Hays County, Texas ZIP Codes
- ZIP records
7 - Cities represented
7 - Sum of listed ZIP population estimates
286,831
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 78666 | San Marcos | 88,583 |
| 2 | 78640 | Kyle | 77,531 |
| 3 | 78610 | Buda | 48,319 |
| 4 | 78737 | Austin | 27,023 |
| 5 | 78620 | Dripping Springs | 22,860 |
| 6 | 78676 | Wimberley | 15,822 |
| 7 | 78619 | Driftwood | 6,693 |
Cities in Hays County
ZIP Directory
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.