⟁ Missouri Well Data field records · 2026 survey

Missouri Well Data › St. Charles County › O Fallon (63368)

O Fallon, MO (63368): well depth, water level & drilling cost

✓ 50 MoDNR records · St. Charles County

635 ftmedian well depth
336 ft–770 fttypical depth range
120 ftmedian static water level
60 gpmmedian yield (38 tests)

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How deep are wells in and around O Fallon (63368), Missouri?

The median drilled well depth in and around O Fallon (63368) is 635 ft, based on 44 wells with recorded depths in the state MoDNR database. Half fall between 336 ft and 770 ft; 90% are shallower than 1,501 ft.

How much does it cost to drill a well in and around O Fallon (63368)?

Applying published per-foot rates to the local median depth of 635 ft: drilling and casing alone typically runs $15,875–$41,275; a complete system including pump, pressure tank, and hookup typically runs $38,100–$63,500. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around O Fallon (63368)?

The median static water level is 120 ft below ground surface (middle half of wells: 85 ft–189 ft), from 39 measurements.

Drilled depth distribution

0–50 ft 2 50–100 ft 0 100–150 ft 0 150–200 ft 0 200–300 ft 6 300–400 ft 4 400–600 ft 8 600+ ft 24
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Part of St. Charles County well records.

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), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.