Caldwell County, Texas ZIP Codes
- ZIP records
7 - Cities represented
7 - Sum of listed ZIP population estimates
48,637
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 | 78644 | Lockhart | 22,348 |
| 2 | 78616 | Dale | 10,683 |
| 3 | 78648 | Luling | 7,863 |
| 4 | 78655 | Martindale | 3,730 |
| 5 | 78656 | Maxwell | 2,847 |
| 6 | 78661 | Prairie Lea | 835 |
| 7 | 78622 | Fentress | 331 |
Cities in Caldwell 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.