Illinois Well Data › Mason County
Mason County, Illinois: well depth, yield & drilling cost
✓ 3,212 ISGS records · verified 2026-10-12
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How deep are wells in Mason County, Illinois?
The median drilled well depth in Mason County is 97 ft, based on 3,143 wells with recorded depths in the state ISGS database. Half of all wells fall between 75 ft and 115 ft; 90% are shallower than 142 ft. Wells drilled since 2016 have a median depth of 95 ft.
How much does it cost to drill a well in Mason County?
Applying published per-foot rates to the local median depth of 95 ft: drilling and casing alone typically runs $2,375–$6,175; a complete system including pump, pressure tank, and hookup typically runs $5,700–$9,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Mason County?
Few static water level measurements are recorded for this county.
How much water do wells in Mason County produce?
The median tested yield is 550 gpm (middle half: 20 gpm–1,100 gpm), from 760 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Mason 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 |
|---|---|
| Tracy A McConnel | 90 |
| Greg Tarter | 53 |
| Greenfield, Edward K. | 48 |
| Henry, John | 48 |
| Cole, Steve | 25 |
| Danner, James | 24 |
| Wagenbach, Mark | 17 |
| Warner, Scott | 13 |
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Well records by ZIP code in Mason County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Manito (61546) — 732 wells, median 97 ft
- Havana (62644) — 519 wells, median 70 ft
- Easton (62633) — 353 wells, median 113 ft
- Bath (62617) — 349 wells, median 93 ft
- Forest City (61532) — 341 wells, median 102 ft
- Topeka (61567) — 312 wells, median 98 ft
- Kilbourne (62655) — 296 wells, median 100 ft
- San Jose (62682) — 263 wells, median 116 ft
- Mason City (62664) — 243 wells, median 158 ft
- Liverpool (61543) — 189 wells, median 75 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.