⟁ California Well Data field records · 2026 survey

California Well Data › Napa County › Yountville (94599)

Yountville, CA (94599): well depth, water level & drilling cost

✓ 1,121 DWR records · Napa County

320 ftmedian well depth
210 ft–460 fttypical depth range
37 ftmedian static water level
45 gpmmedian yield (639 tests)

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How deep are wells in and around Yountville (94599), California?

The median drilled well depth in and around Yountville (94599) is 320 ft, based on 953 wells with recorded depths in the state DWR database. Half fall between 210 ft and 460 ft; 90% are shallower than 603 ft.

How much does it cost to drill a well in and around Yountville (94599)?

Applying published per-foot rates to the local median depth of 320 ft: drilling and casing alone typically runs $8,000–$20,800; a complete system including pump, pressure tank, and hookup typically runs $19,200–$32,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Yountville (94599)?

The median static water level is 37 ft below ground surface (middle half of wells: 20 ft–80 ft), from 627 measurements.

Drilled depth distribution

0–50 ft 5 50–100 ft 26 100–150 ft 72 150–200 ft 84 200–300 ft 209 300–400 ft 200 400–600 ft 243 600+ ft 114
Looking at a specific property in Yountville (94599)?

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Part of Napa 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.