⟁ Colorado Well Data field records · 2026 survey

Colorado Well Data › Douglas County › Castle Rock (80109)

Castle Rock, CO (80109): well depth, water level & drilling cost

✓ 1,320 DWR records · Douglas County

510 ftmedian well depth
360 ft–655 fttypical depth range
340 ftmedian static water level
12 gpmmedian yield (692 tests)

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How deep are wells in and around Castle Rock (80109), Colorado?

The median drilled well depth in and around Castle Rock (80109) is 510 ft, based on 968 wells with recorded depths in the state DWR database. Half fall between 360 ft and 655 ft; 90% are shallower than 804 ft.

How much does it cost to drill a well in and around Castle Rock (80109)?

Applying published per-foot rates to the local median depth of 510 ft: drilling and casing alone typically runs $12,750–$33,150; a complete system including pump, pressure tank, and hookup typically runs $30,600–$51,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Castle Rock (80109)?

The median static water level is 340 ft below ground surface (middle half of wells: 250 ft–430 ft), from 100 measurements.

Drilled depth distribution

0–50 ft 15 50–100 ft 29 100–150 ft 15 150–200 ft 18 200–300 ft 70 300–400 ft 129 400–600 ft 357 600+ ft 335
Looking at a specific property in Castle Rock (80109)?

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Get quotes from drillers who work in Castle Rock (80109)

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Part of Douglas County well records.

Method: medians computed from DWR records (DWR well permits, applications that were denied, withdrawn, cancelled or are still pending excluded; depths 0–5,000 ft), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.