Missouri Well Data › St. Clair County
St. Clair County, Missouri: well depth, water level & drilling cost
✓ 1,940 MoDNR records · verified 2026-10-12
Pull every recorded well near a St. Clair County address — $49
How deep are wells in St. Clair County, Missouri?
The median drilled well depth in St. Clair County is 325 ft, based on 1,926 wells with recorded depths in the state MoDNR database. Half of all wells fall between 265 ft and 390 ft; 90% are shallower than 450 ft. Wells drilled since 2016 have a median depth of 350 ft.
How much does it cost to drill a well in St. Clair County?
Applying published per-foot rates to the local median depth of 350 ft: drilling and casing alone typically runs $8,750–$22,750; a complete system including pump, pressure tank, and hookup typically runs $21,000–$35,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in St. Clair County?
The median static water level is 105 ft below ground surface (middle half of wells: 80 ft–125 ft), from 1,699 measurements.
How much water do wells in St. Clair County produce?
The median tested yield is 30 gpm (middle half: 25 gpm–40 gpm), from 1,829 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in St. Clair County?
Drillers by number of wells certified in this county, per well certification records filed with the Missouri Geological Survey. Missouri licenses individual drillers rather than companies, so these are the people who signed the certification.
| Driller | Wells since 2016 |
|---|---|
| GARY SPRADLING | 152 |
| DON HOWE | 48 |
| JEREMY MCCARTHY | 46 |
| LATHAN COBB | 29 |
| TIMOTHY STOKES | 15 |
| KURTIS JOLANDER | 13 |
| MARK MCCULLOUGH | 11 |
| RYAN CHOATE | 10 |
See every driller with wells on record in St. Clair County, ranked →
Get quotes from local drillers
See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
Free lookup Property report — $49Free. Goes to licensed drillers working St. Clair County.
Well records by ZIP code in St. Clair County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Quincy (65735) — 474 wells, median 390 ft
- Osceola (64776) — 361 wells, median 330 ft
- Lowry City (64763) — 360 wells, median 325 ft
- Collins (64738) — 335 wells, median 330 ft
- Roscoe (64781) — 307 wells, median 280 ft
- Appleton City (64724) — 107 wells, median 323 ft
- Rockville (64780) — 71 wells, median 305 ft
Method: medians computed from MoDNR records (MoDNR certified water wells; depths 0-5,000 ft, with the file's 99999.9 and 88888 sentinel values excluded rather than clamped). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.