National Mortgage Database (NMDB®) Aggregate Statistics

The National Mortgage Database (NMDB®) is a nationally​​ representative five percent sample of residential mortgages in the United States. Publication ​of aggregate data from NMDB is a step toward implementing the statutory requirements of section 1324(c) of the Federal Housing Enterprises Financial Safety and Soundness Act of 1992, as amended by the Housing and Economic Recovery Act of 2008. The statute requires FHFA to conduct a monthly mortgage market survey to collect data on the characteristics of individual mortgages, both Enterprise and​ non-Enterprise, and to make the data a​vailable to the public while protecting the privacy of the borrowers.​

​Documentation

Data Dictionary and Technical Notes (03/28/2025)

How to Convert CSV to Excel Pivot Table (06/30/2023)

How to Import CSV Data into Tableau (09/29/2023)

Dashboards

The NMDB Aggregate Statistics Dashboards provide interactive data visualization tools for using the data published in the NMDB Aggregate Statistics. Users can interactively create, analyze, and export custom charts and data tables. The Dashboards currently include the Outstanding Residential Mortgage Statistics. FHFA plans to release additional NMDB dashboards in the future.

​Datasets

Notes:

1)     All CSV file headers are now standardized as described in the Data Dictionary and Technical Notes and all CSV files are zipped.

2)     Alternate wide format CSV files are available. The wide format may be more easily opened by MS Excel.

New Residential Mortgage Statistics

Outstanding Residential Mortgage Statistics

Residential Mortgage Performance Statistics

Contact
If you have any questions or comments about the data or documents, please email NMDBdata@fhfa.gov.

Page last updated: March 31, 2025