Well depths in Teton County, Idaho
3,868 wells are on record with the state in Teton County.Reported depths run from 20 to 1,005 feet, with a median of 185 feet.
Median depth
185 ft
20–1,005 ft across 2,928 records
Median depth to water
75 ft
1–605 ft across 3,680 records
Median yield
20 gpm
1–8,000 gpm across 1,595 records
What a well costs in Teton County
A median-depth well, borehole only
$6,500–$11,000estimate
But depth is what drives the bill, and it varies. Across the range local wells actually hit — 84 to 420 ft — drilling runs $2,900–$25,000. That spread is the risk you are carrying when you make an offer, and it is why one quote is not enough.
- How this was worked out
- Median depth of 185 ft from 2,928 nearby well records, multiplied by a published statewide rate of $35-$60 per foot. Borehole only.
- Not included
- casing, pump and pressure tank, electrical and trenching, permits and site work
Rate from Well and Septic Cost in Rural Idaho (2026) (swagerbuilds.com, retrieved 2026-09-29). A published statewide figure, not a quote from this county — treat it as a starting point for a conversation with a licensed driller, not a price.
A county median will not tell you about your parcel
Groundwater changes over a few hundred feet. The useful number is what the wells nearest your parcel actually did — check the exact spot instead.
Check a Teton County locationFree. No account.
What these numbers are based on
Idaho drillers must file a report for every well they complete, and the Idaho Department of Water Resources publishes them. The figures above come from 3,868Teton County records retrieved on 2026-09-29.
Only 2,928 of those 3,868 records report a total depth, so the median is drawn from those. We do not fill the gaps.
Teton County sits 23 of 44 Idaho counties by median well depth — shallower than the middle county, whose median is 188.5 ft. That comparison is a rough orientation, not a prediction: a single county can contain both 40 ft and 600 ft wells.
Records here span 1943 to 2026. Coverage is most complete from July 1987 onward; earlier wells are patchy and some were never reported at all.
How accurately are these wells located?
About 54% of located wells in Teton County were placed from a section description — a 40-acre block or larger — rather than surveyed. For those, the true well could be several hundred feet from where the record puts it. That matters when you are asking what the nearest well did, and it is why our lookup labels every well with how it was located.
Who to talk to in Teton County
Septic systems here are permitted by Eastern Idaho Public Health (208-522-0310), not by the county. They decide what site evaluation a parcel needs. For water, get written per-foot quotes from at least two licensed Idaho drillers — the depth range above is why a single quote is not enough.
We do not yet publish verified local cost ranges for Teton County. We would rather show nothing than pass off a national average as a local figure.
Before you buy
- Look up the specific parcel, not the county.
- Get two or more written per-foot drilling quotes.
- Ask Eastern Idaho Public Health what septic evaluation is required.
- Have a title company confirm water rights and easements.
- Have boundaries and acreage confirmed by a licensed surveyor.