Rural Internet in Contra Costa County, California
High-speed internet for Contra Costa County homes and businesses beyond the reach of cable and fiber. Unlimited data on every plan, free professional installation, and a U.S. team on the phone from 9am to 9pm Central, seven days a week.
The short answer
About 2,400 homes in rural Contra Costa County have no wired internet at all — no cable, no fiber, and no phone-line service fast enough to count as broadband. That is 42% of the 5,865 rural homes in the county, according to the FCC’s own coverage data as of December 2025, and it ranks 47th out of the 58 counties in California. That is close to the California average of 48%. However, Country Broadband services those addresses. Plans start at $39.99 a month, every plan includes unlimited data with no overage charges, and professional installation is free. Because we deliver over a combination of fiber and wireless connections rather than being locked into one, we can serve addresses that single-technology providers have to turn down. Call 800-692-9907 or check your address online.
What the coverage data says about Contra Costa County
| Rural homes and businesses in the county | 5,865 |
| With no wired internet at 100 Mbps | 2,436 (42%) |
| With no wired internet even at 25 Mbps | 2,370 (40%) |
| Rank among California counties by homes affected | 47th of 58 |
| Data source | FCC National Broadband Map, December 2025 |
These are the FCC’s figures for the county’s rural area, not ours. “No wired internet” means no cable, fiber or phone-line service reaching the property at the federal broadband standard of 100 Mbps down and 20 Mbps up. See every county in California →
Where we serve in Contra Costa County
Country Broadband services rural addresses across the whole county. These are the towns and ZIP codes inside it — useful for working out whether you are in the right area, though the answer for your own house comes from the address, not the town.
Towns and communities in Contra Costa County
Concord, Antioch, Richmond, San Ramon, Pittsburg, Walnut Creek, Brentwood, Oakley, Danville, Martinez, Pleasant Hill, San Pablo, Hercules, El Cerrito, Lafayette, Orinda, Pinole, Moraga, Clayton, Acalanes Ridge, Alamo, Alhambra Valley, Bay Point, Bayview, Bethel Island, Blackhawk, Byron, Camino Tassajara, Castle Hill, Clyde, Contra Costa Centre, Crockett, Diablo, Discovery Bay, East Richmond Heights, El Sobrante, Kensington, Knightsen, Montalvin Manor, Mountain View, Norris Canyon, North Gate, North Richmond, Pacheco, Port Costa and 8 more
ZIP codes in Contra Costa County
94505, 94506, 94507, 94509, 94511, 94513, 94514, 94516, 94517, 94518, 94519, 94520, 94521, 94523, 94525, 94526, 94528, 94530, 94531, 94547, 94548, 94549, 94551, 94553, 94556, 94561, 94563, 94564, 94565, 94569, 94572, 94575, 94582, 94583, 94588, 94595, 94596, 94597, 94598, 94611 and 9 more
A town on this list is not a promise, and a town missing from it is not a no. Some addresses inside these towns already have cable or fiber running past the property and some a mile away have nothing at all — that is the whole reason the FCC counts it house by house. Check your address and get a straight answer today, or call 800-692-9907.
Plans and pricing in Contra Costa County
The same prices everywhere we serve. No rural surcharge, no hidden fees, and the equipment charge shown separately so you can see exactly what the bill will say.
| Plan | Speed | Monthly | Equipment | Activation | Term |
|---|---|---|---|---|---|
| Essentials | up to 150 Mbps download, 10 Mbps upload | $39.99/mo for 12 months, then $69.99 | $15/mo lease | $50 | 24 months |
| Unleashed | up to 180 Mbps download, 20 Mbps upload | $69.99/mo for 12 months, then $99.99 | $15/mo lease | $99 | no contract |
| Unleashed Max | up to 200 Mbps download, 20 Mbps upload | $109.99/mo for 12 months, then $179.99 | $15/mo lease | $99 | no contract |
| Business Backup | 50–100 Mbps | $49.99/mo | $15/mo lease | $150 | 12 months |
| Business Choice | 100–200 Mbps | $99.99/mo | $15/mo lease | $150 | 12 months |
Every residential plan has an 80 Mbps baseline speed, and every plan includes unlimited data and free professional installation. See full plan detail →
Why we can serve Contra Costa County when others cannot
Fiber and wireless, whichever reaches you
We are not locked into one way of delivering service. Some addresses get fiber; the rest are served wirelessly, with no cable run to the property. A provider with only one of those can only sell where it built. We can reach a lot of homes they cannot.
If you can get fiber, get fiber
Where a fiber or cable company genuinely serves your street, that is normally the faster and cheaper buy and we will tell you so on the phone.
Unlimited means unlimited
No data cap, no overage charge, no surprise bill after a heavy month. True on every plan we sell.
A person answers the phone
Call 800-692-9907 between 9am and 9pm Central, any day of the week and you reach a U.S. support team, not a menu that dead-ends.
Internet in Contra Costa County — questions, answered
Can I get internet in Contra Costa County, California?
