Missouri Well Data › Dallas County
Dallas County, Missouri: well depth, water level & drilling cost
✓ 3,615 MoDNR records · verified 2026-10-12
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How deep are wells in Dallas County, Missouri?
The median drilled well depth in Dallas County is 305 ft, based on 3,595 wells with recorded depths in the state MoDNR database. Half of all wells fall between 250 ft and 365 ft; 90% are shallower than 427 ft. Wells drilled since 2016 have a median depth of 350 ft.
How much does it cost to drill a well in Dallas 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 Dallas County?
The median static water level is 90 ft below ground surface (middle half of wells: 70 ft–125 ft), from 3,369 measurements.
How much water do wells in Dallas County produce?
The median tested yield is 40 gpm (middle half: 30 gpm–50 gpm), from 3,425 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Dallas 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 |
|---|---|
| JEREMY MCCARTHY | 166 |
| ALLEN WILLEY | 126 |
| MARK REPLOGLE | 92 |
| TIMOTHY GRABHER | 49 |
| TIMOTHY STOKES | 48 |
| GARY SPRADLING | 46 |
| RYAN CHOATE | 44 |
| NATHAN AARON WILSON | 25 |
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Well records by ZIP code in Dallas County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Buffalo (65622) — 838 wells, median 300 ft
- Long Lane (65590) — 537 wells, median 310 ft
- Windyville (65783) — 496 wells, median 315 ft
- Louisburg (65685) — 404 wells, median 315 ft
- Tunas (65764) — 386 wells, median 295 ft
- Urbana (65767) — 367 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.