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Census and HMDA Data Overview

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Chris Dorney edited this page Feb 3, 2026 · 6 revisions

HMDA Census/Demographic File Creation and Validation

OMB Geographic Delineations

Census Delineation Files

The files linked on the site below are the basis for the MSA/MD code to name mapping work. The MSA/MD code to name file is used by the Platform to generate the A&D reports UI. The .xls file that saves from this page has several rows that are deleted before loading it to platform.

FFIEC Census Flat File

  • The FFIEC Census Flat File is produced by annually the FRB on behalf of the FFIEC Note: the Census Flat File is indexed starting at 1

HMDA Ops Uses of Census Data

Methodology Used to Map Census to LAR data

  • Census geographic hierarchy
  • Census/OMB MSA/MD codes are mapped to HMDA LAR fields using a map of concatenated County FIPS codes and Census Tract codes.
  • For cases where Census Tract is reported as NA in the HMDA LAR data, the match is done only on County FIPS code.
  • For cases where neither County FIPS code nor Census Tract are reported, the LAR data are not mapped to Census data.

Please note that both County FIPS and Census Tract are strings of numerals that can have left padded zeros.

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