Nassau County, NY Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Nassau County, NY

Coverage rankings for Nassau County, NY

T-Mobile currently ranks first for coverage in this area, with a coverage score of 97.0. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile97.097.4%97.4%96.0%90.1% -81 dBm
2Verizon90.099.7%99.7%79.7%64.5% -90 dBm
3AT&T86.298.4%98.3%95.0%53.5% -102 dBm

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

Cell phone coverage map for Nassau County, NY

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 Nassau County, NY

#1

T-Mobile

Coverage Score 97.0
In Nassau County, NY
Overall
97.4%
4G LTE
97.4%
5G
96.0%
Fast 5G
90.1%
Average Signal -81 dBm
#2

Verizon

Coverage Score 90.0
In Nassau County, NY
Overall
99.7%
4G LTE
99.7%
5G
79.7%
Fast 5G
64.5%
Average Signal -90 dBm
#3

AT&T

Coverage Score 86.2
In Nassau County, NY
Overall
98.4%
4G LTE
98.3%
5G
95.0%
Fast 5G
53.5%
Average Signal -102 dBm
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Coverage by city in Nassau County, NY

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

CityVerizonAT&TT-Mobile
Albertson, NY 100.0% 100.0% 100.0% 94.4% -88 dBm 100.0% 100.0% 94.4% 27.8% -102 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm
Atlantic Beach, NY 100.0% 100.0% 100.0% 90.9% -99 dBm 100.0% 100.0% 100.0% 90.9% -91 dBm 100.0% 100.0% 100.0% 100.0% -68 dBm
Baldwin, NY 100.0% 100.0% 84.6% 59.6% -89 dBm 100.0% 100.0% 99.0% 55.8% -97 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Barnum Island, NY 100.0% 100.0% 100.0% 100.0% -81 dBm 100.0% 100.0% 100.0% 65.0% -102 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Baxter Estates, NY 100.0% 100.0% 80.0% 80.0% -92 dBm 100.0% 100.0% 100.0% 80.0% -98 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Bay Park, NY 100.0% 100.0% 100.0% 91.7% -87 dBm 91.7% 91.7% 91.7% 66.7% -98 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm
Bayville, NY 100.0% 100.0% 84.8% 66.7% -94 dBm 90.9% 90.9% 87.9% 69.7% -104 dBm 84.8% 84.8% 84.8% 78.8% -85 dBm
Bellerose, NY 100.0% 100.0% 100.0% 100.0% -83 dBm 100.0% 100.0% 100.0% 100.0% -103 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Bellerose Terrace, NY 100.0% 100.0% 100.0% 100.0% -95 dBm 100.0% 100.0% 100.0% 50.0% -98 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Bellmore, NY 100.0% 100.0% 98.4% 86.9% -88 dBm 100.0% 100.0% 96.7% 55.7% -99 dBm 100.0% 100.0% 100.0% 100.0% -79 dBm
Bethpage, NY 100.0% 100.0% 88.6% 76.1% -85 dBm 100.0% 100.0% 100.0% 71.6% -96 dBm 100.0% 100.0% 100.0% 92.0% -81 dBm
Brookville, NY 98.9% 98.9% 27.4% 14.7% -95 dBm 94.7% 87.4% 81.1% 33.7% -112 dBm 80.0% 80.0% 73.7% 51.6% -92 dBm
Carle Place, NY 100.0% 100.0% 100.0% 91.3% -84 dBm 100.0% 100.0% 100.0% 56.5% -93 dBm 100.0% 100.0% 100.0% 100.0% -70 dBm
Cedarhurst, NY 100.0% 100.0% 100.0% 100.0% -89 dBm 100.0% 100.0% 100.0% 31.3% -111 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Centre Island, NY 100.0% 100.0% 34.8% 26.1% -101 dBm 100.0% 100.0% 100.0% 73.9% -112 dBm 100.0% 100.0% 87.0% 30.4% -98 dBm
Cove Neck, NY 96.7% 96.7% 16.7% 10.0% -100 dBm 96.7% 96.7% 93.3% 56.7% -116 dBm 70.0% 70.0% 53.3% 6.7% -100 dBm
East Atlantic Beach, NY 100.0% 100.0% 100.0% 62.5% -98 dBm 100.0% 100.0% 100.0% 75.0% -96 dBm 100.0% 100.0% 100.0% 100.0% -84 dBm
East Hills, NY 100.0% 100.0% 71.4% 48.2% -94 dBm 98.2% 98.2% 96.4% 57.1% -101 dBm 100.0% 100.0% 100.0% 96.4% -84 dBm
East Massapequa, NY 100.0% 100.0% 89.3% 65.5% -90 dBm 100.0% 100.0% 98.8% 63.1% -98 dBm 100.0% 100.0% 100.0% 97.6% -81 dBm
East Meadow, NY 100.0% 100.0% 84.3% 63.4% -88 dBm 100.0% 100.0% 96.1% 41.8% -102 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
East Norwich, NY 100.0% 100.0% 92.0% 76.0% -90 dBm 100.0% 100.0% 100.0% 92.0% -100 dBm 100.0% 100.0% 96.0% 92.0% -88 dBm