Yes. Country Broadband serves rural addresses throughout Contra Costa County, California. That matters here because roughly a third of the 5,865 rural homes in the county — about 2,400 of them — have no wired internet at all that meets the federal 100 Mbps standard, according to the FCC's coverage data as of December 2025. Coverage is confirmed address by address rather than by ZIP code, so call 800-692-9907 with the street address and you get a straight yes or no in a couple of minutes.
How does Country Broadband deliver internet in Contra Costa County, California?
In Contra Costa County, California, as everywhere we serve, Country Broadband delivers over a combination of fiber and wireless connections, and which one reaches a particular property depends on that address. That is why we can serve homes here that other providers turn away: a company built around a single technology can only sell where that technology was built. Call 800-692-9907 with your address and we will tell you what is available there, what it costs and when it can be installed.
Why is internet so bad in Contra Costa County, California?
Cable and fiber companies build where the houses are close together, because the cost of running line is the same whether it passes four homes to the mile or forty. In Contra Costa County, California that left 42% of rural homes with no wired option. That is close to the California average of 48%. The phone company's older line, where it still runs, rarely clears the speeds a household needs today. None of that is anybody local's doing — it is arithmetic, and it is why a provider that is not tied to one delivery method can serve people the big carriers cannot.
How much does internet cost in Contra Costa County, California?
The same as everywhere else Country Broadband serves — there is no rural surcharge and no county-specific pricing. Essentials is $39.99 a month for the first 12 months, then $69.99, plus a $15 monthly equipment lease, for up to 150 Mbps on a 24-month agreement. Unleashed is $69.99 a month for the first 12 months, then $99.99, plus the $15 lease, for up to 180 Mbps with no contract. Unleashed Max is $109.99 a month for the first 12 months, then $179.99, plus the lease, for up to 200 Mbps with no contract. Activation is a one-time $50 on Essentials and $99 on Unleashed and Unleashed Max. Every plan includes unlimited data and free professional installation.
Is there unlimited internet in Contra Costa County, California with no data cap?
Yes. Every Country Broadband plan sold in Contra Costa County, California includes unlimited data with no overage charges, ever. On the Essentials plan the first 150 GB each month is high-speed data and the rest is standard data, which can slow down when the network is busy — but it never stops and it never costs extra. Unleashed and Unleashed Max are unlimited high-speed data, and Unleashed Max gets priority when the network is busy.
How soon can it be installed in Contra Costa County, California?
Installation is usually scheduled within about a week of the order, and professional installation is free on every plan. A technician comes to the property, sets the equipment up, gets the connection running and does not leave until it works. You choose the day and the arrival window when you order.
Does Country Broadband work for a farm or business in Contra Costa County, California?
Yes. Business Backup is 50 to 100 Mbps at $49.99 a month plus a $15 monthly equipment lease; Business Choice is 100 to 200 Mbps at $99.99 a month plus the same lease. Both carry a 12-month agreement and a one-time $150 activation. Farms, shops, offices and job sites in Contra Costa County, California run on them, including for card readers, cameras and remote monitoring.
Do you serve Concord, Antioch, Richmond, San Ramon, Pittsburg and Walnut Creek?
Yes — Country Broadband serves rural addresses throughout Contra Costa County, California, including around Concord, Antioch, Richmond, San Ramon, Pittsburg and Walnut Creek. Those are a few of the 53 communities in the county — the full list is on this page. What we cannot tell you from the town name alone is whether your particular street is already reached by cable or fiber, because that changes house by house. Give us the street address on 800-692-9907 and you get a straight answer in a couple of minutes.
What ZIP codes does Country Broadband cover in Contra Costa County, California?
The ZIP codes in Contra Costa County, California are 94505, 94506, 94507, 94509, 94511, 94513, 94514, 94516, 94517, 94518, 94519, 94520 and 37 more. Country Broadband services rural addresses across all of them — but a ZIP code is not how service actually gets decided. Some addresses inside any of these ZIPs already have cable or fiber running past the property, and some do not, and the two can be a mile apart. We check the exact address, which takes a couple of minutes on 800-692-9907.
What if I already have service but it is too slow?
Worth a call. A lot of rural households in Contra Costa County, California are on an older connection that was the only option when they signed up and has been overtaken since. There is no charge to have us check what is available at the address now, and if what you have is better than what we can offer there, we will tell you that too. Call 800-692-9907.
Counties near Contra Costa County
- San Joaquin County 13,460 homes
- Sonoma County 11,516 homes
- Sacramento County 8,276 homes
- Solano County 4,323 homes
- Marin County 2,279 homes
- Alameda County 1,681 homes
- El Dorado County 24,172 homes
- Mendocino County 13,541 homes
Other counties in California with the same problem
- San Diego County 30,153 homes
- San Bernardino County 27,266 homes
- Fresno County 26,961 homes
- Riverside County 25,481 homes
- Shasta County 19,643 homes
- Tulare County 19,260 homes