In Mariposa County there is 1 residential Fiber provider covering 24.76% of the county. The average home can get speeds up to 800 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 Mariposa County, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Mariposa County, CA please click below.
Mariposa County, CA Availability Maps
Fiber Internet Service Provider in Mariposa County
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 Mariposa County are not shown.
Mariposa County 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 Mariposa County is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 24.76% of Mariposa County. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Sierra Tel. Call one of the companies with service in Mariposa County above to see who has service at your home.
How fast is fiber internet in Mariposa County?
The map below shows maximum fiber internet speeds by area in Mariposa County.

Fiber Internet Speed Key
The average Mariposa County home can get up to 800 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 800 Mbps, which 24.76% of residents can get.
Is fiber the fastest internet I can get in Mariposa County?
The fastest internet for you may vary based on where in Mariposa County you live. In general, dsl competes most often with fiber in the county.
- Fiber is the fastest internet type for 24.76% of Mariposa County homes.
- Cable is fastest for less than 1% of the county.
- DSL is fastest for 39.04%.
- Fixed wireless is fastest for 31.53%.
- Satellite internet may be the only option for 4.66% of Mariposa County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Mariposa County, along with details on where in Mariposa County and at what speeds.
Sierra Tel Fiber in Mariposa County, CA

Sierra Tel fiber coverage
About 24.76%, or 4,242 people, have Sierra Tel fiber internet available to them in the county. The company covers the south, southeast, central, east, and southwest Mariposa County area. Sierra Tel is a large internet service provider internet service providers in the US, with internet service available in a small portion of Mariposa County.
Sierra Tel fiber download speeds
Sierra Tel is the fastest when comparing download speeds to all other internet providers in Mariposa County. Versus other fiber providers in the area, Sierra Tel fiber is the fastest. There are no different maximum speeds throughout Mariposa County. The fastest plan anyone in Mariposa County can order from Sierra Tel goes up to 800 Mbps, and all Mariposa County customers can get this speed.
Show all download speeds
- 100.0% up to 800.0 Mbps
Sierra Tel fiber upload speeds
In Mariposa County download speeds tend to be equal to than upload speeds for Sierra Tel fiber. Compared to other ISPs, Sierra Tel is the fastest where upload speeds are concerned, and the fastest compared to other Mariposa County fiber providers. Sierra Tel offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Mariposa County is up to 800 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 800.0 Mbps
Mariposa County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Mariposa County or any of the areas nearby.
How does fiber internet in Mariposa County compare to the rest of California?
Fiber internet speeds in Mariposa County are much faster versus the average speeds in California: 0.00 Mbps in California versus 800 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in California is 0.00% versus 24.76% in Mariposa County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Mariposa County 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 counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Stanislaus County, CA: more fiber coverage, faster speeds
- San Mateo County, CA: more fiber coverage, faster speeds
- San Juan County, UT: more fiber coverage, faster speeds
- Rio Grande County, CO: more fiber coverage, faster speeds
- Alamosa County, CO: more fiber coverage, faster speeds
- Huerfano County, CO: more fiber coverage, faster speeds
- Stanton County, KS: more fiber coverage, faster speeds
- Grant County, KS: more fiber coverage, faster speeds
- Haskell County, KS: more fiber coverage, faster speeds
- Kiowa County, KS: more fiber coverage, faster speeds
Counties with Similar Populations
- Benton County, IN: less fiber coverage, faster speeds
- Andrew County, MO: more fiber coverage, faster speeds
- Yazoo County, MS: less fiber coverage, faster speeds
- Appanoose County, IA: more fiber coverage, faster speeds
- Barnes County, ND: more fiber coverage, faster speeds
- Wilkinson County, GA: more fiber coverage, faster speeds
- Archer County, TX: more fiber coverage, faster speeds
- Archuleta County, CO: less fiber coverage, faster speeds
- Baraga County, MI: more fiber coverage, faster speeds
- Wetzel County, WV: more fiber coverage, faster speeds


