What are foundation and soil conditions in ZIP code 73108 (Oklahoma City)?

Reviewed by Preston · Updated 2026-11-12

In short: Only about 4% of ZIP code 73108 is mapped in high shrink-swell soil; 12% rates low ¹.

What does the soil survey show for 73108?

ZIP code 73108 covers about 8 square miles of land and had 14,451 people in the 2020 Census ²; its center falls in Oklahoma City.

Which soils matter most for houses in 73108?

• Dale, about 10% of the area ¹: Very deep, well drained soils that formed in material weathered from loamy alluvium ³.
• Yahola, about 10% of the area ¹: Very deep, well drained, moderately rapidly permeable soils formed in calcareous loamy alluvium of Permian and Pleistocene age ⁴.
• Norge, about 5% of the area ¹: Very deep, well drained, moderately slowly permeable upland soils that formed in loamy alluvium of Pleistocene age ⁵.
• Latrass, about 3% of the area ¹: Deep, well drained, very slowly permeable soils that are reconstructed from clayey materials over landfills ⁶.
• Watonga, about 2% of the area ¹: Very deep, moderately well drained, very slowly permeable soils that formed in calcareous loamy and clayey alluvium ⁷.
• Urban land, about 51%, is ground the survey maps as covered by buildings and pavement rather than classifying its soil ¹.
• Water, about 5%, is open water ¹.

What does this mean for houses in 73108?

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 73108?

Looking for a foundation company near ZIP code 73108?

Companies that serve ZIP code 73108 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 ZIP code 73108? 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 ZIP code tabulation area (the Census approximation of a ZIP code) 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.

Related

• Oklahoma City
• Oklahoma City metro
• ZIP code 73119
• ZIP code 73107
• ZIP code 73109
• ZIP code 73106
• Shrink-swell and the active zone