Cell phone coverage map for South Dakota
Zoom in for local detail. Tap or click a colored area to see coverage and signal details. On mobile, use two fingers to move the map.
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Darker areas mean the carrier covers more of that location.
Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Carrierlytics.
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Cell phone coverage rankings by network in South Dakota
#1
T-Mobile
Coverage Score
65.5
In South Dakota
- Overall
- 69.4%
- 4G LTE
- 69.3% avg. -96 dBm 4G LTE signal where 4G LTE coverage exists: avg. -96 dBm
- 5G
- 57.5% avg. -92 dBm 5G signal where 5G coverage exists: avg. -92 dBm
- Fast 5G
- 37.1% avg. -88 dBm Fast 5G signal where Fast 5G coverage exists: avg. -88 dBm
#2
AT&T
Coverage Score
63.1
In South Dakota
- Overall
- 89.9%
- 4G LTE
- 89.0% avg. -107 dBm 4G LTE signal where 4G LTE coverage exists: avg. -107 dBm
- 5G
- 57.1% avg. -113 dBm 5G signal where 5G coverage exists: avg. -113 dBm
- Fast 5G
- 44.8% avg. -112 dBm Fast 5G signal where Fast 5G coverage exists: avg. -112 dBm
#3
Verizon
Coverage Score
58.7
In South Dakota
- Overall
- 90.3%
- 4G LTE
- 90.3% avg. -94 dBm 4G LTE signal where 4G LTE coverage exists: avg. -94 dBm
- 5G
- 20.4% avg. -95 dBm 5G signal where 5G coverage exists: avg. -95 dBm
- Fast 5G
- 10.2% avg. -89 dBm Fast 5G signal where Fast 5G coverage exists: avg. -89 dBm
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Coverage by county in South Dakota
Counties are shown for statewide comparison. Coverage percentages use land-area only coverage.
| County | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Aurora County, SD | 99.9% 99.9% 29.4% 13.3% | 99.4% 97.2% 93.6% 75.2% | 95.0% 95.0% 86.3% 52.3% |
| Beadle County, SD | 99.7% 99.7% 62.0% 30.8% | 99.8% 99.8% 95.0% 60.8% | 98.7% 98.7% 94.9% 71.8% |
| Bennett County, SD | 92.0% 92.0% 30.5% 13.8% | 89.4% 89.4% 39.9% 36.9% | 47.9% 47.9% 30.6% 13.7% |
| Bon Homme County, SD | 99.0% 98.9% 32.0% 18.0% | 99.8% 99.6% 90.6% 75.5% | 93.2% 93.2% 87.9% 61.4% |
| Brookings County, SD | 98.8% 98.8% 48.0% 33.1% | 97.4% 97.4% 90.3% 84.9% | 91.9% 91.9% 86.5% 70.0% |
| Brown County, SD | 99.8% 99.8% 66.3% 27.0% | 99.4% 99.4% 54.4% 22.9% | 93.7% 93.7% 83.0% 54.6% |
| Brule County, SD | 98.3% 98.3% 10.8% 4.2% | 97.5% 97.5% 74.4% 50.7% | 76.6% 76.6% 56.0% 28.0% |
| Buffalo County, SD | 96.2% 96.2% 45.1% 23.6% | 98.8% 98.8% 58.1% 44.0% | 88.0% 88.0% 77.8% 53.8% |
| Butte County, SD | 86.9% 86.9% 7.7% 3.8% | 91.7% 91.7% 35.8% 25.6% | 55.0% 54.3% 41.8% 21.5% |
| Campbell County, SD | 97.2% 97.2% 29.3% 17.7% | 93.6% 93.6% 51.8% 41.7% | 87.3% 87.3% 75.4% 50.6% |
| Charles Mix County, SD | 97.2% 97.2% 20.6% 6.3% | 98.0% 98.0% 69.7% 53.3% | 85.5% 85.5% 76.4% 52.4% |
| Clark County, SD | 96.5% 96.5% 55.2% 30.8% | 99.3% 99.3% 62.7% 47.3% | 96.0% 96.0% 87.4% 61.0% |
