Iowa Water Well Depth & Drilling Cost Guide
Authoritative hydrogeological intelligence for Iowa. Regulated by the Iowa Department of Natural Resources (IDNR). The statewide median drilling depth is 190 feet (ranging 50–520 ft) with an average drilling cost of $39 per foot ($28 to $65/ft).
Quick Hydrogeological Fact Sheet: Iowa
To reach potable water in Iowa, residential wells require drilling an average of 190 feet deep. Total turnkey installation costs average $9,600 USD for a completed 6-inch casing well, 1.5 HP submersible pump, pressure tank, and state permits. The standing static water table sits at approximately 45 feet below surface level, producing a reliable average flow rate of 18 GPM across the primary Mississippian Aquifer.
Iowa County-Level Well Logs & Average Depths
Official USGS hydrogeological monitoring stations, static levels, and driller completion records.
| County Name | Median Depth (ft) | Avg Cost / Foot | Typical Yield | Primary Aquifer | Local Action |
|---|---|---|---|---|---|
| Polk County | 170 ft | $38 /ft | 20 GPM | Des Moines River Alluvium |
|
| Linn County | 210 ft | $40 /ft | 16 GPM | Silurian Dolomite |
💰 Estimated Turnkey Cost Itemization in Iowa
Component-by-component breakdown for a standard residential water well (190 ft average).
| System Component | Specification in Iowa | Unit Cost | Estimated Subtotal |
|---|---|---|---|
| Borehole Drilling & Sanitary Casing | 190 ft depth with standard 6" PVC/Steel Casing & Drive Shoe | $39 /ft | $7,410 USD |
| Submersible Pump & Drop Pipe | 1.0 HP – 1.5 HP Stainless Submersible Pump with 12-gauge electrical drop cable | Turnkey Pump Unit | $2,250 USD |
| Pressure Tank & Control Switch | 40-gallon Captive Air Pressure Tank, 40/60 PSI Pressure Switch & Gauge | Standard Assembly | $1,200 USD |
| State Permits, Sanitary Grouting & Lab Water Testing | Mandatory Iowa Department of Natural Resources (IDNR) permit, bentonite surface seal, and EPA drinking panel | State Fee + Lab | $575 USD |
| TOTAL ESTIMATED TURNKEY INVESTMENT | Includes excavation, drilling, plumbing hookup, and water inspection | $9,600 USD | |
Iowa Aquifers & Subsurface Geology
Glacial till over limestone, dolomite and deep St. Peter/Jordan sandstone
Water Quality & Recommended Filtration
⚖️ Iowa Well Drilling Regulations & Legal Setbacks
Calculate Drilling Cost in Iowa
Pre-loaded with Iowa median depth (190 ft) and average cost ($39/ft).
Frequently Asked Questions: Drilling Wells in Iowa
1. How deep do you usually have to drill for water in Iowa?
Across Iowa, the median residential water well is drilled to 190 feet. However, shallow alluvial wells can hit water as high as 50 feet, while deep bedrock or limestone aquifer wells may require drilling down to 520 feet to reach sufficient pressure and yield.
2. How much does a complete water well cost in Iowa?
On average, homeowners in Iowa invest $9,600 USD for a complete turnkey system. Drilling alone costs $39 per foot (ranging $28–$65/ft), while submersible pumps, pressure tanks, state permit fees ($125), and electrical hookups comprise the remaining balance.
3. What is the required setback from septic tanks in Iowa?
State health mandates overseen by the Iowa Department of Natural Resources (IDNR) require a minimum separation distance of 100 feet from any septic tank, leach field, or potential contamination source, plus at least 15 feet from adjacent property boundaries.
4. What is the groundwater quality like in Iowa?
Wells in Iowa typically yield water with a hardness reading around 320 PPM and an average pH of 7.7. Key minerals present in natural groundwater include Extreme Calcium Hardness, Iron, Nitrates in shallow wells. The recommended standard filtration configuration is: Commercial Capacity Water Softener + Iron Filter.
🗺️ Neighboring & Regional Groundwater Guides
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