Daggett County, Utah
USDA's soil survey flags shrink-swell clay on 2% of Daggett County's mapped land and a shallow water table under basements on 1%, both below the national shares of 15% and 29%. The soil survey maps 46% of the county's land area; these shares describe the mapped part.
100% of the county is in drought on the October 13, 2026 Drought Monitor map. FEMA's flood data list no flood losses here since 2016. 52% of homes were built before 1980, against 50% nationally; the median home dates from 1979.
Data as of October 13, 2026 · sources
expansive clay: shrink-swell limits slab homes
high water table: limits basements
in drought, October 13, 2026
of homes built before 1980
Soil under Daggett County
| Expansive clay (limits slab homes) | 2.4% |
| High water table (limits basements) | 1.3% |
| Septic fields very limited | 60.8% |
| Clay swell (LEP, by area) | 2.2% |
| High-swell land (LEP 6%+) | 2.4% |
| Mapped soil | 204,844 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Poposhia | 5% | n/a |
| Bigtom | 5% | n/a |
| Hoymount | 4% | n/a |
| Flynncove | 4% | n/a |
| Cortyzack | 3% | n/a |
| Luhon | 3% | n/a |
How we count · survey areas UT047 (2025-09-05), WY638 (2025-09-04)
What the numbers mean here
Rain over the 12 months to August 2026: 13.50 in, 1.08 in below the 1991-2020 average year of 14.58 in.
USDA rates 61% of the land very limited for septic absorption fields.
With shrink-swell clay on 2% and a shallow water table on 1% of the land, the soil survey points to neither problem across most of Daggett County; conditions still vary lot by lot.
Drought
100% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 52 of the last 52 weeks; the most was 100% of its area, in 52 weeks, most recently on the October 13, 2026 map.
| Category, October 13, 2026 | Share of county |
|---|---|
| D0 abnormally dry or worse | 100% |
| D1 moderate drought or worse | 100% |
| D2 severe or worse | 0% |
| D3 extreme or worse | 0% |
| D4 exceptional | 0% |
Flood losses since 2016
FEMA's flood data list no flood losses in Daggett County since 2016.
Rain
| Average year, 1991-2020 | 14.58 in |
| 12 months to August 2026 | 13.50 in (-1.08) |
| 2025 | 11.47 in (-3.11) |
| Wettest year since 1895 | 1941: 22.37 in |
| Driest year since 1895 | 2012: 8.00 in |
| Days with 1 inch or more, normal at FLAMING GORGE (6 mi away) | 0.7 |
Homes
| Housing units | 1,163 |
| Median year built | 1979 |
| Built before 1980 | 52% |
| Built 2000 or later | 27% |
| Owner-occupied | 82% |
| Median value, owner-occupied | $282,300 |
| Single-family detached | 61% |
What repairs cost
Published ranges from cost guides, not quotes. More sources, and where they disagree.
Nearby counties
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Uintah County, UT | 53 mi | 3% | 3% |
| Uinta County, WY | 61 mi | n/a | n/a |
| Sweetwater County, WY | 62 mi | 3% | under 1% |
| Duchesne County, UT | 64 mi | 1% | 3% |
| Moffat County, CO | 70 mi | 10% | 1% |
| Summit County, UT | 76 mi | 9% | 6% |
| Rio Blanco County, CO | 93 mi | 8% | 1% |
| Wasatch County, UT | 95 mi | 11% | 5% |
Sources: USDA SSURGO (September 5, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status