Davis County, Utah
A shallow water table limits basements on 16% of Davis County's mapped land and the 6th highest of 28 Utah counties. Shrink-swell clay limits houses without basements on 4%.
100% of the county is in drought on the October 13, 2026 Drought Monitor map. FEMA's flood data list 21 flood losses here since 2016. 32% of homes were built before 1980, against 50% nationally; the median home dates from 1993.
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 Davis County
| Expansive clay (limits slab homes) | 3.9% |
| High water table (limits basements) | 15.9% |
| Septic fields very limited | 35.0% |
| Clay swell (LEP, by area) | 2.7% |
| High-swell land (LEP 6%+) | 4.2% |
| Mapped soil | 361,346 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Kilburn | 5% | n/a |
| Kidman | 4% | n/a |
| Ridd | 4% | n/a |
| Warm Springs | 2% | n/a |
| Pintailake | 2% | n/a |
| Parleys | 2% | n/a |
How we count · survey areas UT607 (2025-08-26), UT611 (2025-08-26), UT612 (2025-08-26)
What the numbers mean here
On 16% of Davis County's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
Rain over the 12 months to August 2026: 22.00 in, 3.57 in below the 1991-2020 average year of 25.57 in.
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 29 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 | 100% |
| D3 extreme or worse | 0.1% |
| D4 exceptional | 0% |
Flood losses since 2016
21 flood losses since 2016, $131,550 paid. The worst year was 2023, with 10.
| Year | Flood losses |
|---|---|
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 2 |
| 2019 | 0 |
| 2020 | 0 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 10 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 to date | 0 |
Rain
| Average year, 1991-2020 | 25.57 in |
| 12 months to August 2026 | 22.00 in (-3.57) |
| 2025 | 21.07 in (-4.50) |
| Wettest year since 1895 | 1983: 44.57 in |
| Driest year since 1895 | 1966: 16.06 in |
| Days with 1 inch or more, normal at WEBER BASIN PUMP PLT 3 (16 mi away) | 4.5 |
Homes
| Housing units | 120,879 |
| Median year built | 1993 |
| Built before 1980 | 32% |
| Built 2000 or later | 39% |
| Owner-occupied | 77% |
| Median value, owner-occupied | $505,500 |
| Single-family detached | 75% |
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 |
|---|---|---|---|
| Weber County, UT | 23 mi | 7% | 20% |
| Salt Lake County, UT | 30 mi | 13% | 17% |
| Morgan County, UT | 33 mi | 15% | 2% |
| Cache County, UT | 54 mi | 22% | 18% |
| Box Elder County, UT | 60 mi | 2% | 23% |
| Tooele County, UT | 62 mi | 0% | 36% |
| Rich County, UT | 64 mi | 1% | 7% |
| Summit County, UT | 65 mi | 9% | 6% |
Sources: USDA SSURGO (August 26, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status