⟁ California Well Data field records · 2026 survey

California Well Data › Sonoma County › Rohnert Park (94928)

Rohnert Park, CA (94928): well depth, water level & drilling cost

✓ 687 DWR records · Sonoma County

220 ftmedian well depth
143 ft–348 fttypical depth range
45 ftmedian static water level
28 gpmmedian yield (374 tests)

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How deep are wells in and around Rohnert Park (94928), California?

The median drilled well depth in and around Rohnert Park (94928) is 220 ft, based on 555 wells with recorded depths in the state DWR database. Half fall between 143 ft and 348 ft; 90% are shallower than 539 ft.

How much does it cost to drill a well in and around Rohnert Park (94928)?

Applying published per-foot rates to the local median depth of 220 ft: drilling and casing alone typically runs $5,500–$14,300; a complete system including pump, pressure tank, and hookup typically runs $13,200–$22,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Rohnert Park (94928)?

The median static water level is 45 ft below ground surface (middle half of wells: 24 ft–80 ft), from 340 measurements.

Drilled depth distribution

0–50 ft 15 50–100 ft 48 100–150 ft 88 150–200 ft 87 200–300 ft 126 300–400 ft 75 400–600 ft 71 600+ ft 45
Looking at a specific property in Rohnert Park (94928)?

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Part of Sonoma 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.