9 Best Internet Providers in Contra Costa County, CA

Compare Providers Ranked by Coverage, Speed, and Customer Ratings

Above are the top 4 providers in Contra Costa County, CA for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your county.

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Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Contra Costa County ratings may vary and are shown below.

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Who is the Best Internet Provider in Contra Costa County, CA?

Sonic is the highest-rated internet provider in Contra Costa County based on 379 California customer reviews, and Sonic has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above. The chart and table below show average customer ratings from customers in Contra Costa County, California, and customers throughout the country.

Top Rated Internet Providers in Contra Costa County

Local, State, and National Ratings for all Contra Costa County Internet Providers

Based on 379 reviews from California internet customers, Sonic is the best internet service provider for Contra Costa County residents. Sonic was rated at an average of 4.36 out of 5 in our report for overall customer satisfaction. Astound Broadband wins for second-place in California, with 3.80 out of 5 stars and 23.2% coverage in Contra Costa County.

At a national level, based on 4257 national reviews for any of the providers listed above, Sonic is rated higher than any other provider, with a rating of 4.27 out of 5.

Who is the Fastest Internet Provider in Contra Costa County?

According to unbiased feedback from real internet customers in the county, they reported being happiest with speeds provided by Astound Broadband. On the other hand, based on data provided by the internet providers to the FCC, Sonic should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.

Data Reported to FCC by ISPs: Average Maximum Available in Contra Costa County

	ISP / Tech Type	Max Advertised Speed
	Sonic	10,000 Mbps
	Astound Broadband	5,000 Mbps
	AT&T	5,000 Mbps
	EarthLink	5,000 Mbps
	XFINITY from Comcast	2,000 Mbps
	Verizon	1,000 Mbps
	Unwired	300 Mbps
	Etheric Networks	250 Mbps
	T-Mobile Home Internet	100 Mbps
	Viasat	100 Mbps
	HughesNet	25 Mbps

Customer Ratings for Internet Provider Speeds in Contra Costa County

Based on data reported by Contra Costa County ISPs to the FCC, the fastest speeds in the county are available through Sonic. The company offers speeds up to 10,000 Mbps in Contra Costa County. Therefore, the average customer can get up to 8,293 Mbps if they're willing to purchase the fastest subscription tier available at their homes.

Additionally, actual customers in the county rated their satisfaction with internet speed highest with Astound Broadband. This indicates Astound Broadband reliably delivers speeds expected by the customer based on the plan they are paying for.

Who is the Cheapest Internet Provider in Contra Costa County?

California customers rate Sonic as the cheapest internet service provider in state. Data comes from customers in the state rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.

Sonic received a local rating of 4.00 out of 5, which is lower than the average across all internet providers in the country. Verizon is rated in second place for affordability by the company’s Contra Costa County customers with an average price rating of 3.67 out of 5.

The chart and graph below show how customers in Contra Costa County, California, and the United States rated the affordability of their internet service.

Rated Affordability in Contra Costa County

Contra Costa County Internet Health Assessment

ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the county and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for Contra Costa County below, including the metrics used and how Contra Costa County compares to the rest of California and nation.

Contra Costa County ISP Report Card: B+

	Metric (hover for details)	Contra Costa County	California	USA
	Fiber Availability Percent The percentage of households in Contra Costa County that have a Fiber internet connection available to their home.	57.01%	56.12%	67.25%
	Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area.	4,429 Mbps	3,631 Mbps	3,293 Mbps
	Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for Contra Costa County.	8.4	7.4	6.8

 

Contra Costa County Digital Connectivity Index: 87 / 100

	Metric (hover for details)	Contra Costa County	California	USA
	Average Household SizeA larger household size in a county indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion.	2.9	3.0	2.7
	Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city.	19%	15%	14%
	Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households.	98%	96%	95%
	Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives.	95%	93%	90%
	Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households.	84%	78%	75%
	Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service.	84%	79%	76%

Contra Costa County ISP Report Card & Digital Connectivity Index

The ISP Report Card in Contra Costa County is B+, which is much better than other counties. The local demand for broadband internet connectivity in Contra Costa County is high with a score of 87 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Contra Costa County have done a great job meeting the needs of its residents.

The Contra Costa County ISP Report Card evaluates the county on availability and speed metrics compared to other counties in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a county needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.

95% of Contra Costa County households have an internet connection despite having 99.78% availability. 84% of households have fiber, cable, or DSL, 7% have satellite, 0% are still on dial-up, and 1% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.

As you can see in the table above, while 84% of households have a broadband connection such as fiber, cable or DSL available to their home, 84% subscribe to it. A very large amount of Contra Costa County residents are taking advantage of the available internet infrastructure.

For more details, please visit our ISP Report Card and Digital Connectivity Index pages.

How do Neighboring Counties Compare to Contra Costa County?

How Much Speed does a Contra Costa County Household Need?

Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Contra Costa County is 2.9, which is smaller than the California average of 3.0 and larger than the national average of 2.7. Contra Costa County's average household income is $138,707 which is much higher than the California average of $108,618 and much higher than the national average of $90,606. Homes with more people living in them and with higher incomes tend to indicate more devices being used more often.

Contra Costa County also has 17% of its population enrolled in school between the 6th grade and college level, this is lower than the California average of 17%. Additionally, 19% of residents work from home, which is higher than the 15% of residents in California who work from home. This and other factors you can see above show us that the community of Contra Costa County has a very high need for internet connectivity and speeds.

Compared to the rest of the country, Contra Costa County households are much more technology-engaged. 98% of households have some sort of computing device, 90% have desktops or laptops in the home, and 95% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.

Which Fiber Internet Providers are Available in Contra Costa County?

Which Cable Internet Providers are Available in Contra Costa County?

Which DSL Internet Providers are Available in Contra Costa County?

Which Fixed Wireless and LTE Internet Providers are Available in Contra Costa County?

Which ISP Should You Choose in Contra Costa County?

The right ISP for you depends upon your needs, but in general we can make the following suggestions:

• The best all-around internet service provider in Contra Costa County is Sonic.
• The fastest internet provider should be Sonic. Considering speed for the money and reliability in speeds, Astound Broadband may be a better choice based on real-world local customer feedback.
• The most affordable internet provider in Contra Costa County is Sonic.
• XFINITY from Comcast, Viasat, and HughesNet has the broadest coverage in Contra Costa County, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.

How does Contra Costa County compare to other cities with a similar population?

To see how Contra Costa County stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to Contra Costa County's B+ ISP Report Card and 87 / 100 Digital Connectivity Index.