Illinois Well Data › Piatt County
Piatt County, Illinois: well depth, yield & drilling cost
✓ 1,678 ISGS records · verified 2026-10-12
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How deep are wells in Piatt County, Illinois?
The median drilled well depth in Piatt County is 140 ft, based on 1,668 wells with recorded depths in the state ISGS database. Half of all wells fall between 96 ft and 215 ft; 90% are shallower than 242 ft. Wells drilled since 2016 have a median depth of 136 ft.
How much does it cost to drill a well in Piatt County?
Applying published per-foot rates to the local median depth of 140 ft: drilling and casing alone typically runs $3,500–$9,100; a complete system including pump, pressure tank, and hookup typically runs $8,400–$14,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Piatt County?
Few static water level measurements are recorded for this county.
How much water do wells in Piatt County produce?
The median tested yield is 20 gpm (middle half: 10 gpm–45 gpm), from 1,181 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Piatt 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 |
|---|---|
| S & J Well Drilling | 30 |
| Parrott, Cody | 20 |
| Layten, James | 15 |
| Findlay Bros. Well Drilling | 12 |
| Layten, Mark J. | 6 |
| Mashburn, Robert | 4 |
| Beck, Harold F. Jr. | 2 |
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Well records by ZIP code in Piatt County
Median depth, water level, and yield for each ZIP code with recorded wells.
- White Heath (61884) — 420 wells, median 198 ft
- Monticello (61856) — 315 wells, median 131 ft
- Mansfield (61854) — 221 wells, median 215 ft
- Cisco (61830) — 173 wells, median 200 ft
- De Land (61839) — 162 wells, median 96 ft
- Milmine (61855) — 95 wells, median 130 ft
- Hammond (61929) — 84 wells, median 85 ft
- Cerro Gordo (61818) — 80 wells, median 109 ft
- Bement (61813) — 74 wells, median 120 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.