Carrierlytics County Coverage Guide

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

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

Using FCC mobile coverage data across cities and ZIP codes in Placer County, CA, Carrierlytics compares the top-performing networks and the cheapest plans that use them.

Placer County, CA

Cell phone coverage map for Placer 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 Carrierlytics.

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Cell phone coverage rankings by network in Placer County, CA

#1

T-Mobile

Coverage Score 60.6
In Placer County, CA
Overall
54.2%
4G LTE
54.1% avg. -93 dBm 4G LTE signal where 4G LTE coverage exists: avg. -93 dBm
5G
47.0% avg. -88 dBm 5G signal where 5G coverage exists: avg. -88 dBm
Fast 5G
37.2% avg. -85 dBm Fast 5G signal where Fast 5G coverage exists: avg. -85 dBm
#2

Verizon

Coverage Score 58.9
In Placer County, CA
Overall
64.5%
4G LTE
64.4% avg. -92 dBm 4G LTE signal where 4G LTE coverage exists: avg. -92 dBm
5G
34.7% avg. -90 dBm 5G signal where 5G coverage exists: avg. -90 dBm
Fast 5G
27.1% avg. -88 dBm Fast 5G signal where Fast 5G coverage exists: avg. -88 dBm
#3

AT&T

Coverage Score 45.2
In Placer County, CA
Overall
55.2%
4G LTE
54.9% avg. -107 dBm 4G LTE signal where 4G LTE coverage exists: avg. -107 dBm
5G
44.7% avg. -110 dBm 5G signal where 5G coverage exists: avg. -110 dBm
Fast 5G
23.9% avg. -106 dBm Fast 5G signal where Fast 5G coverage exists: avg. -106 dBm
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Coverage by city in Placer County, CA

