Warren County, IA Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Warren County, IA

Coverage rankings for Warren County, IA

Verizon currently ranks first for coverage in this area, with a coverage score of 79.7. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1Verizon79.799.7%99.7%58.1%38.9% -94 dBm
2T-Mobile79.481.9%81.9%71.8%56.6% -89 dBm
3AT&T58.698.1%98.1%16.0%7.2% -105 dBm

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

Cell phone coverage map for Warren County, IA

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 Warren County, IA

#1

Verizon

Coverage Score 79.7
In Warren County, IA
Overall
99.7%
4G LTE
99.7%
5G
58.1%
Fast 5G
38.9%
Average Signal -94 dBm
#2

T-Mobile

Coverage Score 79.4
In Warren County, IA
Overall
81.9%
4G LTE
81.9%
5G
71.8%
Fast 5G
56.6%
Average Signal -89 dBm
#3

AT&T

Coverage Score 58.6
In Warren County, IA
Overall
98.1%
4G LTE
98.1%
5G
16.0%
Fast 5G
7.2%
Average Signal -105 dBm
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Coverage by city in Warren County, IA

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

CityVerizonAT&TT-Mobile
Ackworth, IA 100.0% 100.0% 23.1% 7.7% -82 dBm 100.0% 100.0% 0.0% 0.0% -89 dBm 100.0% 100.0% 100.0% 76.9% -92 dBm
Cumming, IA 100.0% 100.0% 100.0% 94.2% -78 dBm 100.0% 100.0% 77.9% 19.8% -106 dBm 100.0% 100.0% 100.0% 100.0% -74 dBm
Hartford, IA 100.0% 100.0% 96.6% 89.7% -78 dBm 100.0% 100.0% 24.1% 20.7% -97 dBm 100.0% 100.0% 100.0% 100.0% -71 dBm
Indianola, IA 100.0% 100.0% 71.6% 54.4% -88 dBm 100.0% 100.0% 13.3% 10.5% -96 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Lacona, IA 100.0% 100.0% 12.5% 0.0% -93 dBm 100.0% 100.0% 0.0% 0.0% -105 dBm N/A N/A N/A N/A N/A
Martensdale, IA 100.0% 100.0% 88.9% 66.7% -90 dBm 100.0% 100.0% 0.0% 0.0% -104 dBm 100.0% 100.0% 88.9% 77.8% -93 dBm
Milo, IA 100.0% 100.0% 86.7% 33.3% -96 dBm 100.0% 100.0% 0.0% 0.0% -84 dBm 73.3% 73.3% 46.7% 46.7% -98 dBm
New Virginia, IA 100.0% 100.0% 50.0% 0.0% -98 dBm 100.0% 100.0% 0.0% 0.0% -106 dBm 100.0% 100.0% 91.7% 41.7% -96 dBm
Norwalk, IA 100.0% 100.0% 99.7% 93.0% -84 dBm 100.0% 100.0% 98.3% 53.3% -103 dBm 100.0% 100.0% 98.3% 93.4% -83 dBm
Prole, IA 99.8% 99.8% 64.9% 41.8% -92 dBm 95.4% 95.4% 10.7% 6.3% -107 dBm 95.1% 95.1% 88.4% 71.5% -89 dBm
Sandyville, IA 100.0% 100.0% 81.8% 0.0% -95 dBm 100.0% 100.0% 27.3% 0.0% -108 dBm 100.0% 100.0% 100.0% 100.0% -63 dBm
Spring Hill, IA 100.0% 100.0% 100.0% 100.0% -93 dBm 100.0% 100.0% 0.0% 0.0% -108 dBm 100.0% 100.0% 100.0% 100.0% -85 dBm
St. Marys, IA 100.0% 100.0% 50.0% 0.0% -80 dBm 100.0% 100.0% 75.0% 0.0% -118 dBm 100.0% 100.0% 100.0% 75.0% -90 dBm
Bevington, IA 100.0% 100.0% 81.8% 81.8% -92 dBm 100.0% 100.0% 0.0% 0.0% -87 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Carlisle, IA 100.0% 100.0% 97.2% 91.6% -81 dBm 100.0% 100.0% 65.7% 54.5% -105 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Des Moines, IA 100.0% 100.0% 98.3% 91.8% -86 dBm 99.8% 99.6% 94.7% 51.7% -101 dBm 100.0% 100.0% 100.0% 98.7% -77 dBm
West Des Moines, IA 100.0% 100.0% 96.9% 87.1% -88 dBm 98.9% 98.7% 91.6% 58.8% -104 dBm 100.0% 100.0% 99.1% 96.5% -79 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 Warren County, IA 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.