Naugatuck Valley County, CT Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Naugatuck Valley County, CT

Coverage rankings for Naugatuck Valley County, CT

T-Mobile currently ranks first for coverage in this area, with a coverage score of 86.8. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile86.892.0%92.0%83.5%64.2% -91 dBm
2Verizon80.498.9%98.9%61.1%40.4% -93 dBm
3AT&T77.896.4%96.4%72.5%46.5% -112 dBm

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

Cell phone coverage map for Naugatuck Valley County, CT

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 Naugatuck Valley County, CT

#1

T-Mobile

Coverage Score 86.8
In Naugatuck Valley County, CT
Overall
92.0%
4G LTE
92.0%
5G
83.5%
Fast 5G
64.2%
Average Signal -91 dBm
#2

Verizon

Coverage Score 80.4
In Naugatuck Valley County, CT
Overall
98.9%
4G LTE
98.9%
5G
61.1%
Fast 5G
40.4%
Average Signal -93 dBm
#3

AT&T

Coverage Score 77.8
In Naugatuck Valley County, CT
Overall
96.4%
4G LTE
96.4%
5G
72.5%
Fast 5G
46.5%
Average Signal -112 dBm
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Coverage by city in Naugatuck Valley County, CT

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

CityVerizonAT&TT-Mobile
Ansonia, CT 100.0% 100.0% 65.5% 46.6% -91 dBm 100.0% 100.0% 88.5% 60.1% -110 dBm 98.6% 98.6% 95.3% 84.5% -83 dBm
Beacon Falls, CT 99.1% 99.1% 64.2% 41.0% -94 dBm 99.1% 99.1% 66.8% 53.7% -112 dBm 97.8% 97.4% 94.3% 83.4% -87 dBm
Bethlehem, CT 91.0% 91.0% 21.5% 11.0% -100 dBm 61.1% 61.1% 5.9% 2.0% -117 dBm 52.7% 52.7% 36.3% 17.6% -98 dBm
Bethlehem Village, CT 94.7% 94.7% 18.0% 9.0% -100 dBm 60.3% 60.3% 1.1% 0.0% -117 dBm 56.6% 56.6% 35.4% 16.9% -100 dBm
Bristol, CT 100.0% 100.0% 78.2% 55.7% -92 dBm 100.0% 100.0% 89.2% 61.7% -109 dBm 99.5% 99.5% 98.4% 86.2% -86 dBm
Cheshire, CT 100.0% 100.0% 85.7% 68.9% -89 dBm 99.2% 99.2% 84.8% 49.1% -110 dBm 98.6% 98.3% 93.8% 75.1% -90 dBm
Cheshire Village, CT 100.0% 100.0% 96.9% 82.7% -89 dBm 100.0% 100.0% 99.0% 51.0% -109 dBm 100.0% 100.0% 100.0% 84.7% -87 dBm
Derby, CT 99.2% 99.2% 61.7% 35.8% -92 dBm 98.3% 98.3% 90.0% 55.8% -113 dBm 97.5% 97.5% 89.2% 70.0% -90 dBm
Heritage Village, CT 100.0% 100.0% 49.2% 17.5% -97 dBm 98.4% 98.4% 61.9% 41.3% -114 dBm 95.2% 95.2% 77.8% 36.5% -99 dBm
Middlebury, CT 98.8% 98.8% 43.2% 18.5% -97 dBm 92.0% 92.0% 69.7% 34.0% -115 dBm 77.7% 77.7% 58.0% 32.6% -96 dBm
