Home Reports 2025 Global United States California

Internet Speed Report California June 2025

A comprehensive analysis of broadband performance in California based on real user speed tests conducted on Bandwidth Place.

Total Tests

877

Avg. Download

348.89Mbps

Avg. Upload

108.07Mbps

Avg. Ping

35.1ms

Top Internet Providers

Provider Avg Speed
Charter Communications 324.9 Mbps
Comcast Cable Communications 412.1 Mbps
Charter Communications 269.9 Mbps
Charter Communications 324.7 Mbps
Comcast Cable Communications, LLC 303.0 Mbps
Comcast Cable Communications, LLC 492.6 Mbps
Charter Communications 279.9 Mbps
Comcast Cable Communications, LLC 421.3 Mbps
Charter Communications 255.9 Mbps
Charter Communications 337.2 Mbps

Top Devices

Device Share
iPhone 10.5%
Generic Smartphone 3.8%
iPhone 3.2%
Generic Smartphone 1.5%

Top Browsers

Browser Share
Chrome 15.2%
Chrome 14.9%
Safari 11.4%
Mobile Safari 10.5%
Firefox 4.2%
Chrome 4.2%
Chrome Mobile 3.8%
Mobile Safari 3.2%
Chrome 3.2%
Firefox 2.9%

Analysis Methodology

The data presented in this report is aggregated directly from real user speed tests performed on the Bandwidth Place platform testing network nodes globally during 2025. We calculate the localized metrics using strict data sanity checks to prevent skewed results from anomalies or extreme outliers.

SEO & Location Routing Structure: Because location data is structurally rigid, caching data dynamically to static hierarchy (Country -> State -> City) provides significant improvements to PageSpeed metrics and Time to First Byte (TTFB). This strategy ensures optimum indexing for search engines processing localized queries.