Contra Costa County Internet
Contra Costa County, California has a Broadband Grade of A with an average download speed of 1000 Mbps across 43 ZIP codes. 100% of the county has fiber internet access, and the area averages 10 providers per ZIP code. Internet access is above average for the U.S.
ZIP Code Grades in Contra Costa County
Fastest ZIP Codes in Contra Costa County
| ZIP | Grade | Download | Providers | Fiber |
|---|---|---|---|---|
| 94505 | A | 1000 Mbps | 10 | Yes |
| 94506 | A | 1000 Mbps | 10 | Yes |
| 94507 | A | 1000 Mbps | 10 | Yes |
| 94509 | A | 1000 Mbps | 10 | Yes |
| 94511 | A | 1000 Mbps | 10 | Yes |
| 94513 | A | 1000 Mbps | 10 | Yes |
| 94514 | A | 1000 Mbps | 10 | Yes |
| 94516 | A | 1000 Mbps | 10 | Yes |
| 94517 | A | 1000 Mbps | 10 | Yes |
| 94518 | A | 1000 Mbps | 10 | Yes |
Slowest ZIP Codes in Contra Costa County
| ZIP | Grade | Download | Providers | Fiber |
|---|---|---|---|---|
| 94505 | A | 1000 Mbps | 10 | Yes |
| 94506 | A | 1000 Mbps | 10 | Yes |
| 94507 | A | 1000 Mbps | 10 | Yes |
| 94509 | A | 1000 Mbps | 10 | Yes |
| 94511 | A | 1000 Mbps | 10 | Yes |
| 94513 | A | 1000 Mbps | 10 | Yes |
| 94514 | A | 1000 Mbps | 10 | Yes |
| 94516 | A | 1000 Mbps | 10 | Yes |
| 94517 | A | 1000 Mbps | 10 | Yes |
| 94518 | A | 1000 Mbps | 10 | Yes |
Frequently Asked Questions
What is the average internet speed in Contra Costa County, California?
Contra Costa County, California has an average maximum download speed of 1000 Mbps across 43 ZIP codes. The county received a Broadband Grade of A (90/100), which factors in download speed, provider competition, fiber availability, and upload speed. This meets the FCC broadband standard of 100 Mbps download.
How many internet providers are in Contra Costa County?
Contra Costa County has an average of 10 internet providers per ZIP code. 100% of ZIP codes in the county have fiber internet access. Having 3 or more providers typically leads to better prices and service quality through competition.
Is there fiber internet in Contra Costa County?
100% of ZIP codes in Contra Costa County, California have fiber internet available. Fiber provides the fastest and most reliable connections, typically 500 Mbps to 5 Gbps with symmetrical upload speeds. Fiber coverage in this county is above the national average.
What is the best ZIP code for internet in Contra Costa County?
The best-connected ZIP code in Contra Costa County is 94505 with a Broadband Grade of A, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.
See how your connection compares to Contra Costa County's 1000 Mbps average.