Coverage rankings for Tuolumne County, CA
Verizon currently ranks first for coverage in this area, with a coverage score of 39.8. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.
| Rank | Carrier | Score | Overall | 4G LTE | 5G | Fast 5G | Average Signal |
|---|---|---|---|---|---|---|---|
| 1 | Verizon | 39.8 | 48.9% | 48.7% | 17.6% | 11.9% | -100 dBm |
| 2 | T-Mobile | 34.8 | 27.9% | 27.8% | 24.0% | 16.7% | -92 dBm |
| 3 | AT&T | 25.4 | 27.8% | 27.7% | 19.1% | 8.8% | -115 dBm |
Scores include coverage area, network type, and average signal strength.
Cell phone coverage map for Tuolumne 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.
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 Tuolumne County, CA
Verizon
- Overall
- 48.9%
- 4G LTE
- 48.7%
- 5G
- 17.6%
- Fast 5G
- 11.9%
T-Mobile
- Overall
- 27.9%
- 4G LTE
- 27.8%
- 5G
- 24.0%
- Fast 5G
- 16.7%
AT&T
- Overall
- 27.8%
- 4G LTE
- 27.7%
- 5G
- 19.1%
- Fast 5G
- 8.8%
Coverage varies by neighborhood. Your carrier shouldn’t.
US Mobile lets you switch between all three major networks, so you can choose the one that works best where you actually use your phone.
Pricing, network access, switching terms, and home internet availability may vary.
Coverage by city in Tuolumne County, CA
Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.
| City | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Big Oak Flat, CA | 93.3% 93.0% 47.7% 33.0% -97 dBm | 81.6% 81.5% 49.9% 24.6% -115 dBm | 79.5% 79.5% 67.7% 47.6% -93 dBm |
| Cedar Ridge, CA | 85.0% 83.3% 56.7% 29.4% -101 dBm | 66.7% 66.1% 50.0% 23.3% -113 dBm | 80.0% 80.0% 77.8% 69.4% -85 dBm |
| Chinese Camp, CA | 100.0% 100.0% 100.0% 100.0% -94 dBm | 100.0% 100.0% 84.2% 78.9% -115 dBm | 94.7% 94.7% 89.5% 73.7% -94 dBm |
| Cold Springs, CA | 100.0% 100.0% 4.8% 2.4% -101 dBm | 90.5% 90.5% 83.3% 35.7% -106 dBm | 2.4% 2.4% 0.0% 0.0% -110 dBm |
| Columbia, CA | 100.0% 100.0% 80.4% 58.7% -96 dBm | 97.1% 96.4% 88.4% 77.5% -109 dBm | 97.1% 97.1% 86.2% 65.2% -90 dBm |
| East Sonora, CA | 100.0% 100.0% 98.1% 92.6% -93 dBm | 100.0% 100.0% 94.4% 88.9% -104 dBm | 98.1% 98.1% 90.7% 75.9% -90 dBm |
| Groveland, CA | 100.0% 100.0% 62.8% 52.9% -95 dBm | 93.7% 93.3% 74.4% 45.3% -109 dBm | 84.3% 84.3% 74.9% 59.6% -88 dBm |
| Jamestown, CA | 100.0% 100.0% 63.0% 45.2% -98 dBm | 97.3% 97.3% 38.4% 31.5% -109 dBm | 100.0% 100.0% 100.0% 94.5% -83 dBm |
| Long Barn, CA | 100.0% 100.0% 65.2% 47.8% -101 dBm | 89.9% 89.9% 69.6% 60.9% -110 dBm | 21.7% 21.7% 14.5% 5.8% -95 dBm |
| Mi Wuk Village, CA | 88.4% 88.4% 56.5% 42.0% -99 dBm | 76.8% 76.8% 50.7% 30.4% -112 dBm | 36.2% 36.2% 24.6% 11.6% -100 dBm |
| Mono Vista, CA | 100.0% 100.0% 80.6% 69.4% -93 dBm | 86.1% 86.1% 73.6% 8.3% -116 dBm | 100.0% 100.0% 100.0% 70.8% -88 dBm |
| Phoenix Lake, CA | 100.0% 100.0% 83.9% 71.0% -95 dBm | 96.5% 96.5% 90.2% 46.7% -110 dBm | 94.9% 94.9% 83.9% 63.1% -92 dBm |
| Pine Mountain Lake, CA | 81.5% 81.3% 53.3% 40.6% -97 dBm | 78.8% 78.8% 65.7% 42.7% -110 dBm | 72.2% 72.2% 64.3% 47.0% -91 dBm |
| Pinecrest, CA | 22.8% 22.8% 0.7% 0.0% -104 dBm | 8.4% 8.4% 4.1% 0.1% -120 dBm | 5.1% 4.9% 4.4% 2.7% -95 dBm |
| Sierra Village, CA | 100.0% 100.0% 81.0% 70.7% -91 dBm | 100.0% 100.0% 93.1% 63.8% -109 dBm | 51.7% 51.7% 37.9% 17.2% -97 dBm |
| Sonora, CA | 100.0% 100.0% 93.3% 80.0% -91 dBm | 100.0% 100.0% 62.7% 56.0% -106 dBm | 100.0% 100.0% 100.0% 96.0% -80 dBm |
| Soulsbyville, CA | 100.0% 100.0% 72.5% 59.4% -94 dBm | 76.8% 76.8% 62.3% 4.3% -114 dBm | 97.1% 97.1% 89.9% 82.6% -84 dBm |
| Strawberry, CA | 91.7% 91.7% 0.0% 0.0% -90 dBm | 33.3% 33.3% 33.3% 0.0% -118 dBm | N/A N/A N/A N/A N/A |
| Tuolumne, CA | 82.4% 82.1% 46.7% 31.9% -99 dBm | 56.0% 56.0% 34.6% 8.8% -117 dBm | 59.0% 59.0% 47.8% 31.9% -94 dBm |
| Tuolumne City, CA | 100.0% 100.0% 76.8% 67.9% -92 dBm | 92.9% 92.9% 60.7% 42.9% -112 dBm | 98.2% 98.2% 87.5% 58.9% -94 dBm |
| Tuttletown, CA | 100.0% 100.0% 47.9% 36.7% -97 dBm | 99.4% 99.4% 96.4% 64.5% -108 dBm | 100.0% 100.0% 97.0% 83.4% -85 dBm |
| Twain Harte, CA | 100.0% 100.0% 89.2% 78.3% -93 dBm | 98.8% 98.8% 96.4% 32.5% -107 dBm | 100.0% 100.0% 100.0% 92.8% -86 dBm |
| Greeley Hill, CA | 57.7% 57.7% 0.5% 0.2% -103 dBm | 86.2% 85.5% 73.7% 63.3% -110 dBm | 12.3% 12.3% 8.9% 4.2% -97 dBm |
| Lake Don Pedro, CA | 95.9% 95.9% 32.9% 18.5% -99 dBm | 87.3% 87.3% 15.6% 8.2% -110 dBm | 63.3% 63.3% 47.2% 29.3% -97 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 Tuolumne 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.