Kootenai County, Idaho
Average Well Depth in Post Falls, Idaho
Wells within 5 miles of Post Falls were drilled to a median depth of 317 ft, and half were between 220 and 510 ft. After drilling, water typically stood about 100 ft below ground. The median well produced 15 gallons per minute. Based on 1,082 Idaho Department of Water Resources well records, updated October 2026.
Historical records within 5 miles of central Post Falls, not a guarantee for any property. Only drilling confirms depth, water quality and yield. Disclaimer
How deep is my well going to be?
Depth changes from one street to the next. Check the wells closest to your exact address.
Are wells near Post Falls getting deeper?
Wells drilled near Post Falls in the 2020s have a median depth of 450 ft, 110 ft deeper than those from the 1990s (340 ft). Budget toward the upper end of the range.
| Decade drilled | Median depth | Wells |
|---|---|---|
| 1990s | 340 ft | 18 |
| 2000s | 300 ft | 578 |
| 2010s | 320 ft | 285 |
| 2020s | 450 ft | 196 |
Well drilling contractors near Post Falls
Get a free quote from a licensed driller matched to Kootenai County. No obligation.
Before you drill in Post Falls
- Permit: a licensed Idaho driller files the drilling permit (a start card for a single-family home) with the Idaho Department of Water Resources.
- Health district: Panhandle Health District sets septic and well setback rules for Kootenai County.
- City water: inside Post Falls city limits, check whether you're required to connect to city water before planning a well.
- Buying land? The Premium Property Well Report adds nearby water quality, groundwater restrictions and a cost estimate for one property.
Post Falls well questions
How deep are wells in Post Falls, Idaho?
Wells within 5 miles of Post Falls have a median depth of 317 feet, and half were drilled between 220 and 510 feet, based on 1,082 Idaho Department of Water Resources well records. Depth varies by location, so look up your exact address.
How much does it cost to drill a well in Post Falls?
For a typical 220–510 ft household well with a pump system, a rough planning range is $11,900 to $41,200, based on Idaho averages of $28–65 per foot to drill, about $8 per foot for PVC casing and about $4,000 for the pump system. Basalt, steel casing or a long trench to the house cost more. Get a written quote from a licensed driller for a real price.
How deep is a shallow well near Post Falls?
3% of recorded wells within 5 miles of Post Falls are less than 100 feet deep. Shallow wells cost less to drill but are more exposed to surface contamination and seasonal water-level drops.
Do I need a permit to drill a well in Post Falls?
Yes. A licensed Idaho driller files a drilling permit (a start card for a single-family household well) with IDWR before drilling. Ask Panhandle Health District about septic setbacks, and check whether Post Falls requires a city water hookup inside city limits.
Well depth in nearby Idaho cities
Source: Idaho Department of Water Resources well records within 5 miles of central Post Falls. Updated October 2026.