Home > TX > Caldwell County > Prairie Lea > Zip 78661

Zip Code 78661 — Prairie Lea, TX

78661 is a ZIP Code associated with Prairie Lea, TX, located within Caldwell. The postal region supports an estimated population of 835 residents across Data Pending housing units, with a population density of 78.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (29.729250, -97.742120)

Data MetricLocal Statistic
Postal / Zip Code78661
Primary CityPrairie Lea
State / ProvinceTX
CountyCaldwell
Total Population835
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density78.2 people/sq mi
TimezoneAmerica/Chicago

How 78661 Compares

MetricZIP 78661Caldwell CountyTX State Average
Population83548,63730,188,035
Median IncomeData PendingN/AN/A
Population Density78.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 78622Fentress3.8 mi331N/A
Zip 78638Kingsbury5.9 mi2,135N/A
Zip 78648Luling6.6 mi7,863N/A
Zip 78670Staples6.7 mi130N/A
Zip 78655Martindale8.6 mi3,730N/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 →