⟁ California Well Data field records · 2026 survey

California Well Data › San Mateo County › San Mateo (94497)

San Mateo, CA (94497): well depth, water level & drilling cost

✓ 123 DWR records · San Mateo County

124 ftmedian well depth
63 ft–329 fttypical depth range
27 ftmedian static water level
10 gpmmedian yield (13 tests)

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How deep are wells in and around San Mateo (94497), California?

The median drilled well depth in and around San Mateo (94497) is 124 ft, based on 40 wells with recorded depths in the state DWR database. Half fall between 63 ft and 329 ft; 90% are shallower than 1,297 ft.

How much does it cost to drill a well in and around San Mateo (94497)?

Applying published per-foot rates to the local median depth of 124 ft: drilling and casing alone typically runs $3,100–$8,060; a complete system including pump, pressure tank, and hookup typically runs $7,440–$12,400. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around San Mateo (94497)?

The median static water level is 27 ft below ground surface (middle half of wells: 10 ft–84 ft), from 18 measurements.

Drilled depth distribution

0–50 ft 5 50–100 ft 8 100–150 ft 9 150–200 ft 1 200–300 ft 4 300–400 ft 3 400–600 ft 3 600+ ft 7
Looking at a specific property in San Mateo (94497)?

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Part of San Mateo 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.