Monterey County, CA Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Monterey County, CA

Coverage rankings for Monterey County, CA

T-Mobile currently ranks first for coverage in this area, with a coverage score of 52.1. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile52.146.8%45.9%43.4%32.1% -90 dBm
2Verizon49.563.7%63.6%23.2%15.8% -97 dBm
3AT&T49.156.4%56.2%45.8%26.1% -113 dBm

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

Cell phone coverage map for Monterey County, CA

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 Monterey County, CA

#1

T-Mobile

Coverage Score 52.1
In Monterey County, CA
Overall
46.8%
4G LTE
45.9%
5G
43.4%
Fast 5G
32.1%
Average Signal -90 dBm
#2

Verizon

Coverage Score 49.5
In Monterey County, CA
Overall
63.7%
4G LTE
63.6%
5G
23.2%
Fast 5G
15.8%
Average Signal -97 dBm
#3

AT&T

Coverage Score 49.1
In Monterey County, CA
Overall
56.4%
4G LTE
56.2%
5G
45.8%
Fast 5G
26.1%
Average Signal -113 dBm
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Coverage by city in Monterey County, CA

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

CityVerizonAT&TT-Mobile
Big Sur, CA 15.9% 15.9% 0.0% 0.0% -101 dBm 16.6% 16.3% 11.7% 4.1% -115 dBm 0.3% 0.3% 0.2% 0.1% -100 dBm
Boronda, CA 100.0% 100.0% 100.0% 100.0% -79 dBm 100.0% 100.0% 100.0% 60.0% -107 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Bradley, CA 100.0% 100.0% 0.0% 0.0% -70 dBm 100.0% 100.0% 100.0% 100.0% -100 dBm 100.0% 100.0% 100.0% 100.0% -70 dBm
Carmel, CA 100.0% 100.0% 30.4% 17.4% -87 dBm 100.0% 100.0% 91.3% 78.3% -116 dBm 91.3% 91.3% 17.4% 4.3% -95 dBm
Carmel Valley, CA 36.4% 35.9% 13.8% 8.8% -101 dBm 52.9% 52.3% 44.5% 16.2% -112 dBm 30.9% 30.5% 29.2% 20.2% -91 dBm
Carmel Valley Village, CA 97.9% 97.7% 45.6% 38.1% -96 dBm 97.2% 97.2% 77.3% 44.5% -110 dBm 94.0% 93.1% 91.5% 74.3% -87 dBm
Carmel By The Sea, CA 100.0% 100.0% 36.0% 24.0% -88 dBm 100.0% 100.0% 92.0% 76.0% -115 dBm 92.0% 92.0% 24.0% 8.0% -95 dBm
Castroville, CA 100.0% 100.0% 100.0% 100.0% -87 dBm 100.0% 100.0% 100.0% 87.0% -96 dBm 100.0% 100.0% 100.0% 100.0% -77 dBm
Chualar, CA 100.0% 100.0% 100.0% 100.0% -83 dBm 100.0% 100.0% 92.9% 92.9% -117 dBm 100.0% 100.0% 100.0% 100.0% -69 dBm
Del Monte Forest, CA 100.0% 100.0% 10.3% 8.6% -85 dBm 99.5% 99.5% 94.6% 76.8% -107 dBm 85.4% 85.4% 25.9% 14.1% -95 dBm
Del Rey Oaks, CA 100.0% 100.0% 83.3% 70.8% -91 dBm 100.0% 100.0% 100.0% 50.0% -101 dBm 100.0% 100.0% 100.0% 100.0% -82 dBm
Elkhorn, CA 100.0% 100.0% 87.5% 81.3% -85 dBm 96.4% 95.5% 92.0% 58.9% -103 dBm 100.0% 100.0% 99.1% 79.5% -91 dBm
Fort Hunter Liggett, CA 100.0% 100.0% 0.0% 0.0% -77 dBm 100.0% 100.0% 100.0% 90.6% -109 dBm 100.0% 100.0% 100.0% 100.0% -70 dBm
Gonzales, CA 100.0% 100.0% 100.0% 100.0% -75 dBm 100.0% 100.0% 100.0% 75.6% -94 dBm 100.0% 100.0% 100.0% 100.0% -66 dBm
