ZIP Code 61231 Housing Market
ZIP code 61231 is located in Mercer County, Illinois. Based on the FHFA House Price Index, the most recent annual HPI value is 182.8 (2000 = 100) , with a year-over-year change of +6.10% as of 2025.
📈 61231 HPI Trend
FHFA House Price Index for Five-Digit ZIP Codes (2000 = 100)
About This ZIP Code
ZIP code 61231 is one of the most active real estate sub-markets in Mercer County, Illinois. 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 Mercer County Housing Market page, which includes ACS median home values, rent, owner-occupancy, employment, migration, and other economic indicators.
Other Active ZIPs in Mercer County
| ZIP Code | HPI | YoY | Latest Year |
|---|---|---|---|
| 61281 | 241.0 | +51.71% | 2024 |
| 61264 | 204.6 | -2.89% | 2025 |
| 61486 | 169.7 | — | 2024 |
| 61259 | 233.3 | — | 2023 |
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.