Zip Code 78645 — Leander, TX
78645 is a ZIP Code associated with Leander, TX, located within Travis. 78645 ranks #34 out of 48 ZIP codes in Travis County by population (and #682 out of 1,990 in TX). The area supports an estimated population of 15,256 residents across Data Pending housing units, with a population density of 181.3 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (30.450200, -97.969340)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 78645 |
| Primary City | Leander |
| State / Province | TX |
| County | Travis |
| Total Population | 15,256 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 181.3 people/sq mi |
| Timezone | America/Chicago |
How 78645 Compares
| Metric | ZIP 78645 | Travis County | TX State Average |
|---|
| Population | 15,256 | 1,401,963 (Total) | 30,188,035 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 181.3 /sq mi | -- | -- |
| County Pop Rank | #34 of 48 | -- | -- |
Nearby ZIP Codes
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 →