| Clay County, SD | 100.0% 100.0% 63.1% 37.6% | 100.0% 100.0% 98.6% 88.2% | 96.9% 96.9% 92.6% 73.5% |
| Codington County, SD | 100.0% 100.0% 40.4% 24.0% | 99.9% 99.1% 98.0% 70.7% | 99.0% 99.0% 92.5% 74.9% |
| Corson County, SD | 77.3% 77.3% 7.1% 2.7% | 84.1% 77.8% 65.9% 42.9% | 22.0% 22.0% 12.3% 5.1% |
| Custer County, SD | 73.0% 73.0% 6.6% 3.6% | 87.9% 87.3% 57.5% 41.4% | 42.1% 41.6% 31.3% 15.1% |
| Davison County, SD | 99.9% 99.9% 51.3% 16.3% | 99.9% 99.7% 97.5% 76.6% | 95.8% 95.8% 86.9% 57.8% |
| Day County, SD | 99.3% 99.3% 6.9% 1.2% | 97.7% 97.6% 75.1% 54.1% | 94.0% 94.0% 79.1% 45.3% |
| Deuel County, SD | 100.0% 100.0% 12.6% 9.0% | 99.0% 96.2% 91.2% 79.7% | 93.5% 93.5% 87.7% 69.4% |
| Dewey County, SD | 75.8% 75.8% 4.4% 2.3% | 68.6% 65.6% 43.5% 36.2% | 61.7% 61.7% 32.5% 17.4% |
| Douglas County, SD | 100.0% 100.0% 68.8% 30.3% | 99.1% 91.0% 95.4% 85.5% | 93.5% 93.5% 83.9% 58.5% |
| Edmunds County, SD | 99.0% 99.0% 7.6% 4.9% | 92.9% 92.9% 0.2% 0.2% | 97.5% 97.5% 86.2% 57.6% |
| Fall River County, SD | 86.6% 86.6% 0.0% 0.0% | 80.5% 79.7% 40.1% 29.2% | 39.8% 39.8% 28.2% 18.1% |
| Faulk County, SD | 99.0% 99.0% 31.7% 11.8% | 97.5% 97.5% 25.4% 22.7% | 93.9% 93.9% 75.4% 49.9% |
| Grant County, SD | 99.9% 99.9% 24.5% 11.2% | 99.8% 99.2% 94.7% 71.6% | 95.5% 95.5% 84.0% 53.5% |
| Gregory County, SD | 93.2% 93.1% 11.6% 7.4% | 79.5% 79.5% 15.7% 14.0% | 66.2% 66.2% 52.2% 29.7% |
| Haakon County, SD | 86.7% 86.7% 0.2% 0.0% | 90.9% 90.9% 59.6% 50.0% | 62.8% 62.8% 45.8% 27.3% |
| Hamlin County, SD | 100.0% 100.0% 20.0% 10.8% | 99.9% 99.9% 97.5% 69.5% | 99.8% 99.8% 97.6% 76.7% |
| Hand County, SD | 97.6% 97.6% 8.7% 1.5% | 92.9% 92.9% 19.7% 16.9% | 83.6% 83.5% 65.4% 32.8% |
| Hanson County, SD | 99.5% 99.5% 68.9% 30.8% | 99.7% 99.7% 91.3% 76.4% | 98.4% 98.4% 93.7% 70.6% |
| Harding County, SD | 74.6% 74.6% 3.4% 1.8% | 74.8% 74.8% 17.2% 15.9% | 31.0% 31.0% 21.7% 13.9% |
| Hughes County, SD | 98.6% 98.6% 22.7% 12.1% | 99.3% 99.3% 85.6% 68.9% | 89.5% 89.5% 78.1% 52.6% |
| Hutchinson County, SD | 98.3% 98.3% 28.4% 14.0% | 99.9% 99.9% 98.4% 81.9% | 95.3% 95.3% 87.8% 55.6% |
| Hyde County, SD | 97.1% 97.1% 33.5% 16.9% | 96.3% 96.3% 77.4% 64.8% | 91.4% 91.2% 79.6% 48.3% |
| Jackson County, SD | 96.7% 96.7% 12.6% 7.5% | 91.1% 91.1% 56.1% 45.0% | 56.8% 56.3% 49.0% 27.9% |
| Jerauld County, SD | 92.7% 92.7% 26.0% 7.1% | 98.0% 98.0% 84.8% 66.1% | 86.2% 86.2% 78.1% 50.5% |
| Jones County, SD | 92.7% 92.7% 6.9% 2.5% | 80.9% 68.0% 68.3% 56.3% | 68.3% 68.3% 50.3% 28.3% |
| Kingsbury County, SD | 100.0% 100.0% 30.1% 14.2% | 100.0% 100.0% 97.0% 83.3% | 98.7% 98.7% 92.1% 60.0% |
| Lake County, SD | 99.1% 99.1% 48.3% 24.7% | 100.0% 100.0% 98.0% 86.7% | 95.7% 95.7% 86.3% 56.7% |
| Lawrence County, SD | 81.8% 81.8% 9.0% 4.8% | 80.6% 67.7% 55.7% 38.3% | 50.5% 49.5% 45.5% 32.0% |
