Colorado Well Data › Boulder County
Boulder County, Colorado: well depth, water level & drilling cost
✓ 19,582 DWR records · verified 2026-08-14
How deep are wells in Boulder County, Colorado?
The median drilled well depth in Boulder County is 145 ft, based on 13,695 wells with recorded depths in the state DWR database. Half of all wells fall between 30 ft and 310 ft; 90% are shallower than 500 ft. Wells drilled since 2016 have a median depth of 25 ft.
How much does it cost to drill a well in Boulder County?
Applying published per-foot rates to the local median depth of 25 ft: drilling and casing alone typically runs $625–$1,625; a complete system including pump, pressure tank, and hookup typically runs $1,500–$2,500. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in Boulder County?
The median static water level is 20 ft below ground surface (middle half of wells: 9 ft–70 ft), from 736 measurements.
How much water do wells in Boulder County produce?
The median tested yield is 7 gpm (middle half: 5 gpm–10 gpm), from 3,907 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Boulder County?
Companies by number of wells permitted in this county, per well construction reports filed with the Colorado Division of Water Resources. Permits recorded without a licensed driller (owner-built, or approved by a professional engineer) are excluded.
| Driller | Wells since 2016 |
|---|---|
| Ingram Drilling Inc. | 110 |
| James Drilling | 80 |
| C R Smith Drilling Inc | 55 |
| Johns Well Service | 50 |
| Kelley Dewatering And Construction Company | 22 |
| Arrow Drilling | 11 |
| Avco Ventures Inc. | 6 |
| Crandall Drilling & Pump Service | 6 |
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Free lookup Property report — $29Method: medians computed from DWR records (DWR well permits, applications that were denied, withdrawn, cancelled or are still pending excluded; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.