Carrierlytics City Coverage Guide

Port St. Lucie, FL 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 Port St. Lucie, FL ZIP codes, Carrierlytics compares the top-performing networks and the cheapest plans that use them.



Cell phone coverage map for Port St. Lucie, FL

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 Port St. Lucie, FL

#1

T-Mobile

Coverage Score 94.8
In Port St. Lucie, FL
Overall
96.2%
4G LTE
96.1% avg. -89 dBm 4G LTE signal where 4G LTE coverage exists: avg. -89 dBm
5G
96.0% avg. -84 dBm 5G signal where 5G coverage exists: avg. -84 dBm
Fast 5G
92.2% avg. -83 dBm Fast 5G signal where Fast 5G coverage exists: avg. -83 dBm
St. Lucie County, FL covered 88.7%
#2

Verizon

Coverage Score 91.3
In Port St. Lucie, FL
Overall
100.0%
4G LTE
100.0% avg. -82 dBm 4G LTE signal where 4G LTE coverage exists: avg. -82 dBm
5G
93.4% avg. -88 dBm 5G signal where 5G coverage exists: avg. -88 dBm
Fast 5G
73.7% avg. -86 dBm Fast 5G signal where Fast 5G coverage exists: avg. -86 dBm
St. Lucie County, FL covered 99.8%
#3

AT&T

Coverage Score 75.0
In Port St. Lucie, FL
Overall
99.5%
4G LTE
98.9% avg. -97 dBm 4G LTE signal where 4G LTE coverage exists: avg. -97 dBm
5G
96.4% avg. -102 dBm 5G signal where 5G coverage exists: avg. -102 dBm
Fast 5G
31.8% avg. -96 dBm Fast 5G signal where Fast 5G coverage exists: avg. -96 dBm
St. Lucie County, FL covered 98.2%

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

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Best phone plans for Port St. Lucie, FL

Best phone plans on T-Mobile's network for Port St. Lucie, FL

94.8 T-Mobile coverage score Ranked #1 in Port St. Lucie, FL
Best family plan
79.5 Value Score

T-Mobile Better Value

Fair Value

Price
$140.01/mo for 3 lines ($46.67/line)
Data
Unlimited
Hotspot
Unlimited
View plan
See all plans on T-Mobile Compare all phone plans

Coverage by ZIP code in Port St. Lucie, FL

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

ZIP Code AT&T T-Mobile Verizon
34945 99.3% 99.0% 94.5% 22.7% 97.1% 96.9% 96.2% 83.2% 99.9% 99.9% 73.1% 52.2%
34952 99.6% 99.6% 96.6% 39.1% 100.0% 100.0% 100.0% 95.5% 100.0% 100.0% 84.6% 57.5%
34953 99.8% 99.7% 99.7% 37.4% 100.0% 100.0% 100.0% 99.2% 100.0% 100.0% 97.5% 76.5%
34957 99.6% 99.6% 93.4% 41.9% 90.1% 90.1% 88.5% 83.3% 100.0% 100.0% 88.3% 63.4%
34981 100.0% 100.0% 99.7% 45.3% 100.0% 100.0% 100.0% 98.0% 100.0% 100.0% 90.6% 75.5%
34983 99.8% 99.8% 98.8% 27.7% 100.0% 100.0% 100.0% 97.1% 100.0% 100.0% 89.7% 63.0%
34984 99.6% 99.6% 99.6% 36.3% 100.0% 100.0% 100.0% 98.2% 100.0% 100.0% 89.0% 66.7%
34986 100.0% 100.0% 97.7% 31.6% 100.0% 100.0% 100.0% 98.8% 100.0% 100.0% 93.4% 72.5%
34987 97.9% 97.2% 90.7% 11.5% 74.0% 72.5% 72.1% 53.1% 100.0% 100.0% 73.3% 47.6%
34990 95.3% 94.9% 85.5% 31.1% 95.0% 93.5% 94.0% 78.8% 100.0% 100.0% 88.8% 56.9%

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 Port St. Lucie, FL 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.