Zip Code 78633 — Georgetown, TX
78633 is a ZIP Code associated with Georgetown, TX, located within Williamson. 78633 ranks #10 out of 19 ZIP codes in Williamson County by population (and #402 out of 1,990 in TX). The area supports an estimated population of 29,309 residents across Data Pending housing units, with a population density of 144.2 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (30.738030, -97.754650)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 78633 |
| Primary City | Georgetown |
| State / Province | TX |
| County | Williamson |
| Total Population | 29,309 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 144.2 people/sq mi |
| Timezone | America/Chicago |
How 78633 Compares
| Metric | ZIP 78633 | Williamson County | TX State Average |
|---|
| Population | 29,309 | 591,187 (Total) | 30,188,035 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 144.2 /sq mi | -- | -- |
| County Pop Rank | #10 of 19 | -- | -- |
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 →