ZIP Code 21791 Housing Market
ZIP code 21791 is located in Carroll County, Maryland. Based on the FHFA House Price Index, the most recent annual HPI value is 254.4 (2000 = 100) , with a year-over-year change of +0.73% as of 2025.
📈 21791 HPI Trend
FHFA House Price Index for Five-Digit ZIP Codes (2000 = 100)
About This ZIP Code
ZIP code 21791 is one of the most active real estate sub-markets in Carroll County, Maryland. 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 Carroll County Housing Market page, which includes ACS median home values, rent, owner-occupancy, employment, migration, and other economic indicators.
Other Active ZIPs in Carroll County
| ZIP Code | HPI | YoY | Latest Year |
|---|---|---|---|
| 21757 | 272.5 | +10.82% | 2025 |
| 21797 | 262.9 | -1.95% | 2025 |
| 21776 | 255.3 | +7.62% | 2025 |
| 21048 | 263.5 | +2.03% | 2025 |
| 21158 | 237.4 | -2.29% | 2025 |
| 21771 | 273.0 | +2.58% | 2025 |
| 21157 | 255.4 | +0.74% | 2025 |
| 21784 | 279.0 | +3.11% | 2025 |
| 21787 | 235.8 | +0.45% | 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.