Harford County, MD Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Harford County, MD

Coverage rankings for Harford County, MD

T-Mobile currently ranks first for coverage in this area, with a coverage score of 89.5. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile89.591.5%91.4%87.5%73.3% -87 dBm
2AT&T84.598.4%97.8%91.5%57.5% -108 dBm
3Verizon69.298.9%98.9%33.5%20.2% -94 dBm

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

Cell phone coverage map for Harford County, MD

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 Harford County, MD

#1

T-Mobile

Coverage Score 89.5
In Harford County, MD
Overall
91.5%
4G LTE
91.4%
5G
87.5%
Fast 5G
73.3%
Average Signal -87 dBm
#2

AT&T

Coverage Score 84.5
In Harford County, MD
Overall
98.4%
4G LTE
97.8%
5G
91.5%
Fast 5G
57.5%
Average Signal -108 dBm
#3

Verizon

Coverage Score 69.2
In Harford County, MD
Overall
98.9%
4G LTE
98.9%
5G
33.5%
Fast 5G
20.2%
Average Signal -94 dBm
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Coverage by city in Harford County, MD

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

CityVerizonAT&TT-Mobile
Aberdeen, MD 100.0% 100.0% 63.7% 41.3% -89 dBm 100.0% 100.0% 99.4% 73.2% -102 dBm 100.0% 100.0% 98.9% 95.5% -79 dBm
Aberdeen Proving Ground, MD 97.5% 97.5% 41.5% 22.7% -95 dBm 99.3% 99.3% 97.1% 56.7% -107 dBm 78.3% 78.0% 74.4% 59.9% -89 dBm
Abingdon, MD 100.0% 100.0% 59.4% 42.0% -96 dBm 100.0% 100.0% 100.0% 85.5% -97 dBm 100.0% 100.0% 100.0% 81.2% -86 dBm
Bel Air, MD 100.0% 100.0% 92.5% 77.5% -85 dBm 100.0% 100.0% 100.0% 81.3% -97 dBm 100.0% 100.0% 100.0% 95.0% -83 dBm
Bel Air North, MD 100.0% 100.0% 48.1% 32.3% -91 dBm 98.7% 98.5% 96.2% 66.7% -106 dBm 96.5% 96.5% 93.7% 78.4% -87 dBm
Bel Air South, MD 99.6% 99.6% 55.4% 34.4% -94 dBm 99.4% 99.4% 96.9% 57.9% -105 dBm 98.3% 98.3% 96.6% 82.4% -87 dBm
Belcamp, MD 100.0% 100.0% 78.8% 62.1% -92 dBm 98.5% 98.5% 97.0% 62.1% -102 dBm 98.5% 98.5% 98.5% 95.5% -79 dBm
Churchville, MD 100.0% 100.0% 46.6% 30.4% -94 dBm 99.1% 98.4% 95.3% 49.4% -106 dBm 98.8% 98.8% 96.9% 89.8% -82 dBm
Darlington, MD 100.0% 100.0% 0.0% 0.0% -93 dBm 100.0% 100.0% 100.0% 16.7% -105 dBm 100.0% 100.0% 100.0% 100.0% -83 dBm
Edgewood, MD 100.0% 100.0% 69.2% 50.9% -91 dBm 99.8% 99.8% 97.7% 68.5% -103 dBm 99.3% 98.8% 95.8% 79.4% -86 dBm
Fallston, MD 96.3% 96.3% 38.0% 23.4% -97 dBm 94.1% 93.8% 83.9% 60.6% -109 dBm 95.2% 95.2% 90.1% 68.5% -88 dBm
Forest Hill, MD 98.9% 98.9% 34.5% 24.1% -93 dBm 98.5% 98.4% 94.0% 67.1% -108 dBm 93.4% 93.3% 87.4% 66.2% -90 dBm
Gunpowder, MD 98.9% 98.9% 51.6% 25.5% -95 dBm 99.7% 99.5% 88.0% 57.1% -111 dBm 96.5% 96.5% 89.9% 66.8% -91 dBm
Havre De Grace, MD 100.0% 100.0% 70.3% 51.0% -89 dBm 100.0% 100.0% 100.0% 90.3% -100 dBm 100.0% 100.0% 99.3% 89.0% -86 dBm
Jarrettsville, MD 100.0% 100.0% 0.5% 0.0% -86 dBm 100.0% 100.0% 95.8% 73.8% -106 dBm 99.5% 99.5% 99.5% 91.6% -83 dBm
Joppa, MD 100.0% 100.0% 65.5% 41.6% -93 dBm 99.4% 99.4% 98.7% 72.4% -106 dBm 99.6% 99.4% 99.6% 93.9% -84 dBm
Joppatowne, MD 100.0% 100.0% 60.8% 39.8% -93 dBm 98.8% 98.8% 98.8% 70.8% -106 dBm 98.8% 98.8% 98.8% 93.6% -83 dBm
Perryman, MD 100.0% 100.0% 34.3% 10.4% -95 dBm 99.3% 99.3% 91.0% 63.4% -109 dBm 99.3% 99.3% 99.3% 98.5% -83 dBm
Pleasant Hills, MD 97.2% 97.2% 63.0% 43.5% -95 dBm 98.1% 98.1% 91.7% 65.7% -107 dBm 93.5% 93.5% 86.1% 70.4% -88 dBm
Pylesville, MD 100.0% 100.0% 21.7% 5.0% -87 dBm 100.0% 100.0% 95.8% 65.8% -111 dBm 100.0% 100.0% 100.0% 92.5% -82 dBm
Riverside, MD 100.0% 100.0% 75.8% 62.1% -92 dBm 100.0% 100.0% 100.0% 69.7% -99 dBm 100.0% 100.0% 100.0% 95.5% -79 dBm
Street, MD 99.8% 99.8% 12.5% 4.4% -93 dBm 100.0% 98.1% 96.8% 68.2% -108 dBm 94.8% 94.8% 89.5% 78.4% -85 dBm
White Hall, MD 97.7% 97.7% 2.9% 0.8% -95 dBm 98.4% 98.2% 85.6% 53.9% -112 dBm 88.8% 88.8% 81.8% 63.4% -88 dBm
Whiteford, MD 98.7% 98.7% 33.9% 20.9% -93 dBm 99.5% 99.5% 91.0% 80.6% -110 dBm 95.6% 95.6% 88.4% 71.6% -87 dBm
Kingsville, MD 99.6% 99.6% 55.0% 24.9% -95 dBm 99.6% 99.2% 87.6% 55.0% -110 dBm 96.8% 96.8% 90.8% 65.9% -92 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 Harford County, MD 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.