Klamath County, OR: the USDA septic-suitability picture

Very limited

USDA puts Klamath County, OR at "Very limited" for septic absorption fields, the dominant reading across 89.7% of the county's soil. That reading means a conventional system is a poor bet here - 89.7% of Klamath County lands in the strictest "very limited" bucket USDA uses. For scale: 5,949.897 square miles and 70,438 people call Klamath County home.

Before you rely on this for one lot

This is a countywide, area-weighted figure across every soil survey map unit in Klamath County, OR - never a reading for one specific parcel. The real answer for one lot is still a site-specific perc test, running about $750-$1,850 (typically near $1,300).

Budgeting for a system in Klamath County, OR

Klamath County's soil reading pushes the likely outcome toward an engineered system rather than a conventional one. Conventional systems run $3,000-$8,000 where they pass; where they don't, engineered alternatives (mound or aerobic treatment, whichever the health department requires) run $10,000-$40,000 - budget toward the higher figure until a perc test says otherwise.

Klamath County's rank among Oregon counties

Among the 3,058 rated counties on this site, Klamath County, OR ranks 1,300 most-constrained nationally, and 25 of 36 within Oregon.

Before you act on this

How this rating is built, and its real limits · Conventional vs. engineered septic systems