Carrierlytics County Coverage Guide

Shiawassee County, MI Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Shiawassee County, MI.

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

Shiawassee County, MI

Cell phone coverage map for Shiawassee County, MI

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 Shiawassee County, MI

#1

Verizon

Coverage Score 80.9
In Shiawassee County, MI
Overall
100.0%
4G LTE
100.0% avg. -90 dBm 4G LTE signal where 4G LTE coverage exists: avg. -90 dBm
5G
69.5% avg. -94 dBm 5G signal where 5G coverage exists: avg. -94 dBm
Fast 5G
43.5% avg. -89 dBm Fast 5G signal where Fast 5G coverage exists: avg. -89 dBm
#2

T-Mobile

Coverage Score 79.4
In Shiawassee County, MI
Overall
83.9%
4G LTE
83.3% avg. -95 dBm 4G LTE signal where 4G LTE coverage exists: avg. -95 dBm
5G
75.0% avg. -90 dBm 5G signal where 5G coverage exists: avg. -90 dBm
Fast 5G
50.9% avg. -85 dBm Fast 5G signal where Fast 5G coverage exists: avg. -85 dBm
#3

AT&T

Coverage Score 73.7
In Shiawassee County, MI
Overall
99.8%
4G LTE
99.8% avg. -104 dBm 4G LTE signal where 4G LTE coverage exists: avg. -104 dBm
5G
79.4% avg. -110 dBm 5G signal where 5G coverage exists: avg. -110 dBm
Fast 5G
50.9% avg. -107 dBm Fast 5G signal where Fast 5G coverage exists: avg. -107 dBm
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Coverage by city in Shiawassee County, MI

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

City Verizon AT&T T-Mobile
Bancroft, MI 100.0% 100.0% 71.4% 35.7% 100.0% 100.0% 100.0% 71.4% 100.0% 100.0% 100.0% 71.4%
Byron, MI 100.0% 100.0% 100.0% 94.1% 100.0% 100.0% 94.1% 5.9% N/A N/A N/A N/A
Corunna, MI 100.0% 100.0% 79.5% 46.6% 100.0% 100.0% 100.0% 67.1% 100.0% 100.0% 100.0% 89.0%
Durand, MI 100.0% 100.0% 90.2% 58.5% 100.0% 100.0% 100.0% 82.9% 97.6% 97.6% 90.2% 29.3%
Henderson, MI 100.0% 100.0% 80.0% 57.8% 100.0% 100.0% 82.2% 77.8% 100.0% 100.0% 100.0% 100.0%
Laingsburg, MI 100.0% 100.0% 97.3% 97.3% 100.0% 100.0% 2.7% 0.0% 100.0% 100.0% 100.0% 97.3%
Lennon, MI 100.0% 100.0% 57.1% 33.3% 100.0% 100.0% 100.0% 23.8% 76.2% 76.2% 47.6% 9.5%
Middletown, MI 100.0% 100.0% 91.7% 58.3% 100.0% 100.0% 100.0% 66.7% 100.0% 100.0% 100.0% 100.0%
Morrice, MI 100.0% 100.0% 86.2% 65.5% 100.0% 100.0% 100.0% 93.1% 100.0% 100.0% 100.0% 62.1%
New Lothrop, MI 100.0% 100.0% 4.8% 0.0% 95.2% 95.2% 9.5% 4.8% 4.8% 4.8% 4.8% 0.0%
Owosso, MI 100.0% 100.0% 89.6% 72.0% 100.0% 100.0% 100.0% 78.4% 100.0% 100.0% 100.0% 100.0%
Perry, MI 100.0% 100.0% 75.8% 35.5% 100.0% 100.0% 100.0% 85.5% 100.0% 100.0% 100.0% 90.3%
Shaftsburg, MI 100.0% 100.0% 95.8% 66.7% 100.0% 100.0% 100.0% 87.5% 100.0% 100.0% 91.7% 62.5%
Vernon, MI 100.0% 100.0% 91.7% 58.3% 100.0% 100.0% 95.8% 12.5% 100.0% 100.0% 100.0% 100.0%
Haslett, MI 100.0% 100.0% 98.4% 83.0% 99.7% 99.7% 67.0% 43.7% 98.9% 98.1% 90.4% 62.9%
Lake Victoria, MI 100.0% 100.0% 10.0% 5.0% 100.0% 100.0% 5.0% 0.0% 100.0% 100.0% 90.0% 25.0%
Ovid, MI 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 0.0% 0.0% 100.0% 100.0% 100.0% 100.0%

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 Shiawassee County, MI 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.