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South Dakota Internet Speeds by County (2024)
Measured internet performance across all 20 counties in South Dakota with enough speed tests to report. The state median download in 2024 was 92.6 Mbps, against a US median of 85.2 Mbps.
Counties covered
20
Fastest county
Codington
Fastest median
151.9 Mbps
Slowest median
25.5 Mbps
Every county ranked by measured download speed
| # | County | Down | Up | ms | Tests |
|---|---|---|---|---|---|
| 1 | Codington | 151.9 | 24.8 | 33.0 | 1,295 |
| 2 | Clay | 134.6 | 59.5 | 33.7 | 740 |
| 3 | Meade | 108.7 | 21.7 | 30.0 | 4,098 |
| 4 | Lawrence | 108.2 | 23.8 | 29.0 | 1,315 |
| 5 | Lincoln | 101.1 | 31.1 | 32.0 | 3,054 |
| 6 | Hughes | 100.8 | 32.0 | 32.5 | 817 |
| 7 | Beadle | 99.9 | 25.4 | 34.4 | 573 |
| 8 | Minnehaha | 98.4 | 28.6 | 31.5 | 11,461 |
| 9 | Davison | 95.5 | 36.6 | 31.9 | 677 |
| 10 | Yankton | 93.3 | 19.6 | 31.6 | 1,040 |
| 11 | Pennington | 91.2 | 20.5 | 30.4 | 2,255 |
| 12 | Brule | 89.5 | 54.6 | 36.3 | 308 |
| 13 | Union | 85.5 | 14.3 | 29.2 | 587 |
| 14 | Butte | 85.3 | 17.1 | 22.0 | 435 |
| 15 | Brookings | 85.1 | 17.4 | 35.8 | 2,516 |
| 16 | Brown | 83.6 | 18.6 | 25.8 | 1,525 |
| 17 | Custer | 65.9 | 27.1 | 29.4 | 532 |
| 18 | Oglala Lakota | 65.0 | 30.7 | 23.1 | 308 |
| 19 | Dewey | 36.8 | 16.8 | 29.8 | 636 |
| 20 | Charles Mix | 25.5 | 5.2 | 40.4 | 473 |
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