Home > TX > Cameron County > Los Fresnos > Zip 78566

Zip Code 78566 — Los Fresnos, TX

78566 is a ZIP Code associated with Los Fresnos, TX, located within Cameron. The postal region supports an estimated population of 25,110 residents across Data Pending housing units, with a population density of 69.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (26.135430, -97.421840)

Data MetricLocal Statistic
Postal / Zip Code78566
Primary CityLos Fresnos
State / ProvinceTX
CountyCameron
Total Population25,110
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density69.8 people/sq mi
TimezoneAmerica/Chicago

How 78566 Compares

MetricZIP 78566Cameron CountyTX State Average
Population25,110425,68430,188,035
Median IncomeData PendingN/AN/A
Population Density69.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 78578Port Isabel9.0 mi10,016N/A
Zip 78526Brownsville9.8 mi60,012N/A
Zip 78583Rio Hondo10.5 mi5,236N/A
Zip 78575Olmito10.7 mi4,575N/A
Zip 78586San Benito14.0 mi50,964N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →