Rooks County, Kansas
The most common soil here is Harney, on about 25% of the land: a silt loam, smooth, like flour. Uly and Holdrege come next.
About 99% of the land drains well.
USDA rates 71% of the land very limited for a standard septic drain field, and 23% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 7% of the land floods occasionally or more, and bedrock lies within 40 inches under 25% of it.
Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.
The soils you're most likely standing on
The biggest named soils in Rooks County, Kansas, each drawn five feet deep from its official USDA description, in its recorded colors.
Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.
The biggest mapped areas
The dominant drainage class is Well drained and the dominant hydrologic group is C (slow infiltration, moderate runoff). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Rooks County, Kansas. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Harney silt loam, 1 to 3 percent slopes | 76K | Well drained | C | Somewhat limited | Very limited |
| Uly silt loam, 3 to 6 percent slopes | 55K | Well drained | B | Not limited | Somewhat limited |
| Holdrege silt loam, 1 to 3 percent slopes, plains and breaks | 51K | Well drained | C | Not limited | Very limited |
| Heizer-Brownell complex, 5 to 30 percent slopes | 50K | Well drained | D | Very limited | Very limited |
| Harney-Mento complex, 3 to 7 percent slopes | 38K | Well drained | C | Somewhat limited | Very limited |
| Harney silt loam, 0 to 1 percent slopes | 36K | Well drained | C | Somewhat limited | Very limited |
| Wakeen silt loam, 3 to 7 percent slopes | 34K | Well drained | C | Somewhat limited | Very limited |
| Wakeen-Nibson complex, 5 to 20 percent slopes | 32K | Well drained | C | Somewhat limited | Very limited |
| Uly silt loam, 6 to 11 percent slopes | 26K | Well drained | B | Not limited | Somewhat limited |
| Roxbury silt loam, occasionally flooded | 24K | Well drained | B | Very limited | Very limited |
| Armo loam, 3 to 7 percent slopes | 15K | Well drained | B | Not limited | Somewhat limited |
| Munjor sandy loam, occasionally flooded | 14K | Well drained | A | Very limited | Very limited |
| Roxbury silt loam, rarely flooded | 13K | Well drained | B | Very limited | Somewhat limited |
| Penden loam, 3 to 7 percent slopes | 13K | Well drained | B | Not limited | Somewhat limited |
| Uly-Penden complex, 6 to 20 percent slopes | 13K | Well drained | B | Somewhat limited | Somewhat limited |
| Holdrege silt loam, 0 to 1 percent slopes, plains and breaks | 9K | Well drained | C | Not limited | Very limited |
| Wakeen-Harney silt loams, 1 to 3 percent slopes | 9K | Well drained | C | Somewhat limited | Very limited |
| Anselmo fine sandy loam, 3 to 7 percent slopes | 7K | Well drained | A | Not limited | Very limited |
| Campus-Anselmo complex, 5 to 15 percent slopes | 7K | Well drained | C | Very limited | Very limited |
| McCook silt loam, rarely flooded | 7K | Well drained | B | Very limited | Somewhat limited |
Soil Orders in This Area
The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.
What This Means
Building & Foundations
About 23% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 71% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.