HomeSoil seriesMenfro
Menfro soil series
Menfro soils cover 1,237,657 mapped acres, mostly in Missouri, Illinois and Kentucky. USDA rates shrink-swell a limit for houses without basements on 4% of that land, and a shallow water table a limit for basements on 0%.
It is the leading soil series by area in 9 of the counties and cities on this site, including Cape Girardeau County, MO; Perry County, MO; Union County, IL.
SSURGO survey versions to August 5, 2026 · series description revised 2004-08
of its land: shrink-swell limits houses without basements
of its land: a shallow water table limits basements
median highest linear extensibility (6% and up is high)
median highest clay content in the top 150 cm
USDA's description
The Menfro series consists of very deep, well drained, moderately permeable soils formed in thick loess deposits on upland ridgetops, backslopes and benches adjacent to the Missouri and Mississippi Rivers and their major tributaries. Slopes range from 2 to 60 percent. Mean annual temperature is 56 degrees F, and mean annual precipitation is 36 inches.
Source: USDA NRCS series description (OSD) for Menfro, revised 2004-08. Read it.
Engineering properties
| Mapped area (SSURGO) | 1,237,657 acres |
| Shrink-swell limits houses without basements | 3.9% |
| Shallow water table limits basements | 0.0% |
| Very limited for septic absorption fields | 63.1% |
| Most common drainage class | Well drained |
| Most common hydrologic soil group | C |
| Taxonomic class | Fine-silty, mixed, superactive, mesic Typic Hapludalfs |
| Type location | Boone County, Missouri. About 11/2 miles southeast of Wilton |
Where Menfro is mapped
| State | Mapped acres |
|---|---|
| Missouri | 769,380 |
| Illinois | 460,405 |
| Kentucky | 7,872 |
Places where Menfro leads
Counties and cities where Menfro covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Cape Girardeau County, MO | 46% |
| Perry County, MO | 39% |
| Union County, IL | 27% |
| Monroe County, IL | 18% |
| Jackson County, IL | 17% |
| Pike County, IL | 16% |
| Randolph County, IL | 14% |
| St. Clair County, IL | 10% |
| St. Charles County, MO | 7% |
Other places where Menfro is a main soil
Counties and cities where Menfro is among the six soil series covering the most mapped land, but not the first. Share of the place's mapped land.
Counties
- Pulaski County, IL 17%
- St. Louis County, MO 13%
- Marion County, MO 12%
- Ste. Genevieve County, MO 11%
- Lincoln County, MO 9%
- Cooper County, MO 9%
- Pike County, MO 9%
- Calhoun County, IL 8%
- Howard County, MO 8%
- Madison County, IL 7%
- Franklin County, MO 7%
- Alexander County, IL 7%
- Ralls County, MO 6%
- Boone County, MO 6%
- Osage County, MO 6%
- Warren County, MO 5%
- Gasconade County, MO 3%
- St. Louis city, MO 3%
Sources
Shares and properties: USDA NRCS SSURGO via Soil Data Access, weighted by each component's share of its map units. Description: the USDA NRCS series description. How we count.