Naugatuck, CT 99.7% 99.7% 76.8% 56.7% -92 dBm 99.7% 99.7% 94.7% 55.4% -111 dBm 95.0% 94.7% 82.4% 61.0% -91 dBm
Oakville, CT 100.0% 100.0% 97.9% 88.7% -85 dBm 100.0% 100.0% 100.0% 59.8% -107 dBm 100.0% 100.0% 100.0% 91.8% -86 dBm
Oxford, CT 99.9% 99.9% 43.5% 19.2% -95 dBm 99.5% 99.5% 56.3% 37.6% -112 dBm 91.5% 91.5% 84.0% 59.2% -92 dBm
Plymouth, CT 99.4% 99.4% 68.7% 52.5% -92 dBm 94.4% 94.4% 60.3% 35.8% -115 dBm 93.3% 93.3% 64.2% 39.7% -94 dBm
Prospect, CT 100.0% 100.0% 80.3% 58.5% -90 dBm 100.0% 100.0% 85.0% 42.4% -110 dBm 98.8% 98.8% 92.4% 70.9% -90 dBm
Seymour, CT 98.0% 98.0% 58.7% 31.1% -95 dBm 98.8% 98.8% 84.6% 59.9% -113 dBm 95.6% 95.6% 92.7% 79.1% -89 dBm
Shelton, CT 99.3% 99.2% 43.0% 24.7% -92 dBm 99.3% 99.3% 86.9% 54.1% -111 dBm 98.1% 98.1% 95.7% 80.6% -89 dBm
Southbury, CT 97.8% 97.8% 48.8% 23.3% -97 dBm 97.6% 97.6% 64.9% 45.6% -113 dBm 87.6% 87.6% 76.6% 53.8% -94 dBm
Terryville, CT 100.0% 100.0% 95.3% 78.1% -88 dBm 100.0% 100.0% 96.9% 85.9% -113 dBm 100.0% 100.0% 100.0% 96.9% -88 dBm
Thomaston, CT 100.0% 100.0% 100.0% 93.1% -82 dBm 100.0% 100.0% 93.1% 51.7% -108 dBm 100.0% 100.0% 100.0% 96.6% -78 dBm
Waterbury, CT 100.0% 100.0% 95.2% 85.0% -85 dBm 100.0% 100.0% 97.3% 56.9% -104 dBm 99.7% 99.7% 97.3% 87.3% -83 dBm
Watertown, CT 100.0% 100.0% 80.7% 56.1% -89 dBm 100.0% 100.0% 89.5% 42.1% -109 dBm 100.0% 100.0% 100.0% 96.5% -84 dBm
Wolcott, CT 100.0% 100.0% 65.6% 39.3% -94 dBm 99.6% 99.6% 69.7% 45.1% -115 dBm 98.8% 98.8% 91.2% 66.8% -93 dBm
Woodbury, CT 97.7% 97.6% 46.2% 23.8% -97 dBm 94.8% 94.8% 59.7% 46.2% -114 dBm 92.6% 92.6% 85.6% 64.8% -91 dBm
Woodbury Center, CT 100.0% 100.0% 48.0% 12.0% -97 dBm 100.0% 100.0% 80.0% 68.0% -114 dBm 100.0% 100.0% 98.0% 82.0% -90 dBm
Daniels Farm, CT 100.0% 100.0% 35.9% 19.7% -91 dBm 100.0% 100.0% 91.5% 47.0% -111 dBm 100.0% 100.0% 100.0% 88.0% -87 dBm
East Village, CT 100.0% 100.0% 44.0% 27.7% -96 dBm 100.0% 100.0% 40.3% 23.9% -112 dBm 93.1% 93.1% 86.8% 69.2% -91 dBm
Meriden, CT 100.0% 100.0% 76.9% 58.9% -89 dBm 99.5% 99.5% 95.7% 63.5% -105 dBm 99.8% 99.8% 99.8% 92.5% -83 dBm
Orange, CT 100.0% 100.0% 48.0% 30.5% -92 dBm 100.0% 100.0% 93.8% 58.0% -108 dBm 98.8% 98.8% 92.8% 79.6% -88 dBm
Oronoque, CT 100.0% 100.0% 73.2% 50.0% -90 dBm 100.0% 100.0% 100.0% 73.2% -102 dBm 100.0% 100.0% 100.0% 85.7% -86 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 Naugatuck Valley County, CT 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.