Grant County, Kansas
USDA's soil survey flags shrink-swell clay on 2% of Grant County's mapped land and a shallow water table under basements on 2%, both below the national shares of 15% and 29%. None 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. 59% of homes were built before 1980, against 50% nationally; the median home dates from 1974.
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 Grant County
| Expansive clay (limits slab homes) | 1.7% |
| High water table (limits basements) | 2.2% |
| Septic fields very limited | 57.6% |
| Clay swell (LEP, by area) | 3.8% |
| High-swell land (LEP 6%+) | 19.8% |
| Mapped soil | 368,153 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Ulysses | 32% | n/a |
| Richfield | 18% | 12% |
| Manter | 9% | n/a |
| Satanta | 6% | n/a |
| Otero | 5% | n/a |
| Atchison | 4% | n/a |
How we count · survey areas KS067 (2025-08-27)
What the numbers mean here
Rain over the 12 months to August 2026: 16.19 in, 1.89 in below the 1991-2020 average year of 18.08 in.
USDA rates 58% of the land very limited for septic absorption fields.
With shrink-swell clay on 2% and a shallow water table on 2% of the land, the soil survey points to neither problem across most of Grant County; conditions still vary lot by lot.
Drought
0% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 28 of the last 52 weeks; the most was 100% of its area, in 28 weeks, most recently on the September 29, 2026 map.
| Category, October 13, 2026 | Share of county |
|---|---|
| D0 abnormally dry or worse | 100% |
| D1 moderate drought or worse | 0% |
| 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 Grant County since 2016.
Rain
| Average year, 1991-2020 | 18.08 in |
| 12 months to August 2026 | 16.19 in (-1.89) |
| 2025 | 22.20 in (+4.12) |
| Wettest year since 1895 | 1941: 28.03 in |
| Driest year since 1895 | 1956: 6.31 in |
| Days with 1 inch or more, normal at ULYSSES 3NE (4 mi away) | 4 |
Homes
| Housing units | 2,933 |
| Median year built | 1974 |
| Built before 1980 | 59% |
| Built 2000 or later | 13% |
| Owner-occupied | 77% |
| Median value, owner-occupied | $110,300 |
| Single-family detached | 69% |
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 |
|---|---|---|---|
| Haskell County, KS | 23 mi | 9% | 3% |
| Stevens County, KS | 24 mi | 6% | 1% |
| Stanton County, KS | 27 mi | 2% | 2% |
| Kearny County, KS | 31 mi | 3% | 7% |
| Seward County, KS | 36 mi | 9% | 3% |
| Morton County, KS | 38 mi | 2% | 1% |
| Hamilton County, KS | 41 mi | 2% | 4% |
| Finney County, KS | 46 mi | 14% | 5% |
Sources: USDA SSURGO (August 27, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status