Qualified Census Tract Table Generator
This page allows you to generate Low-Income Housing Tax Credit (LIHTC) Qualified Census Tract (QCT) tables for individual counties, individual metropolitan areas, nonmetropolitan parts of individual States, all counties in a single State, the complete table for all metropolitan areas, and the complete table for all nonmetropolitan parts of States. Simply click the appropriate button below.
Effective date: The effective date of the 2021 QCTs and DDAs is January 1,
The 2021 QCTs are based on MSA definitions published in OMB Bulletin No. 15-01 on July 15, 2015 and data from the 2010 Decennial Census and three sets of 5-year tabulations of the American Community Survey (2012 to 2016; 2013 to 2017; and 2014-2018). The Census Tract boundaries are according to the 2010 Decennial Census. See the latest Designation Notice for complete information.
Difficult Development Area Tables
Effective date: The effective date of the 2021 QCTs and DDAs is January 1, 2021.
Information on Small Difficult Development Areas (SDDAs):
While the geographic extent of ZCTAs is very similar to current 5-digit ZIP codes, and the vast majority of ZIP Code areas remain fixed over time, the U.S. Postal Service (USPS) may alter specific ZIP code geography at any time after HUD designates SDDAs. The data from which SAFMRs and SDDA designations are derived, however, does not immediately shift with the USPS definition of ZIP Codes, but remains defined by the ZCTAs as established by the Census Bureau. Therefore, for purposes of determining 2020 and 2021 SDDA status, users should refer to the DDA (ZCTA) address locator athttp://www.huduser.gov/portal/sadda/sadda_qct.html rather than the USPS-assigned 5-digit ZIP Code of the project.
ZIP Code-based Metropolitan DDAs (Small DDAs)
County-Based DDA Tables
To view the location of the 2019 and 2020 QCTs and SDDAs, visit the HUD User GIS Service -- Low-Income Housing Tax Credit Qualified Census Tract (QCT) and Small Difficult Development Area (SDDA) Locator.
Complete QCT and DDA dataset is available at: Qualified Census Tracts and Difficult Development Areas