In Duarte there are 3 residential Fiber providers covering 90.55% of the city. The average home can get speeds up to 4,945 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Fiber internet providers in Duarte, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Duarte, CA please click below.
Fiber Internet Service Providers in Duarte
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Duarte are not shown.
Duarte Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Duarte is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 90.55% of Duarte. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Frontier. Call one of the companies with service in Duarte above to see who has service at your home.
How fast is fiber internet in Duarte?
The map below shows maximum fiber internet speeds by area in Duarte.

Fiber Internet Speed Key
The average Duarte home can get up to 4,945 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 5,000 Mbps, which 89.31% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.24% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Duarte.
Fiber internet speeds tend to be faster in the southwest parts of Duarte, and slower in the central areas of the city.
Is fiber the fastest internet I can get in Duarte?
The fastest internet for you may vary based on where in Duarte you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 90.55% of Duarte homes.
- Cable is fastest for 8.12% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Duarte homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Duarte, along with details on where in Duarte and at what speeds.
Frontier Communications Fiber in Duarte, CA

Frontier fiber coverage
About 89.31%, or 23,323 people, have Frontier fiber internet available to them in the city. The company covers the entire Duarte area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in most of Duarte.
Frontier Communications fiber download speeds
Frontier is one of the fastest when comparing download speeds to all other internet providers in Duarte. Versus other fiber providers in the area, Frontier fiber is one of the fastest. There are no different maximum speeds throughout Duarte. The fastest plan anyone in Duarte can order from Frontier goes up to 5,000 Mbps, and all Duarte customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
Frontier Communications fiber upload speeds
In Duarte download speeds tend to be equal to than upload speeds for Frontier fiber. Compared to other ISPs, Frontier is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Duarte fiber providers. Frontier offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duarte is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Spectrum Fiber in Duarte, CA

Spectrum fiber coverage
About 2.52%, or 658 people, have Spectrum fiber internet available to them in the city. The company covers the west and central Duarte area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Duarte.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Duarte. Versus other fiber providers in the area, Spectrum fiber is the slowest. There are no different maximum speeds throughout Duarte. The fastest plan anyone in Duarte can order from Spectrum goes up to 1,000 Mbps, and all Duarte customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In Duarte download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the slowest compared to other Duarte fiber providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duarte is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Astound Broadband Fiber in Duarte, CA

Astound Broadband fiber coverage
About 1.46%, or 382 people, have Astound Broadband fiber internet available to them in the city. The company covers the west Duarte area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Duarte.
Astound Broadband fiber download speeds
Astound Broadband is one of the fastest when comparing download speeds to all other internet providers in Duarte. Versus other fiber providers in the area, Astound Broadband fiber is one of the fastest. There are no different maximum speeds throughout Duarte. The fastest plan anyone in Duarte can order from Astound Broadband goes up to 5,000 Mbps, and all Duarte customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
Astound Broadband fiber upload speeds
In Duarte download speeds tend to be equal to than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Duarte fiber providers. Astound Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duarte is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Duarte Fiber by Area
This information is most helpful to those looking for homes or considering moving to Duarte or any of the areas nearby.
How does fiber internet in Duarte compare to the rest of California?
Fiber internet speeds in Duarte are much faster versus the average speeds in California: 0.00 Mbps in California versus 4,945 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in California is 0.00% versus 90.55% in Duarte.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Duarte are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Bradbury, CA: more fiber coverage, faster speeds
- Monrovia, CA: more fiber coverage, slower speeds
- Irwindale, CA: more fiber coverage, faster speeds
- Vincent, CA: more fiber coverage, faster speeds
- Baldwin Park, CA: more fiber coverage, faster speeds
- Azusa, CA: less fiber coverage, faster speeds
- Arcadia, CA: less fiber coverage, slower speeds
- Citrus, CA: more fiber coverage, faster speeds
- Sierra Madre, CA: more fiber coverage, faster speeds
- Temple City, CA: less fiber coverage, slower speeds
Cities with Similar Populations
- El Cerrito, CA: more fiber coverage, faster speeds
- University Park, TX: less fiber coverage, slower speeds
- Uniontown, PA: less fiber coverage, faster speeds
- Tiffin, OH: less fiber coverage, faster speeds
- Stillwater, MN: less fiber coverage, faster speeds
- Stephenville, TX: less fiber coverage, slower speeds
- South Windsor, CT: less fiber coverage, faster speeds
- Ferndale, WA: less fiber coverage, faster speeds
- Enfield, CT: less fiber coverage, faster speeds
- El Sobrante, CA: less fiber coverage, faster speeds


