Carrierlytics County Coverage Guide

Sumner County, KS Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Sumner County, KS.

Using FCC mobile coverage data across cities and ZIP codes in Sumner County, KS, Carrierlytics compares the top-performing networks and the cheapest plans that use them.

Sumner County, KS

Cell phone coverage map for Sumner County, KS

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 Carrierlytics.

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Cell phone coverage rankings by network in Sumner County, KS

#1

Verizon

Coverage Score 82.7
In Sumner County, KS
Overall
99.5%
4G LTE
99.5% avg. -89 dBm 4G LTE signal where 4G LTE coverage exists: avg. -89 dBm
5G
68.6% avg. -93 dBm 5G signal where 5G coverage exists: avg. -93 dBm
Fast 5G
50.2% avg. -90 dBm Fast 5G signal where Fast 5G coverage exists: avg. -90 dBm
#2

T-Mobile

Coverage Score 75.2
In Sumner County, KS
Overall
83.0%
4G LTE
83.0% avg. -96 dBm 4G LTE signal where 4G LTE coverage exists: avg. -96 dBm
5G
70.8% avg. -91 dBm 5G signal where 5G coverage exists: avg. -91 dBm
Fast 5G
47.1% avg. -87 dBm Fast 5G signal where Fast 5G coverage exists: avg. -87 dBm
#3

AT&T

Coverage Score 65.4
In Sumner County, KS
Overall
98.6%
4G LTE
98.6% avg. -105 dBm 4G LTE signal where 4G LTE coverage exists: avg. -105 dBm
5G
59.6% avg. -115 dBm 5G signal where 5G coverage exists: avg. -115 dBm
Fast 5G
39.5% avg. -113 dBm Fast 5G signal where Fast 5G coverage exists: avg. -113 dBm
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Coverage by city in Sumner County, KS

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

City Verizon AT&T T-Mobile
Argonia, KS 100.0% 100.0% 100.0% 94.1% 100.0% 100.0% 64.7% 52.9% 5.9% 5.9% 0.0% 0.0%
Belle Plaine, KS 100.0% 100.0% 80.0% 35.0% 100.0% 100.0% 35.0% 20.0% 100.0% 100.0% 100.0% 100.0%
Caldwell, KS 100.0% 100.0% 96.2% 80.8% 80.8% 80.8% 3.8% 3.8% 11.5% 11.5% 0.0% 0.0%
Conway Springs, KS 100.0% 100.0% 0.0% 0.0% 100.0% 100.0% 75.0% 40.0% 35.0% 35.0% 10.0% 0.0%
Geuda Springs, KS 100.0% 100.0% 77.8% 55.6% 100.0% 100.0% 55.6% 33.3% 44.4% 44.4% 0.0% 0.0%
Hunnewell, KS 100.0% 100.0% 0.0% 0.0% 100.0% 100.0% 50.0% 41.7% 100.0% 100.0% 100.0% 91.7%
Mayfield, KS 100.0% 100.0% 100.0% 83.3% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 83.3% 33.3%
Milan, KS 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 66.7% 66.7% N/A N/A N/A N/A
Milton, KS 100.0% 100.0% 75.5% 74.5% 100.0% 100.0% 46.1% 32.4% 98.0% 98.0% 90.2% 67.6%
Oxford, KS 100.0% 100.0% 0.0% 0.0% 100.0% 100.0% 100.0% 85.7% 100.0% 100.0% 100.0% 100.0%
South Haven, KS 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 4.5% 4.5% 90.9% 90.9% 68.2% 27.3%
Wellington, KS 100.0% 100.0% 94.3% 90.3% 99.4% 99.4% 93.1% 79.4% 93.1% 93.1% 88.0% 83.4%
Mulvane, KS 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
Peck, KS 100.0% 100.0% 85.7% 85.7% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 85.7%

About The Coverage Data

Coverage and signal estimates are derived by Carrierlytics 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 Sumner County, KS 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.