Skip to main content
DSDownloadSpeed
FCC Data · Updated April 2026
A

Gregory County Internet

Gregory County, South Dakota has a Broadband Grade of A with an average download speed of 100 Mbps across 6 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.

84
Score
100 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in Gregory County

A
6
B
0
C
0
D
0
F
0
Best

Fastest ZIP Codes in Gregory County

ZIPGradeDownloadProvidersFiber
57317A100 Mbps10Yes
57335A100 Mbps10Yes
57523A100 Mbps10Yes
57533A100 Mbps10Yes
57538A100 Mbps10Yes
57571A100 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in Gregory County

ZIPGradeDownloadProvidersFiber
57317A100 Mbps10Yes
57335A100 Mbps10Yes
57523A100 Mbps10Yes
57533A100 Mbps10Yes
57538A100 Mbps10Yes
57571A100 Mbps10Yes
FAQ

Frequently Asked Questions

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

Gregory County, South Dakota has an average maximum download speed of 100 Mbps across 6 ZIP codes. The county received a Broadband Grade of A (84/100), 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 Gregory County?

Gregory 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 Gregory County?

100% of ZIP codes in Gregory 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 Gregory County?

The best-connected ZIP code in Gregory County is 57317 with a Broadband Grade of A, 100 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

See how your connection compares to Gregory County's 100 Mbps average.