Colorado Well Data › Jefferson County
Jefferson County, Colorado: well depth, water level & drilling cost
✓ 39,837 DWR records · verified 2026-08-14
How deep are wells in Jefferson County, Colorado?
The median drilled well depth in Jefferson County is 200 ft, based on 26,819 wells with recorded depths in the state DWR database. Half of all wells fall between 50 ft and 410 ft; 90% are shallower than 640 ft. Wells drilled since 2016 have a median depth of 135 ft.
How much does it cost to drill a well in Jefferson County?
Applying published per-foot rates to the local median depth of 135 ft: drilling and casing alone typically runs $3,375–$8,775; a complete system including pump, pressure tank, and hookup typically runs $8,100–$13,500. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in Jefferson County?
The median static water level is 75 ft below ground surface (middle half of wells: 24 ft–150 ft), from 1,365 measurements.
How much water do wells in Jefferson County produce?
The median tested yield is 6 gpm (middle half: 3 gpm–10 gpm), from 9,013 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Jefferson 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 |
|---|---|
| James Drilling | 502 |
| Living Water Systems Inc. | 179 |
| Holland And Sons Water Well Drilling | 53 |
| Kelley Dewatering And Construction Company | 24 |
| Arrow Drilling | 19 |
| Holland/McMullen Water Well Drilling | 19 |
| C R Smith Drilling Inc | 13 |
| Aspen Drilling Company Inc | 8 |
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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lookup Property report — $29Method: medians computed from DWR records (DWR well permits, applications that were denied, withdrawn, cancelled or are still pending excluded; depths 0–5,000 ft).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.