Zip Code 78734 — Austin, TX

ZIP Code 78734 is associated with Austin, TX, in Travis County. The listed population estimate is 22,145; estimated density is 451.5 people per square mile. Among records with population estimates, it ranks #29 of 48 in Travis County and #549 of 1,924 in TX.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (30.380790, -97.946760)

Data MetricLocal Statistic
Postal / Zip Code78734
Primary CityAustin
State / ProvinceTX
CountyTravis
Total Population22,145
Population Density451.5 people/sq mi
TimezoneAmerica/Chicago

How 78734 Compares

MetricZIP 78734Travis County recordsTX records
Population estimate22,1451,401,963 (sum)30,188,035 (sum)
Population Density451.5 /sq mi----
County population rank#29 of 48----
State population rank#549 of 1,924----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in TX

ZIP CodeCityDistancePopulation estimate
ZIP 78732Austin3.2 mi21,087
ZIP 78645Leander5.0 mi15,256
ZIP 78733Austin5.7 mi9,029
ZIP 78738Austin5.7 mi31,019
ZIP 78730Austin6.6 mi9,142

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 →