Greenfield, CA 100.0% 100.0% 100.0% 95.3% -82 dBm 100.0% 100.0% 100.0% 98.4% -93 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Jolon, CA 64.4% 64.2% 21.0% 13.0% -98 dBm 59.4% 59.4% 46.7% 31.0% -114 dBm 52.6% 51.6% 48.9% 36.9% -91 dBm
King City, CA 100.0% 100.0% 100.0% 97.8% -77 dBm 100.0% 100.0% 100.0% 46.1% -101 dBm 100.0% 100.0% 100.0% 100.0% -71 dBm
Las Lomas, CA 100.0% 100.0% 79.2% 58.3% -89 dBm 100.0% 100.0% 100.0% 79.2% -108 dBm 100.0% 100.0% 95.8% 91.7% -80 dBm
Lockwood, CA 100.0% 100.0% 0.0% 0.0% -82 dBm 100.0% 100.0% 99.2% 69.2% -110 dBm 60.8% 60.8% 52.0% 25.2% -99 dBm
Marina, CA 100.0% 100.0% 90.0% 67.3% -87 dBm 99.5% 99.1% 97.2% 74.9% -108 dBm 99.5% 99.5% 99.5% 99.5% -77 dBm
Monterey, CA 100.0% 100.0% 80.8% 62.1% -90 dBm 100.0% 98.5% 99.0% 71.2% -106 dBm 99.5% 99.5% 84.8% 62.6% -89 dBm
Moss Landing, CA 100.0% 100.0% 100.0% 100.0% -76 dBm 100.0% 100.0% 100.0% 100.0% -93 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Pacific Grove, CA 100.0% 100.0% 54.3% 41.4% -88 dBm 100.0% 100.0% 100.0% 88.6% -103 dBm 100.0% 100.0% 51.4% 27.1% -90 dBm
Pajaro, CA 100.0% 100.0% 100.0% 100.0% -72 dBm 100.0% 100.0% 100.0% 95.2% -103 dBm 100.0% 100.0% 100.0% 100.0% -90 dBm
Pebble Beach, CA 59.2% 59.2% 43.7% 35.3% -91 dBm 76.5% 76.2% 70.3% 47.6% -108 dBm 51.5% 51.5% 48.1% 39.9% -86 dBm
Pine Canyon, CA 100.0% 97.4% 59.2% 23.7% -99 dBm 98.7% 98.7% 93.4% 76.3% -103 dBm 100.0% 100.0% 100.0% 84.2% -91 dBm
Prunedale, CA 96.1% 96.1% 69.5% 54.0% -92 dBm 91.0% 90.9% 84.0% 37.9% -107 dBm 87.3% 87.1% 81.9% 65.1% -89 dBm
Salinas, CA 100.0% 100.0% 97.4% 91.8% -83 dBm 99.8% 99.8% 99.3% 66.9% -101 dBm 100.0% 100.0% 100.0% 100.0% -78 dBm
San Ardo, CA 100.0% 100.0% 100.0% 100.0% -73 dBm 100.0% 100.0% 100.0% 63.6% -110 dBm 100.0% 100.0% 100.0% 100.0% -66 dBm
San Lucas, CA 100.0% 100.0% 0.0% 0.0% -74 dBm 100.0% 100.0% 100.0% 87.5% -119 dBm 100.0% 100.0% 100.0% 100.0% -70 dBm
Sand City, CA 100.0% 100.0% 100.0% 83.3% -91 dBm 91.7% 91.7% 91.7% 50.0% -110 dBm 91.7% 91.7% 91.7% 91.7% -84 dBm
Seaside, CA 100.0% 100.0% 79.7% 63.8% -91 dBm 99.0% 97.6% 98.1% 42.5% -105 dBm 100.0% 100.0% 100.0% 98.1% -81 dBm
Soledad, CA 100.0% 100.0% 98.1% 93.3% -88 dBm 100.0% 100.0% 100.0% 96.2% -100 dBm 100.0% 100.0% 100.0% 92.4% -79 dBm
Spreckels, CA 100.0% 100.0% 100.0% 50.0% -100 dBm 100.0% 100.0% 100.0% 0.0% -100 dBm 100.0% 100.0% 100.0% 100.0% -80 dBm
Aromas, CA 100.0% 100.0% 67.6% 57.7% -91 dBm 100.0% 100.0% 99.1% 60.4% -106 dBm 100.0% 99.1% 100.0% 76.6% -88 dBm
Pajaro Dunes, CA 100.0% 100.0% 91.8% 70.5% -94 dBm 100.0% 98.4% 96.7% 11.5% -116 dBm 100.0% 100.0% 98.4% 72.1% -94 dBm
Watsonville, CA 100.0% 100.0% 98.7% 89.0% -84 dBm 99.4% 99.4% 99.4% 87.1% -99 dBm 98.7% 98.7% 96.1% 69.7% -89 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 Monterey County, CA 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.