Spink County, SD Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Spink County, SD

Coverage rankings for Spink County, SD

T-Mobile currently ranks first for coverage in this area, with a coverage score of 90.1. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile90.198.3%98.3%93.3%64.6% -94 dBm
2Verizon81.399.9%99.9%79.9%34.9% -96 dBm
3AT&T58.699.7%99.7%11.4%8.3% -106 dBm

Scores include coverage area, network type, and average signal strength.

Cell phone coverage map for Spink County, SD

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.

Coverage Key
Less covered More covered
Darker areas mean the carrier covers more of that location.

Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Compare Wireless Carriers.

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Cell phone coverage by network in Spink County, SD

#1

T-Mobile

Coverage Score 90.1
In Spink County, SD
Overall
98.3%
4G LTE
98.3%
5G
93.3%
Fast 5G
64.6%
Average Signal -94 dBm
#2

Verizon

Coverage Score 81.3
In Spink County, SD
Overall
99.9%
4G LTE
99.9%
5G
79.9%
Fast 5G
34.9%
Average Signal -96 dBm
#3

AT&T

Coverage Score 58.6
In Spink County, SD
Overall
99.7%
4G LTE
99.7%
5G
11.4%
Fast 5G
8.3%
Average Signal -106 dBm
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Coverage by city in Spink County, SD

Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.

CityVerizonAT&TT-Mobile
Ashton, SD 100.0% 100.0% 81.8% 63.6% -94 dBm 100.0% 100.0% 0.0% 0.0% -100 dBm 100.0% 100.0% 100.0% 81.8% -93 dBm
Brentford, SD 100.0% 100.0% 20.0% 0.0% -102 dBm 100.0% 100.0% 0.0% 0.0% -110 dBm 100.0% 100.0% 80.0% 40.0% -100 dBm
Camrose Colony, SD 100.0% 100.0% 100.0% 71.4% -97 dBm 100.0% 100.0% 0.0% 0.0% -103 dBm 100.0% 100.0% 85.7% 71.4% -94 dBm
Clark Colony, SD 100.0% 100.0% 71.4% 0.0% -100 dBm 100.0% 100.0% 0.0% 0.0% -111 dBm 100.0% 100.0% 100.0% 42.9% -96 dBm
Conde, SD 100.0% 100.0% 100.0% 100.0% -69 dBm 100.0% 100.0% 0.0% 0.0% -92 dBm 100.0% 100.0% 80.0% 40.0% -99 dBm
Doland, SD 100.0% 100.0% 93.8% 87.5% -86 dBm 100.0% 100.0% 0.0% 0.0% -91 dBm 100.0% 100.0% 100.0% 100.0% -83 dBm
Frankfort, SD 100.0% 100.0% 68.4% 0.0% -101 dBm 100.0% 100.0% 0.0% 0.0% -105 dBm 100.0% 100.0% 100.0% 63.2% -94 dBm
Glendale Colony, SD 100.0% 100.0% 7.7% 0.0% -101 dBm 92.3% 92.3% 7.7% 7.7% -114 dBm 92.3% 92.3% 53.8% 15.4% -103 dBm
Hillside Colony, SD 100.0% 100.0% 14.3% 0.0% -100 dBm 100.0% 100.0% 0.0% 0.0% -120 dBm 100.0% 100.0% 57.1% 0.0% -101 dBm
Mellette, SD 100.0% 100.0% 100.0% 85.7% -86 dBm 100.0% 100.0% 0.0% 0.0% -91 dBm 100.0% 100.0% 100.0% 100.0% -84 dBm
Northville, SD 100.0% 100.0% 100.0% 77.8% -92 dBm 100.0% 100.0% 0.0% 0.0% -93 dBm 100.0% 100.0% 100.0% 88.9% -86 dBm
Redfield, SD 100.0% 100.0% 83.0% 70.2% -91 dBm 100.0% 100.0% 0.0% 0.0% -95 dBm 100.0% 100.0% 95.7% 83.0% -93 dBm
Spink Colony, SD 100.0% 100.0% 12.5% 0.0% -101 dBm 100.0% 100.0% 62.5% 50.0% -119 dBm 87.5% 87.5% 75.0% 0.0% -101 dBm
Tulare, SD 100.0% 100.0% 57.1% 0.0% -96 dBm 100.0% 100.0% 0.0% 0.0% -110 dBm 57.1% 57.1% 42.9% 14.3% -100 dBm
Turton, SD 100.0% 100.0% 75.0% 0.0% -98 dBm 100.0% 100.0% 0.0% 0.0% -110 dBm 100.0% 100.0% 87.5% 25.0% -100 dBm
Hitchcock, SD 100.0% 100.0% 100.0% 85.7% -81 dBm 100.0% 100.0% 100.0% 100.0% -120 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm
Mansfield, SD 100.0% 100.0% 89.8% 40.7% -96 dBm 100.0% 100.0% 0.0% 0.0% -101 dBm 100.0% 100.0% 100.0% 94.9% -89 dBm
Verdon, SD 100.0% 100.0% 100.0% 0.0% -100 dBm 100.0% 100.0% 0.0% 0.0% -110 dBm 100.0% 100.0% 100.0% 0.0% -100 dBm

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 Spink County, SD 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.