| Lincoln County, SD | 98.5% 98.5% 70.9% 51.2% | 98.8% 96.9% 96.5% 76.8% | 93.5% 93.5% 87.3% 72.2% |
| Lyman County, SD | 89.8% 89.8% 28.3% 14.2% | 91.4% 91.4% 72.1% 53.0% | 75.6% 75.6% 63.5% 42.7% |
| Marshall County, SD | 98.7% 98.7% 28.1% 12.2% | 97.6% 97.6% 86.6% 65.5% | 86.5% 86.1% 78.6% 56.1% |
| McCook County, SD | 99.9% 99.9% 31.3% 16.1% | 100.0% 100.0% 94.6% 82.1% | 99.1% 99.1% 95.8% 78.6% |
| McPherson County, SD | 99.5% 99.5% 11.0% 6.6% | 99.0% 99.0% 1.3% 1.3% | 92.4% 92.4% 75.5% 45.5% |
| Meade County, SD | 84.1% 84.1% 3.2% 1.5% | 89.0% 88.8% 46.1% 38.9% | 66.4% 66.1% 47.8% 25.8% |
| Mellette County, SD | 91.9% 91.8% 8.4% 4.9% | 86.9% 86.6% 66.5% 57.3% | 56.6% 56.5% 43.7% 25.8% |
| Miner County, SD | 99.8% 99.8% 62.8% 32.2% | 100.0% 100.0% 92.9% 76.4% | 96.2% 96.2% 81.0% 41.8% |
| Minnehaha County, SD | 100.0% 100.0% 46.8% 33.0% | 99.9% 99.7% 92.3% 71.0% | 97.7% 97.7% 90.8% 69.2% |
| Moody County, SD | 99.8% 99.8% 31.3% 13.2% | 99.9% 99.9% 94.5% 69.7% | 98.3% 98.3% 93.9% 72.0% |
| Oglala Lakota County, SD | 89.4% 89.4% 2.2% 1.0% | 93.4% 93.2% 46.3% 31.6% | 24.1% 23.8% 17.5% 11.9% |
| Pennington County, SD | 77.6% 77.6% 8.4% 4.9% | 75.3% 74.5% 41.5% 29.9% | 49.3% 49.0% 42.3% 30.5% |
| Perkins County, SD | 75.3% 75.3% 11.0% 3.9% | 69.2% 68.1% 34.3% 31.1% | 32.9% 32.9% 21.4% 11.6% |
| Potter County, SD | 96.4% 96.4% 0.0% 0.0% | 97.0% 97.0% 35.9% 31.9% | 93.7% 93.7% 79.2% 51.6% |
| Roberts County, SD | 99.9% 99.9% 24.9% 13.4% | 99.6% 99.3% 97.5% 78.9% | 86.7% 86.5% 72.7% 43.4% |
| Sanborn County, SD | 99.7% 99.7% 55.4% 26.3% | 99.8% 99.8% 95.7% 70.1% | 95.5% 95.5% 86.4% 54.6% |
| Spink County, SD | 99.9% 99.9% 79.9% 34.9% | 99.7% 99.7% 11.4% 8.3% | 98.3% 98.3% 93.3% 64.6% |
| Stanley County, SD | 77.4% 77.4% 5.0% 3.5% | 87.6% 83.4% 69.0% 56.4% | 60.9% 60.9% 40.6% 25.2% |
| Sully County, SD | 97.6% 97.6% 5.3% 1.3% | 93.5% 92.7% 60.7% 41.9% | 89.0% 89.0% 79.3% 49.1% |
| Todd County, SD | 91.4% 91.4% 5.0% 1.7% | 88.8% 88.8% 54.8% 41.5% | 68.0% 68.0% 51.9% 29.9% |
| Tripp County, SD | 94.5% 94.5% 16.7% 8.6% | 89.2% 89.2% 44.0% 35.5% | 64.7% 64.7% 49.6% 29.2% |
| Turner County, SD | 100.0% 100.0% 49.6% 25.6% | 100.0% 100.0% 99.0% 94.9% | 97.3% 97.3% 91.3% 69.6% |
| Union County, SD | 99.0% 99.0% 46.8% 33.9% | 95.9% 95.3% 79.0% 67.4% | 94.9% 94.9% 89.0% 76.1% |
| Walworth County, SD | 98.4% 98.4% 0.9% 0.0% | 99.3% 99.3% 45.4% 39.1% | 88.5% 88.4% 70.3% 39.5% |
| Yankton County, SD | 99.9% 99.9% 67.3% 43.2% | 99.7% 99.5% 96.4% 82.4% | 89.2% 89.2% 78.8% 51.2% |
| Ziebach County, SD | 72.9% 72.9% 8.0% 4.1% | 71.2% 71.0% 37.7% 33.6% | 36.3% 36.3% 21.3% 11.0% |
About The Coverage Data
Coverage and signal estimates are derived by Compare Wireless Carriers from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of South Dakota where that carrier has coverage.
If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.