Marshallville, NJ Cell Phone Coverage Map & Network Rankings (2026)

Don’t overpay for a network that struggles where you actually use your phone.

Using FCC mobile coverage data across Marshallville, NJ zip codes, this guide compares the top-performing networks and the cheapest plans that use them.



Cell phone coverage map for Marshallville, NJ

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, © OpenMapTiles. Basemap by OpenFreeMap. Rendered with MapLibre. FCC BDC mobile coverage processed by CompareWirelessCarriers.

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Cell phone coverage rankings by network in Marshallville, NJ

#1

T-Mobile

Coverage Score 88.1
In Marshallville, NJ
Overall
93.9%
4G LTE
93.9% avg. -96 dBm 4G LTE signal where 4G LTE coverage exists: avg. -96 dBm
5G
90.9% avg. -90 dBm 5G signal where 5G coverage exists: avg. -90 dBm
Fast 5G
75.8% avg. -88 dBm Fast 5G signal where Fast 5G coverage exists: avg. -88 dBm
Cape May County, NJ covered 87.7%
#2

AT&T

Coverage Score 77.8
In Marshallville, NJ
Overall
100.0%
4G LTE
100.0% avg. -105 dBm 4G LTE signal where 4G LTE coverage exists: avg. -105 dBm
5G
97.0% avg. -113 dBm 5G signal where 5G coverage exists: avg. -113 dBm
Fast 5G
93.9% avg. -113 dBm Fast 5G signal where Fast 5G coverage exists: avg. -113 dBm
Cape May County, NJ covered 99.4%
#3

Verizon

Coverage Score 64.2
In Marshallville, NJ
Overall
100.0%
4G LTE
100.0% avg. -88 dBm 4G LTE signal where 4G LTE coverage exists: avg. -88 dBm
5G
21.2% avg. -93 dBm 5G signal where 5G coverage exists: avg. -93 dBm
Fast 5G
12.1% avg. -90 dBm Fast 5G signal where Fast 5G coverage exists: avg. -90 dBm
Cape May County, NJ covered 99.7%

County coverage is shown for surrounding-area context and uses land-area only coverage.

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Coverage by ZIP code in Marshallville, NJ

ZIP code areas can extend beyond city limits, so this table is best used for local comparison around the city.

ZIP CodeAT&TT-MobileVerizon
08270 98.7% 98.6% 62.5% 40.0% 69.2% 68.6% 64.7% 47.1% 99.4% 99.4% 26.4% 19.5%

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 2026. “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 Marshallville, NJ 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.

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