Cedar County, Missouri
A shallow water table limits basements on 49% of Cedar County's mapped land, a higher share than 65% of US counties. Shrink-swell clay limits houses without basements on 11%.
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. 50% of homes were built before 1980, against 50% nationally; the median home dates from 1980.
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 Cedar County
| Expansive clay (limits slab homes) | 11.2% |
| High water table (limits basements) | 48.9% |
| Septic fields very limited | 91.9% |
| Clay swell (LEP, by area) | 4.0% |
| High-swell land (LEP 6%+) | 11.5% |
| Mapped soil | 319,117 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Cliquot | 20% | n/a |
| Goss | 11% | 0% |
| Sylvania | 6% | n/a |
| Barden | 6% | n/a |
| Bona | 5% | n/a |
| Sonsac | 4% | n/a |
How we count · survey areas MO039 (2025-09-02)
What the numbers mean here
On 49% of Cedar 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: 43.09 in, 1.84 in below the 1991-2020 average year of 44.93 in.
USDA rates 92% of the land very limited for septic absorption fields.
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 28 of the last 52 weeks; the most was 100% of its area, in 24 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% |
| D4 exceptional | 0% |
Flood losses since 2016
FEMA's flood data list no flood losses in Cedar County since 2016.
Rain
| Average year, 1991-2020 | 44.93 in |
| 12 months to August 2026 | 43.09 in (-1.84) |
| 2025 | 42.07 in (-2.86) |
| Wettest year since 1895 | 1927: 65.87 in |
| Driest year since 1895 | 1980: 23.20 in |
| Days with 1 inch or more, normal at STOCKTON DAM (5 mi away) | 13.2 |
Homes
| Housing units | 6,946 |
| Median year built | 1980 |
| Built before 1980 | 50% |
| Built 2000 or later | 27% |
| Owner-occupied | 74% |
| Median value, owner-occupied | $168,100 |
| Single-family detached | 77% |
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 |
|---|---|---|---|
| Dade County, MO | 21 mi | 17% | 45% |
| St. Clair County, MO | 22 mi | 23% | 33% |
| Polk County, MO | 26 mi | 24% | 59% |
| Vernon County, MO | 28 mi | 54% | 63% |
| Barton County, MO | 31 mi | 54% | 69% |
| Hickory County, MO | 32 mi | 51% | 26% |
| Greene County, MO | 43 mi | 9% | 49% |
| Lawrence County, MO | 43 mi | 8% | 68% |
Sources: USDA SSURGO (September 2, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status