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

City Verizon AT&T T-Mobile
Alta, CA 100.0% 100.0% 22.4% 17.2% 84.5% 82.8% 53.4% 27.6% 96.6% 96.6% 89.7% 56.9%
Applegate, CA 91.4% 90.9% 44.0% 23.9% 85.2% 85.2% 73.2% 46.9% 81.3% 81.3% 78.5% 68.9%
Auburn, CA 98.3% 98.3% 93.7% 76.4% 97.7% 97.7% 95.4% 74.7% 98.3% 98.3% 96.6% 83.9%
Carnelian Bay, CA 100.0% 100.0% 71.0% 45.2% 100.0% 100.0% 96.8% 61.3% 96.8% 96.8% 83.9% 61.3%
Cedar Flat, CA 100.0% 100.0% 14.8% 7.4% 100.0% 100.0% 100.0% 88.9% 96.3% 96.3% 88.9% 74.1%
Colfax, CA 100.0% 100.0% 97.1% 74.3% 100.0% 100.0% 97.1% 80.0% 100.0% 100.0% 100.0% 100.0%
Dollar Point, CA 100.0% 100.0% 73.7% 50.0% 100.0% 100.0% 100.0% 73.7% 100.0% 100.0% 100.0% 92.1%
Dutch Flat, CA 100.0% 100.0% 7.7% 7.7% 61.5% 53.8% 61.5% 46.2% 76.9% 76.9% 46.2% 7.7%
Emigrant Gap, CA 72.5% 72.3% 9.3% 4.4% 53.7% 53.7% 45.3% 26.2% 67.0% 67.0% 42.9% 28.6%
Foresthill, CA 73.3% 71.8% 26.3% 13.7% 57.6% 57.6% 34.0% 16.0% 62.2% 62.2% 53.4% 38.9%
Gold Run, CA 75.4% 75.0% 16.5% 9.2% 50.2% 49.6% 38.2% 15.4% 48.9% 48.9% 40.8% 29.7%
Granite Bay, CA 100.0% 100.0% 90.0% 75.0% 100.0% 99.8% 97.6% 76.6% 99.2% 99.2% 96.7% 83.9%
Homewood, CA 62.8% 62.8% 8.3% 1.6% 69.5% 67.6% 53.9% 22.9% 55.7% 55.5% 45.3% 34.8%
Kings Beach, CA 100.0% 100.0% 48.6% 36.1% 100.0% 100.0% 100.0% 63.9% 100.0% 100.0% 98.6% 98.6%
Lincoln, CA 100.0% 100.0% 96.9% 85.1% 97.6% 97.3% 93.3% 73.0% 98.8% 98.8% 98.3% 91.9%
Loomis, CA 100.0% 100.0% 97.6% 87.1% 100.0% 100.0% 97.6% 43.5% 99.4% 99.4% 97.1% 78.2%
Meadow Vista, CA 100.0% 100.0% 86.7% 52.3% 99.2% 99.2% 94.5% 63.3% 85.9% 85.9% 68.0% 31.3%
Newcastle, CA 100.0% 100.0% 98.2% 82.1% 98.2% 98.2% 98.2% 67.9% 100.0% 100.0% 100.0% 98.2%
Norden, CA 73.5% 73.5% 0.0% 0.0% 50.3% 50.3% 38.4% 9.6% 57.1% 55.1% 51.0% 34.4%
North Auburn, CA 96.8% 96.8% 91.4% 78.9% 97.8% 97.8% 92.4% 64.3% 96.2% 96.2% 93.0% 86.5%
Olympic Valley, CA 87.2% 87.1% 12.9% 6.7% 80.3% 80.1% 65.8% 24.6% 67.4% 67.4% 39.2% 28.7%
Penryn, CA 100.0% 100.0% 90.9% 72.7% 100.0% 100.0% 100.0% 77.3% 97.7% 97.7% 90.9% 72.7%
Rocklin, CA 100.0% 100.0% 96.0% 87.7% 99.2% 99.2% 94.5% 63.8% 100.0% 100.0% 100.0% 98.7%
Roseville, CA 100.0% 100.0% 99.9% 96.9% 99.0% 98.6% 96.2% 69.7% 100.0% 100.0% 100.0% 99.8%
Sheridan, CA 100.0% 100.0% 99.8% 89.8% 97.0% 96.4% 90.6% 29.9% 100.0% 100.0% 99.3% 92.1%
Sunnyside-Tahoe City, CA 98.7% 98.7% 35.4% 7.6% 97.5% 97.5% 86.1% 55.7% 84.8% 83.5% 51.9% 17.7%
Tahoe City, CA 91.5% 91.5% 23.2% 10.7% 89.6% 89.1% 78.2% 44.3% 74.8% 74.6% 53.5% 32.2%
Tahoe Vista, CA 100.0% 100.0% 40.3% 32.3% 100.0% 100.0% 100.0% 83.9% 100.0% 100.0% 100.0% 98.4%
Tahoma, CA 100.0% 100.0% 61.0% 16.9% 94.9% 94.9% 86.4% 66.1% 86.4% 86.4% 67.8% 39.0%
Weimar, CA 100.0% 100.0% 80.0% 60.0% 100.0% 100.0% 100.0% 80.0% 100.0% 100.0% 100.0% 80.0%
Antelope, CA 100.0% 100.0% 100.0% 90.1% 100.0% 99.4% 99.4% 54.9% 100.0% 100.0% 100.0% 100.0%
Citrus Heights, CA 100.0% 100.0% 98.5% 77.9% 100.0% 100.0% 99.7% 71.1% 100.0% 100.0% 100.0% 100.0%
Elverta, CA 100.0% 100.0% 98.6% 89.5% 99.5% 99.5% 98.1% 66.7% 100.0% 100.0% 100.0% 95.2%
Folsom, CA 100.0% 100.0% 95.9% 85.3% 100.0% 100.0% 99.4% 75.0% 99.8% 99.8% 99.7% 98.3%
Kingvale, CA 100.0% 100.0% 75.0% 66.7% 100.0% 100.0% 100.0% 95.8% 100.0% 100.0% 100.0% 95.8%
Orangevale, CA 100.0% 100.0% 90.8% 62.4% 100.0% 98.2% 99.6% 60.5% 100.0% 100.0% 100.0% 96.3%
Truckee, CA 99.9% 99.9% 62.8% 50.1% 98.2% 97.8% 85.0% 38.3% 99.7% 99.7% 99.0% 84.9%
Wheatland, CA 100.0% 100.0% 99.5% 77.6% 97.4% 96.4% 89.1% 31.3% 100.0% 100.0% 100.0% 88.5%

About The Coverage Data

Coverage and signal estimates are derived by Carrierlytics 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 Placer 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.