What are foundation conditions like in Anadarko, Oklahoma?

Reviewed by Preston · Updated 2026-11-12

In short: Only about 8% of Anadarko is mapped in high shrink-swell soil; 42% rates low ¹. Which of these a house sits on decides whether clay swell, water, rock or soft ground is the thing to watch.

What does the soil survey show for Anadarko?

Anadarko covers about 7 square miles ² and had 5,745 people in the 2020 Census ².

Which soils matter most for houses in Anadarko?

• Pond Creek, about 24% of the area ¹: Very deep, well drained soils that formed in calcareous loamy material high in silt and very fine sand which was derived from a combination of loess, alluvium, residuum from red beds ³.
• Reinach, about 18% of the area ¹: Very deep, well drained, moderately permeable soils that formed in material weathered from loamy alluvium mostly from red beds of Permian age ⁴.
• Binger, about 8% of the area ¹: Moderately deep, well drained, moderately permeable soils that formed in weakly cemented sandstone of Permian age ⁵.
• McLain, about 8% of the area ¹: Very deep, moderately well drained, slowly permeable soils that formed in material weathered from clayey and loamy alluvium of Pleistocene age ⁶.
• Noble, about 7% of the area ¹: Very deep, well drained, moderately rapidly permeable soils that formed in colluvium or alluvium from the Permian redbeds ⁷.

What does this mean for houses in Anadarko?

Flood-prone soils. Floodplain soils are layered stream deposits: softer, wetter and more variable than upland soils, and they flood. See soft soil consolidation and Quaternary alluvium and terraces.

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 Anadarko?

Looking for a foundation company near Anadarko?

Companies that serve Anadarko 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 Anadarko? 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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