California Well Data › Ventura County
Ventura County, California: well depth, water level & drilling cost
✓ 8,649 DWR records · verified 2026-10-02
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How deep are wells in Ventura County, California?
The median drilled well depth in Ventura County is 300 ft, based on 6,328 wells with recorded depths in the state DWR database. Half of all wells fall between 179 ft and 503 ft; 90% are shallower than 880 ft. Wells drilled since 2016 have a median depth of 460 ft.
How much does it cost to drill a well in Ventura County?
Applying published per-foot rates to the local median depth of 460 ft: drilling and casing alone typically runs $11,500–$29,900; a complete system including pump, pressure tank, and hookup typically runs $27,600–$46,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Ventura County?
The median static water level is 70 ft below ground surface (middle half of wells: 31 ft–151 ft), from 1,068 measurements.
How much water do wells in Ventura County produce?
The median tested yield is 100 gpm (middle half: 25 gpm–1,200 gpm), from 2,609 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Ventura County?
Companies by number of wells completed in this county since 2016, per filed well completion reports (California Department of Water Resources).
| Driller | Wells since 2016 |
|---|---|
| HANSEN-WELLDO-SERVICE INC | 33 |
| SIERRA EXPLORATION DRILLING CO INC | 23 |
| THOMAS MURPHY PUMP & WELL | 22 |
| PACIFIC COAST WELL DRILLING INC | 21 |
| M DRILL | 16 |
| CASCADE WELL CO | 15 |
| BARBOUR WELL INC | 14 |
| BEKS ACQUISITION INC | 13 |
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Well records by ZIP code in Ventura County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Fillmore (93015) — 512 wells, median 251 ft
- Newbury Park (91320) — 436 wells, median 400 ft
- Point Mugu Nawc (93042) — 388 wells, median 380 ft
- Ojai (93024) — 384 wells, median 300 ft
- Ventura (93004) — 371 wells, median 375 ft
- Simi Valley (93065) — 367 wells, median 300 ft
- Camarillo (93011) — 365 wells, median 559 ft
- Camarillo (93010) — 329 wells, median 816 ft
- Moorpark (93020) — 324 wells, median 423 ft
- Oxnard (93030) — 303 wells, median 230 ft
- Frazier Park (93225) — 300 wells, median 270 ft
- Brandeis (93064) — 296 wells, median 230 ft
- Simi Valley (93062) — 259 wells, median 214 ft
- Oxnard (93036) — 251 wells, median 300 ft
- Ventura (93002) — 247 wells, median 350 ft
- Somis (93066) — 236 wells, median 899 ft
- Newbury Park (91319) — 225 wells, median 221 ft
- Oxnard (93033) — 215 wells, median 242 ft
- Ventura (93009) — 213 wells, median 256 ft
- Santa Paula (93060) — 204 wells, median 200 ft
- Westlake Village (91361) — 198 wells, median 335 ft
- Oxnard (93032) — 187 wells, median 226 ft
- Santa Paula (93061) — 175 wells, median 308 ft
- Ventura (93003) — 173 wells, median 364 ft
- Oxnard (93035) — 170 wells, median 240 ft
- Simi Valley (93063) — 169 wells, median 267 ft
- Piru (93040) — 168 wells, median 260 ft
- Oak View (93022) — 161 wells, median 160 ft
- Thousand Oaks (91360) — 156 wells, median 279 ft
- Ojai (93023) — 155 wells, median 180 ft
- Camarillo (93012) — 136 wells, median 595 ft
- Port Hueneme (93044) — 124 wells, median 214 ft
- Thousand Oaks (91358) — 99 wells, median 106 ft
- Moorpark (93021) — 88 wells, median 347 ft
- Ventura (93001) — 87 wells, median 340 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.