Illinois Well Data › Marshall County
Marshall County, Illinois: well depth, yield & drilling cost
✓ 973 ISGS records · verified 2026-10-12
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How deep are wells in Marshall County, Illinois?
The median drilled well depth in Marshall County is 105 ft, based on 944 wells with recorded depths in the state ISGS database. Half of all wells fall between 64 ft and 220 ft; 90% are shallower than 256 ft. Wells drilled since 2016 have a median depth of 154 ft.
How much does it cost to drill a well in Marshall County?
Applying published per-foot rates to the local median depth of 105 ft: drilling and casing alone typically runs $2,625–$6,825; a complete system including pump, pressure tank, and hookup typically runs $6,300–$10,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Marshall County?
Few static water level measurements are recorded for this county.
How much water do wells in Marshall County produce?
The median tested yield is 15 gpm (middle half: 10 gpm–30 gpm), from 546 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Marshall County?
Companies and licensed drillers by number of wells logged in this county, per records filed with the Illinois State Geological Survey.
| Driller | Wells since 2016 |
|---|---|
| Albrecht, Harold Dean | 20 |
| Thierry, Keith | 12 |
| Wagenbach, Mark | 10 |
| Tyler J. Gee | 5 |
| Bassham, Billy | 2 |
| Dana, Glen | 2 |
| Wiesenhofer, Andrew | 2 |
| Dryden, Michael | 1 |
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Well records by ZIP code in Marshall County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Henry (61537) — 196 wells, median 99 ft
- Sparland (61565) — 177 wells, median 56 ft
- Lacon (61540) — 165 wells, median 164 ft
- Washburn (61570) — 126 wells, median 112 ft
- Wenona (61377) — 88 wells, median 73 ft
- Varna (61375) — 82 wells, median 198 ft
- La Rose (61541) — 71 wells, median 86 ft
- Toluca (61369) — 52 wells, median 80 ft
- Camp Grove (61424) — 52 wells, median 181 ft
Method: medians computed from ISGS records (ISGS water wells; engineering, mineral and stratigraphic test borings, mine shafts, outcrops and monitoring wells are excluded, as are wells the survey records as plugged; depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.