQ
What is the best cell phone carrier in Bethel Island?
Why might this page show limited data for Bethel Island?
What is the reliability score?
How can I check coverage at my specific address in Bethel Island?
How can I contribute coverage data for Bethel Island?
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 appView Interactive Map
Explore detailed coverage data for Bethel Island on our interactive map.
Open Map