Septic service in Montana

SepticTank.com covers 56 cities and towns in Montana, home to about 588,902 people. The largest are Billings, Missoula and Great Falls.

Soil and climate differ across Montana. In the 56 cities with local data so far, a median of 79% of nearby mapped soils are rated very limited for septic absorption fields, and yearly precipitation ranges from about 14 to 38 inches. Each city page shows the figures for that area.

Septic permits in Montana are handled by state and county health or environmental agencies. Check with your county before installing, replacing or making major repairs to a system, and ask your septic company which rules apply to your property.