The sales data on Trulia is compiled from public records that are available at county assessor, tax, and recorder offices. Trulia receives regular updates from its data sources, but there are certain "non-disclosure" states where sales information is not available for public review. In most states, the sales price for a transaction is recorded on the deed that is filed with the local jurisdiction. Non-disclosure states do not collect and/or do not disclose the sales amount. Idaho is one such non-disclosure state where sales information is not readily available to the public.