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Zip Code 78643 — Llano, TX

78643 is a ZIP Code associated with Llano, TX, located within Llano. The postal region supports an estimated population of 7,088 residents across Data Pending housing units, with a population density of 3.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (30.681610, -98.712810)

Data MetricLocal Statistic
Postal / Zip Code78643
Primary CityLlano
State / ProvinceTX
CountyLlano
Total Population7,088
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density3.8 people/sq mi
TimezoneAmerica/Chicago

How 78643 Compares

MetricZIP 78643Llano CountyTX State Average
Population7,08826,21130,188,035
Median IncomeData PendingN/AN/A
Population Density3.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 76831Castell15.1 miN/AN/A
Zip 78639Kingsland15.4 mi8,719N/A
Zip 78675Willow City15.4 mi102N/A
Zip 76885Valley Spring15.8 mi142N/A
Zip 78609Buchanan Dam16.4 mi1,983N/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 →