East Rockaway, NY 100.0% 100.0% 92.0% 72.0% -93 dBm 100.0% 100.0% 96.0% 44.0% -100 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
East Williston, NY 100.0% 100.0% 93.3% 73.3% -92 dBm 100.0% 100.0% 100.0% 66.7% -97 dBm 100.0% 100.0% 100.0% 100.0% -82 dBm
Elmont, NY 100.0% 100.0% 100.0% 96.4% -85 dBm 100.0% 100.0% 97.6% 53.0% -95 dBm 100.0% 100.0% 100.0% 100.0% -75 dBm
Farmingdale, NY 100.0% 100.0% 96.2% 88.5% -88 dBm 100.0% 100.0% 100.0% 80.8% -98 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Floral Park, NY 100.0% 100.0% 100.0% 87.9% -93 dBm 100.0% 100.0% 97.0% 42.4% -99 dBm 100.0% 100.0% 100.0% 100.0% -82 dBm
Flower Hill, NY 100.0% 100.0% 95.0% 67.5% -89 dBm 100.0% 100.0% 100.0% 52.5% -102 dBm 100.0% 100.0% 100.0% 97.5% -82 dBm
Franklin Square, NY 100.0% 100.0% 100.0% 98.6% -79 dBm 98.6% 98.6% 93.0% 33.8% -105 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Freeport, NY 100.0% 100.0% 96.7% 86.7% -98 dBm 96.7% 96.7% 90.0% 50.0% -96 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Garden City, NY 100.0% 100.0% 99.2% 86.2% -86 dBm 100.0% 100.0% 97.7% 47.7% -97 dBm 100.0% 100.0% 100.0% 100.0% -78 dBm
Garden City Park, NY 100.0% 100.0% 100.0% 100.0% -77 dBm 100.0% 100.0% 100.0% 50.0% -95 dBm 100.0% 100.0% 100.0% 100.0% -74 dBm
Garden City South, NY 100.0% 100.0% 100.0% 100.0% -83 dBm 100.0% 100.0% 77.8% 11.1% -102 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Glen Cove, NY 100.0% 100.0% 37.3% 15.5% -91 dBm 100.0% 100.0% 98.8% 67.1% -104 dBm 96.9% 96.9% 96.3% 90.7% -83 dBm
Glen Head, NY 100.0% 100.0% 10.3% 7.7% -96 dBm 100.0% 100.0% 100.0% 53.8% -100 dBm 100.0% 100.0% 100.0% 97.4% -83 dBm
Glenwood Landing, NY 100.0% 100.0% 84.0% 44.0% -92 dBm 96.0% 96.0% 96.0% 40.0% -96 dBm 96.0% 96.0% 96.0% 72.0% -93 dBm
Great Neck, NY 100.0% 100.0% 91.4% 88.6% -84 dBm 100.0% 100.0% 100.0% 71.4% -100 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Great Neck Estates, NY 100.0% 100.0% 95.0% 60.0% -94 dBm 100.0% 100.0% 100.0% 60.0% -103 dBm 100.0% 100.0% 100.0% 80.0% -86 dBm
Great Neck Gardens, NY 100.0% 100.0% 100.0% 100.0% -90 dBm 100.0% 100.0% 100.0% 75.0% -103 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Great Neck Plaza, NY 100.0% 100.0% 100.0% 100.0% -76 dBm 100.0% 100.0% 100.0% 71.4% -93 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Greenvale, NY 100.0% 100.0% 83.3% 83.3% -87 dBm 100.0% 100.0% 100.0% 83.3% -100 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Harbor Hills, NY 100.0% 100.0% 100.0% 50.0% -100 dBm 100.0% 100.0% 100.0% 50.0% -110 dBm 100.0% 100.0% 100.0% 50.0% -100 dBm
Harbor Isle, NY 100.0% 100.0% 100.0% 100.0% -90 dBm 100.0% 100.0% 100.0% 66.7% -100 dBm 100.0% 100.0% 100.0% 100.0% -83 dBm
Hempstead, NY 100.0% 100.0% 100.0% 94.6% -85 dBm 100.0% 98.9% 100.0% 64.5% -96 dBm 100.0% 100.0% 100.0% 100.0% -70 dBm
Herricks, NY 100.0% 100.0% 100.0% 100.0% -77 dBm 100.0% 100.0% 100.0% 50.0% -98 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Hewlett, NY 100.0% 100.0% 95.5% 63.6% -89 dBm 95.5% 95.5% 95.5% 63.6% -97 dBm 100.0% 100.0% 100.0% 100.0% -75 dBm
Hewlett Bay Park, NY 100.0% 100.0% 100.0% 100.0% -93 dBm 100.0% 100.0% 100.0% 33.3% -107 dBm 100.0% 100.0% 100.0% 100.0% -85 dBm
Hewlett Harbor, NY 100.0% 100.0% 94.7% 68.4% -96 dBm 89.5% 89.5% 89.5% 21.1% -107 dBm 100.0% 100.0% 100.0% 100.0% -89 dBm
Hewlett Neck, NY 100.0% 100.0% 100.0% 75.0% -98 dBm 100.0% 100.0% 100.0% 0.0% -110 dBm 100.0% 100.0% 100.0% 100.0% -90 dBm
Hicksville, NY 100.0% 100.0% 100.0% 92.8% -87 dBm 100.0% 100.0% 98.8% 57.8% -102 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Inwood, NY 100.0% 100.0% 100.0% 94.7% -94 dBm 100.0% 100.0% 97.4% 71.1% -98 dBm 100.0% 100.0% 100.0% 100.0% -77 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 Nassau County, NY 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.