St. Bernard County, LA Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in St. Bernard County, LA

Coverage rankings for St. Bernard County, LA

AT&T currently ranks first for coverage in this area, with a coverage score of 87.6. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T87.693.6%93.6%89.5%73.1% -101 dBm
2T-Mobile85.489.7%89.7%87.2%62.3% -92 dBm
3Verizon57.060.9%54.8%47.4%31.2% -96 dBm

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

Cell phone coverage map for St. Bernard County, LA

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 St. Bernard County, LA

#1

AT&T

Coverage Score 87.6
In St. Bernard County, LA
Overall
93.6%
4G LTE
93.6%
5G
89.5%
Fast 5G
73.1%
Average Signal -101 dBm
#2

T-Mobile

Coverage Score 85.4
In St. Bernard County, LA
Overall
89.7%
4G LTE
89.7%
5G
87.2%
Fast 5G
62.3%
Average Signal -92 dBm
#3

Verizon

Coverage Score 57.0
In St. Bernard County, LA
Overall
60.9%
4G LTE
54.8%
5G
47.4%
Fast 5G
31.2%
Average Signal -96 dBm
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Coverage by city in St. Bernard County, LA

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

CityVerizonAT&TT-Mobile
Arabi, LA 100.0% 100.0% 100.0% 100.0% -78 dBm 100.0% 100.0% 100.0% 64.3% -97 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Chalmette, LA 100.0% 100.0% 100.0% 98.8% -76 dBm 100.0% 100.0% 99.4% 75.1% -97 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Delacroix, LA 100.0% 100.0% 80.0% 80.0% -100 dBm 100.0% 100.0% 100.0% 0.0% -120 dBm 100.0% 100.0% 100.0% 100.0% -90 dBm
Meraux, LA 100.0% 100.0% 100.0% 75.0% -89 dBm 100.0% 100.0% 100.0% 79.0% -105 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Poydras, LA 100.0% 100.0% 89.0% 63.7% -90 dBm 100.0% 100.0% 95.6% 57.1% -109 dBm 100.0% 100.0% 100.0% 100.0% -76 dBm
Saint Bernard, LA 96.8% 95.9% 92.2% 75.9% -91 dBm 99.8% 99.8% 99.2% 69.9% -109 dBm 99.6% 99.6% 97.6% 89.7% -88 dBm
Violet, LA 100.0% 100.0% 96.6% 65.2% -92 dBm 100.0% 100.0% 95.5% 53.9% -110 dBm 100.0% 100.0% 100.0% 97.8% -86 dBm
New Orleans, LA 100.0% 100.0% 97.7% 88.9% -86 dBm 98.7% 98.6% 96.9% 60.8% -102 dBm 100.0% 100.0% 99.6% 97.7% -80 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 St. Bernard County, LA 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.