Washington · HUD 2027 designations
Washington 2027 QCTs and DDAs by county
HUD's 2027 list puts 207 Washington census tracts, home to 874,530 people in the 2020 Census, in qualified census tracts, across 25 counties; King County (64), Snohomish County (27), Pierce County (23) have the most. 4 nonmetropolitan counties are difficult development areas. 38 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.
Qualified census tracts by county
| County | 2027 QCTs | Population in QCTs | Monitored LIHTC properties in QCTs |
|---|---|---|---|
| Adams County | 2 | 8,545 | 6 |
| Benton County | 3 | 13,352 | 7 |
| Chelan County | 1 | 3,778 | 0 |
| Clallam County | 2 | 6,162 | 6 |
| Clark County | 6 | 24,237 | 23 |
| Cowlitz County | 5 | 19,507 | 3 |
| Franklin County | 7 | 23,296 | 7 |
| Grant County | 3 | 13,129 | 16 |
| Grays Harbor County | 2 | 5,846 | 1 |
| Jefferson County | 1 | 3,306 | 4 |
| King County | 64 | 284,415 | 149 |
| Kitsap County | 2 | 9,078 | 7 |
| Kittitas County | 2 | 7,162 | 4 |
| Lewis County | 1 | 5,577 | 8 |
| Mason County | 1 | 4,049 | 1 |
| Okanogan County | 2 | 5,095 | 5 |
| Pierce County | 23 | 99,245 | 42 |
| Skagit County | 5 | 17,632 | 15 |
| Snohomish County | 27 | 127,241 | 63 |
| Spokane County | 20 | 75,350 | 39 |
| Thurston County | 4 | 19,852 | 9 |
| Walla Walla County | 1 | 3,540 | 1 |
| Whatcom County | 7 | 30,077 | 20 |
| Whitman County | 3 | 14,744 | 6 |
| Yakima County | 13 | 50,315 | 29 |
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: Island County, Kittitas County, Klickitat County, San Juan 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 area | 2027 Small Area DDA ZCTAs |
|---|---|
| Bremerton-Silverdale-Port Orchard, WA MSA | 98110, 98314, 98315, 98340, 98380, 98383 |
| Kennewick-Richland, WA MSA | 99353 |
| Longview-Kelso, WA MSA | 98616 |
| Olympia-Lacey-Tumwater, WA MSA | 98513, 98516 |
| Seattle-Bellevue, WA HUD Metro FMR Area | 98004, 98006, 98007, 98008, 98019, 98021, 98029, 98033, 98039, 98040, 98052, 98053, 98065, 98074, 98075, 98101, 98109, 98121, 98122 |
| Spokane, WA HUD Metro FMR Area | 99011, 99016, 99019 |
| Tacoma, WA HUD Metro FMR Area | 98327, 98332, 98360, 98375, 98391, 98422 |
Changes from the 2026 lists
Compared with HUD's 2026 lists, Washington gains 24 qualified census tracts and loses 21; 2 Small Area DDA ZIP codes are new and 29 dropped off; 1 nonmetro DDA county is new and 2 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.
| County | Tracts new for 2027 | Tracts dropped since 2026 |
|---|---|---|
| King County | 4.03, 85, 262, 275, 291.02, 303.08, 319.08 | 100.01, 290.03, 305.03, 309.02 |
| Pierce County | 615.01, 715.04, 717.07 | 602 |
| Clallam County | 10, 21 | 3 |
| Yakima County | 19.01, 20.05 | 9400.02 |
| Clark County | 417, 424 | |
| Skagit County | 9524.04, 9525 | |
| Snohomish County | 410, 535.11 | |
| Walla Walla County | 9205, 9208.02 | |
| Adams County | 9503.02 | |
| Asotin County | 9604 | |
| Benton County | 109.02 | |
| Chelan County | 9608.03 | |
| Ferry County | 9701 | |
| Franklin County | 202.01 | |
| Grant County | 111.02 | |
| Grays Harbor County | 10 | |
| Jefferson County | 9506.03 | |
| Kitsap County | 802 | |
| Kittitas County | 9754.03 | |
| Lewis County | 9703 | |
| Spokane County | 40.02 | |
| Stevens County | 9410 | |
| Whatcom County | 101.02 | |
| Whitman County | 5 |
Nonmetro DDA counties new for 2027: Kittitas County.
Nonmetro DDA counties dropped: Clallam County, Lewis County.
Small Area DDA ZIP codes new for 2027: 98513, 99016.
Small Area DDA ZIP codes dropped: 98005, 98027, 98034, 98038, 98072, 98077, 98092, 98103, 98107, 98115, 98199, 98232, 98296, 98333, 98335, 98354, 98374, 98390, 98407, 98424, 98446, 98558, 98580, 98601, 98629, 98642, 98685, 98831, 99005.
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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