⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Marion County

Marion County, Illinois: well depth, yield & drilling cost

✓ 1,255 ISGS records · verified 2026-08-20

50 ftmedian well depth
32 ft–90 fttypical depth range
7 gpmmedian yield (415 tests)

How deep are wells in Marion County, Illinois?

The median drilled well depth in Marion County is 50 ft, based on 1,130 wells with recorded depths in the state ISGS database. Half of all wells fall between 32 ft and 90 ft; 90% are shallower than 130 ft. Wells drilled since 2016 have a median depth of 50 ft.

How much does it cost to drill a well in Marion County?

Applying published per-foot rates to the local median depth of 50 ft: drilling and casing alone typically runs $1,250–$3,250; a complete system including pump, pressure tank, and hookup typically runs $3,000–$5,000. Actual quotes depend on site access, geology, and casing requirements.

Get quotes from drillers active in Marion County

Free for property owners. We route your request only to licensed drillers who actually file well logs in Marion County — never sold elsewhere.

What is the static water level in Marion County?

Few static water level measurements are recorded for this county.

How much water do wells in Marion County produce?

The median tested yield is 7 gpm (middle half: 3 gpm–20 gpm), from 415 pump tests. A typical household needs 5–10 gpm.

Pull every recorded well near a Marion County address — $29

Drilled depth distribution

0–50 ft 556 50–100 ft 317 100–150 ft 184 150–200 ft 44 200–300 ft 16 300–400 ft 1 400–600 ft 1 600+ ft 11

Who drills wells in Marion County?

Companies and licensed drillers by number of wells logged in this county, per records filed with the Illinois State Geological Survey.

DrillerWells since 2016
Haake, Ralph2
Greg A. Evans1

See every driller with wells on record in Marion County, ranked →

Get quotes from local drillers

Looking at a specific property in Marion County?

See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.

Free lookup Property report — $29

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.