What are foundation conditions like in Guymon, Oklahoma?

Reviewed by Preston · Updated 2026-11-12

In short: Only about 2% of Guymon is mapped in high shrink-swell soil; 52% rates low ¹.

What does the soil survey show for Guymon?

Guymon covers about 8 square miles ² and had 12,965 people in the 2020 Census ².

Which soils matter most for houses in Guymon?

• Conlen, about 26% of the area ¹: Very deep, well drained, moderately permeable soils that formed in loamy, calcareous eolian sediments of Pleistocene age ³.
• Ulysses, about 18% of the area ¹: Very deep, well drained soils that formed in loess ⁴.
• Gruver, about 13% of the area ¹: Very deep, well drained, moderately slowly permeable soils that formed in calcareous eolian sediments of Pleistocene age ⁵.
• Potter, about 10% of the area ¹: Very deep, well drained, moderately slowly permeable soils that formed in calcareous, loamy alluvium from the Ogallala Formation of Miocene-Pliocene age ⁶.
• Veal, about 10% of the area ¹: Very deep, well drained, moderately permeable soils that formed in calcareous, slope alluvium and colluvium derived from the Ogallala Formation of Miocene-Pliocene age ⁷.

What does this mean for houses in Guymon?

Less clay, different problems. Sandy and loamy soils swell little, so movement more often comes from fill settlement, erosion and washouts or plumbing leaks.

Which soils cover Guymon?

Looking for a foundation company near Guymon?

Companies that serve Guymon can appear on the company map in the Homeowner Hub. Paid listings there are marked Sponsored; the library and the AI guide don't rank or recommend any of them.

Buying or selling a house in Guymon? Realtors who serve the area can be on the same map, also marked Sponsored, and for realtors covers the seller disclosure form, inspections and the sale timeline. Seeing cracks at home? Start with for homeowners.

How were these numbers measured?

We overlaid the city limits from the Census Bureau ² on the USDA soil survey's map units ¹ and added up the area of each soil. Where a map unit is a mix of soils, its area was split by the percentages the survey lists for its major soils, so shares leave out minor inclusions and do not add to 100%. Shrink-swell is rated by the linear extensibility of a soil's most expansive layer, the survey's measure of how much it changes length between wet and dry (6% or more is high). Water table, bedrock and flooding come from the survey's map-unit summaries: the shallowest water table in any month, the shallowest bedrock, and the most common flooding frequency. Bedrock here includes soft, weathered sandstone and shale that a pier can push through, so it is not the depth where piers stop. These are mapped averages, not a test of any one lot; fill, grading and the soil actually under a house can differ, which is why a site visit or soil boring still decides a repair.

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