California Well Data › Monterey County
Monterey County, California: well depth, water level & drilling cost
✓ 11,254 DWR records · verified 2026-10-02
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How deep are wells in Monterey County, California?
The median drilled well depth in Monterey County is 310 ft, based on 9,183 wells with recorded depths in the state DWR database. Half of all wells fall between 185 ft and 499 ft; 90% are shallower than 660 ft. Wells drilled since 2016 have a median depth of 500 ft.
How much does it cost to drill a well in Monterey County?
Applying published per-foot rates to the local median depth of 500 ft: drilling and casing alone typically runs $12,500–$32,500; a complete system including pump, pressure tank, and hookup typically runs $30,000–$50,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Monterey County?
The median static water level is 96 ft below ground surface (middle half of wells: 47 ft–176 ft), from 6,375 measurements.
How much water do wells in Monterey County produce?
The median tested yield is 30 gpm (middle half: 15 gpm–150 gpm), from 4,475 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Monterey County?
Companies by number of wells completed in this county since 2016, per filed well completion reports (California Department of Water Resources).
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Well records by ZIP code in Monterey County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Aromas (95004) — 1,150 wells, median 300 ft
- Salinas (93907) — 959 wells, median 316 ft
- Carmel Valley (93924) — 841 wells, median 318 ft
- Watsonville (95076) — 489 wells, median 256 ft
- Moss Landing (95039) — 450 wells, median 300 ft
- Gonzales (93926) — 385 wells, median 420 ft
- Salinas (93908) — 370 wells, median 400 ft
- Salinas (93905) — 363 wells, median 480 ft
- Chualar (93925) — 343 wells, median 518 ft
- Soledad (93960) — 335 wells, median 300 ft
- Castroville (95012) — 322 wells, median 340 ft
- Lockwood (93932) — 318 wells, median 318 ft
- Greenfield (93927) — 316 wells, median 220 ft
- Spreckels (93962) — 308 wells, median 380 ft
- King City (93930) — 303 wells, median 190 ft
- Marina (93933) — 283 wells, median 379 ft
- Carmel (93923) — 273 wells, median 200 ft
- San Miguel (93451) — 270 wells, median 400 ft
- Salinas (93906) — 268 wells, median 460 ft
- Salinas (93902) — 224 wells, median 188 ft
- Monterey (93940) — 215 wells, median 430 ft
- Jolon (93928) — 198 wells, median 500 ft
- San Ardo (93450) — 172 wells, median 188 ft
- Carmel (93922) — 170 wells, median 230 ft
- San Lucas (93954) — 155 wells, median 124 ft
- Salinas (93901) — 143 wells, median 364 ft
- Big Sur (93920) — 128 wells, median 297 ft
- Monterey (93943) — 113 wells, median 300 ft
- Seaside (93955) — 109 wells, median 540 ft
- Monterey (93942) — 70 wells, median 436 ft
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). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.