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2023 and 2024 Small DDAs and QCTs

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2023 and 2024 Small DDAs and QCTs header

The 2024 Qualified Census Tracts (QCTs) and Difficult Development Areas (DDAs) are effective January 1, 2024. The 2024 QCT designations use tract boundaries from the 2020 Decennial census. The 2024 metro DDAs use ZIP Code Tabulation Area (ZCTA) boundaries from the 2010 Decennial census. The designation methodology is explained in the Federal Register notice published September 21, 2023.

The 2023 Qualified Census Tracts (QCTs) and Difficult Development Areas (DDAs) are effective January 1, 2023. The 2023 designations use population and tract boundaries from the 2020 Decennial census. The designation methodology is explained in the Federal Register notice published October 24, 2022.

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For example: -77.062871 38.896757