⟁ California Well Data field records · 2026 survey

California Well Data › Mariposa County › Coulterville (95311)

Coulterville, CA (95311): well depth, water level & drilling cost

✓ 545 DWR records · Mariposa County

205 ftmedian well depth
150 ft–300 fttypical depth range
40 ftmedian static water level
20 gpmmedian yield (381 tests)

Pull every recorded well near a Coulterville (95311) address — $49

How deep are wells in and around Coulterville (95311), California?

The median drilled well depth in and around Coulterville (95311) is 205 ft, based on 330 wells with recorded depths in the state DWR database. Half fall between 150 ft and 300 ft; 90% are shallower than 450 ft.

How much does it cost to drill a well in and around Coulterville (95311)?

Applying published per-foot rates to the local median depth of 205 ft: drilling and casing alone typically runs $5,125–$13,325; a complete system including pump, pressure tank, and hookup typically runs $12,300–$20,500. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Coulterville (95311)?

The median static water level is 40 ft below ground surface (middle half of wells: 30 ft–70 ft), from 146 measurements.

Drilled depth distribution

0–50 ft 6 50–100 ft 23 100–150 ft 44 150–200 ft 55 200–300 ft 99 300–400 ft 54 400–600 ft 33 600+ ft 16
Looking at a specific property in Coulterville (95311)?

See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.

Free lookup Property report — $49
Get quotes from drillers who work in Coulterville (95311)

Free. Goes to licensed drillers working Mariposa County.

Part of Mariposa County well records.

Method: medians computed from DWR records (filed well completion reports, water-supply uses only (destruction, repair and monitoring wells 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.