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DSDownloadSpeed
FCC Data · Updated April 2026
B

Mariposa County Internet

Mariposa County, California has a Broadband Grade of B with an average download speed of 1000 Mbps across 8 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.

60
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in Mariposa County

A
0
B
8
C
0
D
0
F
0
Best

Fastest ZIP Codes in Mariposa County

ZIPGradeDownloadProvidersFiber
93623B1000 Mbps10Yes
95306B1000 Mbps10Yes
95311B1000 Mbps10Yes
95318B1000 Mbps10Yes
95325B1000 Mbps10Yes
95338B1000 Mbps10Yes
95345B1000 Mbps10Yes
95389B1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in Mariposa County

ZIPGradeDownloadProvidersFiber
93623B1000 Mbps10Yes
95306B1000 Mbps10Yes
95311B1000 Mbps10Yes
95318B1000 Mbps10Yes
95325B1000 Mbps10Yes
95338B1000 Mbps10Yes
95345B1000 Mbps10Yes
95389B1000 Mbps10Yes
FAQ

Frequently Asked Questions

What is the average internet speed in Mariposa County, California?

Mariposa County, California has an average maximum download speed of 1000 Mbps across 8 ZIP codes. The county received a Broadband Grade of B (60/100), 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 Mariposa County?

Mariposa 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 Mariposa County?

100% of ZIP codes in Mariposa 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 Mariposa County?

The best-connected ZIP code in Mariposa County is 93623 with a Broadband Grade of B, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

See how your connection compares to Mariposa County's 1000 Mbps average.