Social Explorer; Federal Housing Finance Agency House Price Index (HPI).
House Price Index Technical Documentation
4. How often is the HPI published?
A comprehensive report is published every three months, approximately two months after the end of the previous quarter. Beginning in March 2008, OFHEO (one of FHFA's predecessor agencies) began publishing monthly indexes for census divisions and the U.S. FHFA continues publishing and updating these indexes each month.