Illinois Well Data › Jo Daviess County
Jo Daviess County, Illinois: well depth, yield & drilling cost
✓ 2,994 ISGS records · verified 2026-10-12
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How deep are wells in Jo Daviess County, Illinois?
The median drilled well depth in Jo Daviess County is 220 ft, based on 2,960 wells with recorded depths in the state ISGS database. Half of all wells fall between 180 ft and 305 ft; 90% are shallower than 410 ft. Wells drilled since 2016 have a median depth of 220 ft.
How much does it cost to drill a well in Jo Daviess County?
Applying published per-foot rates to the local median depth of 220 ft: drilling and casing alone typically runs $5,500–$14,300; a complete system including pump, pressure tank, and hookup typically runs $13,200–$22,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Jo Daviess County?
Few static water level measurements are recorded for this county.
How much water do wells in Jo Daviess County produce?
The median tested yield is 20 gpm (middle half: 15 gpm–25 gpm), from 2,412 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Jo Daviess 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 |
|---|---|
| Thompson, John J. | 73 |
| Thompson, John | 45 |
| Lyons, Larry | 23 |
| Shawn N Lyons | 4 |
| Stoll, Austen | 2 |
| Faherty, Jeff | 2 |
| Schuur, Bill | 1 |
| Bull Well Drilling Inc | 1 |
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Well records by ZIP code in Jo Daviess County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Galena (61036) — 779 wells, median 208 ft
- Elizabeth (61028) — 442 wells, median 245 ft
- East Dubuque (61025) — 429 wells, median 240 ft
- Stockton (61085) — 355 wells, median 205 ft
- Scales Mound (61075) — 302 wells, median 260 ft
- Hanover (61041) — 273 wells, median 249 ft
- Kent (61044) — 233 wells, median 205 ft
- Apple River (61001) — 110 wells, median 210 ft
- Nora (61059) — 106 wells, median 182 ft
- Warren (61087) — 53 wells, median 185 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.