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DSDownloadSpeed
FCC Data · Updated April 2026
C

Clay County Internet

Clay County, South Dakota has a Broadband Grade of C with an average download speed of 1000 Mbps across 3 ZIP codes. 100% of the county has fiber internet access, and the area averages 10 providers per ZIP code. Internet access is near the national average.

58
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in Clay County

A
0
B
0
C
3
D
0
F
0
Best

Fastest ZIP Codes in Clay County

ZIPGradeDownloadProvidersFiber
57010C1000 Mbps10Yes
57069C1000 Mbps10Yes
57073C1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in Clay County

ZIPGradeDownloadProvidersFiber
57010C1000 Mbps10Yes
57069C1000 Mbps10Yes
57073C1000 Mbps10Yes
FAQ

Frequently Asked Questions

What is the average internet speed in Clay County, South Dakota?

Clay County, South Dakota has an average maximum download speed of 1000 Mbps across 3 ZIP codes. The county received a Broadband Grade of C (58/100), 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 Clay County?

Clay 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 Clay County?

100% of ZIP codes in Clay County, South Dakota 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 Clay County?

The best-connected ZIP code in Clay County is 57010 with a Broadband Grade of C, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

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