Maryland · HUD 2027 designations

Maryland 2027 QCTs and DDAs by county

HUD's 2027 list puts 282 Maryland census tracts, home to 1,049,891 people in the 2020 Census, in qualified census tracts, across 18 counties; Baltimore city (111), Prince George's County (73), Baltimore County (37) have the most. 1 nonmetropolitan county is a difficult development area. 33 ZIP code areas (ZCTAs) are Small Area DDAs. A building in a QCT or DDA can take 130% of eligible basis. The lists apply to allocations and bond issues after December 31, 2026.

2822027 qualified census tracts
1,049,891people in them (2020 Census)
1nonmetro DDA counties
33Small Area DDA ZIP codes

Qualified census tracts by county

Click a column to sort. Each county opens its full tract list.
County2027 QCTsPopulation in QCTsMonitored LIHTC properties in QCTs
Allegany County513,3047
Anne Arundel County37,3711
Baltimore city111322,958125
Baltimore County37155,73515
Caroline County14,9943
Cecil County14,9562
Charles County210,5114
Dorchester County29,33812
Frederick County829,65510
Harford County314,4858
Kent County15,9836
Montgomery County2195,13214
Prince George's County73322,28232
Somerset County16,3455
Talbot County13,6900
Washington County724,2259
Wicomico County311,25116
Worcester County27,6765

Sources: HUD 2027 QCT data file (qct_data_2027.xlsx), checked tract by tract against HUD's QCT2027.csv; population from the 2020 Census columns in that file. Properties: HUD's LIHTC database (LIHTCPUB, revised May 28, 2026), monitored properties by 2020 tract.

Nonmetropolitan DDA counties

Every site in these counties is in a 2027 difficult development area: Caroline County.

Small Area DDA ZIP codes

In metro areas HUD designates DDAs by ZIP Code Tabulation Area. A ZCTA follows ZIP code boundaries closely but not exactly, so check a specific address with the lookup.

Metro area2027 Small Area DDA ZCTAs
Baltimore-Columbia-Towson, MD MSA20701, 20724, 20754, 20755, 20759, 20764, 20777, 21010, 21012, 21029, 21032, 21035, 21036, 21037, 21042, 21044, 21046, 21047, 21054, 21076, 21077, 21113, 21140, 21401, 21402, 21405, 21409
Calvert County, MD HUD Metro FMR Area20688
Hagerstown, MD HUD Metro FMR Area21758
Washington-Arlington-Alexandria, DC-VA-MD HUD Metro FMR Area20637, 20720, 20762, 20769

Changes from the 2026 lists

Compared with HUD's 2026 lists, Maryland gains 30 qualified census tracts and loses 19; 2 Small Area DDA ZIP codes are new and 20 dropped off. A site that dropped off keeps its status for an application filed before 2027 and allocated within 730 days. Every state's changes.

CountyTracts new for 2027Tracts dropped since 2026
Baltimore city601, 907, 1101, 1203, 1205, 2502.06, 2603.03, 2605.01, 2704.01, 2708.011510, 1901, 1903, 2602.02, 2604.04, 2801.01
Prince George's County8014.05, 8017.09, 8030.01, 8036.10, 8041.02, 80468018.07, 8027, 8029.01, 8044
Baltimore County4023.06, 4023.07, 4085.07, 4204.02, 4502, 4505.03, 4523, 49164207.02
Montgomery County7008.32, 7060.127007.27, 7007.31, 7007.32, 7008.20
Charles County8509.068502.02
Frederick County7651, 7675
Anne Arundel County7302.06
Harford County3013.02
Somerset County9306
Wicomico County102

Small Area DDA ZIP codes new for 2027: 21010, 21758.

Small Area DDA ZIP codes dropped: 20721, 20723, 20778, 20794, 21005, 21043, 21053, 21056, 21075, 21108, 21114, 21122, 21131, 21146, 21666, 21723, 21737, 21738, 21794, 21826.

Computed by us from HUD's 2026 and 2027 files; 2026 notice: FR Doc. 2025-19007.

Designations: HUD 2027 QCT and DDA designations, FR Doc. 2026-20390 (91 FR 63573, Oct. 6, 2026).

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