Fort Collins, CO 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 Fort Collins, CO zip codes, this guide compares the top-performing networks and the cheapest plans that use them.

Coverage rankings for Fort Collins, CO

T-Mobile currently ranks first for coverage in this area, with a coverage score of 96.4. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.


RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile96.499.5%99.5%97.5%84.5% -84 dBm
2Verizon95.499.0%98.4%93.8%82.0% -85 dBm
3AT&T88.699.8%99.8%98.1%67.7% -105 dBm

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


Cell phone coverage map for Fort Collins, CO

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 Fort Collins, CO

#1

T-Mobile

Coverage Score 96.4
In Fort Collins, CO
Overall
99.5%
4G LTE
99.5%
5G
97.5%
Fast 5G
84.5%
Average Signal -84 dBm
Larimer County, CO covered 48.6%
#2

Verizon

Coverage Score 95.4
In Fort Collins, CO
Overall
99.0%
4G LTE
98.4%
5G
93.8%
Fast 5G
82.0%
Average Signal -85 dBm
Larimer County, CO covered 48.9%
#3

AT&T

Coverage Score 88.6
In Fort Collins, CO
Overall
99.8%
4G LTE
99.8%
5G
98.1%
Fast 5G
67.7%
Average Signal -105 dBm
Larimer County, CO covered 51.9%

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

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Coverage by ZIP code in Fort Collins, CO

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

ZIP CodeAT&TT-MobileVerizon
80512 24.0% 24.0% 12.8% 6.9% -118 dBm 26.1% 25.8% 21.8% 10.7% -97 dBm 18.1% 18.0% 4.9% 2.9% -102 dBm
80521 99.7% 99.7% 97.5% 76.5% -106 dBm 99.7% 99.7% 98.8% 90.1% -84 dBm 100.0% 100.0% 94.8% 78.7% -88 dBm
80524 99.7% 99.6% 78.9% 43.3% -112 dBm 94.0% 93.9% 87.6% 66.1% -90 dBm 99.2% 99.1% 90.9% 78.9% -88 dBm
80525 100.0% 100.0% 99.3% 66.9% -107 dBm 99.4% 99.4% 95.3% 75.6% -87 dBm 98.5% 97.4% 95.7% 87.5% -85 dBm
80526 98.6% 98.5% 87.4% 45.7% -111 dBm 90.4% 90.3% 80.8% 68.3% -88 dBm 98.6% 98.2% 77.0% 53.5% -93 dBm
80528 100.0% 100.0% 100.0% 77.2% -100 dBm 99.1% 99.1% 98.6% 90.4% -85 dBm 100.0% 100.0% 99.8% 97.9% -81 dBm
80547 100.0% 100.0% 100.0% 51.1% -106 dBm 96.2% 96.2% 88.5% 61.1% -91 dBm 100.0% 100.0% 100.0% 99.2% -81 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 Fort Collins, CO 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.