ZIP Code 78666 Housing Market
ZIP code 78666 is located in Caldwell County, Texas. Based on the FHFA House Price Index, the most recent annual HPI value is 303.5 (2000 = 100) , with a year-over-year change of -1.71% as of 2025.
📈 78666 HPI Trend
FHFA House Price Index for Five-Digit ZIP Codes (2000 = 100)
About This ZIP Code
ZIP code 78666 is one of the most active real estate sub-markets in Caldwell County, Texas. The FHFA House Price Index tracks cumulative price appreciation since 2000, providing a consistent measure of long-term value change in this specific ZIP area.
For full county-level context, see the Caldwell County Housing Market page, which includes ACS median home values, rent, owner-occupancy, employment, migration, and other economic indicators.
Other Active ZIPs in Caldwell County
| ZIP Code | HPI | YoY | Latest Year |
|---|---|---|---|
| 78640 | 276.4 | -4.88% | 2025 |
| 78644 | 336.9 | +0.05% | 2025 |
| 78610 | 327.8 | -3.57% | 2025 |
Data Source: FHFA House Price Index for Five-Digit ZIP Codes (All-Transactions Index, 2000 = 100). Data as of 2025. This product uses FHFA Data but is neither endorsed nor certified by FHFA.