The Affordability Index is a measurement of housing affordability compiled by the National Association of Realtors® (NAR) and other organizations. It compares median income levels to the income required to purchase a median-priced home, providing insights into regional and national housing affordability.
The FHFA House Price Index (HPI) is a home price index compiled by the Federal Housing Finance Agency, based on data from loans held by home mortgage GSEs. It provides values for each state and metropolitan area in the United States.
Median price is the house price that falls right in the middle of the total number of homes sold in a particular area, offering a better representation of the market compared to average prices.
