Iowa Well Data › Monona County

Monona County, Iowa: well depth, owners & drilling cost

Name: Monona County, Iowa water well statistics
Creator: Iowa Well Data
License: https://creativecommons.org/licenses/by/4.0/

✓ 2,061 Iowa DNR records · verified 2026-10-19

100 ftmedian well depth

66 ft–108 fttypical depth range

100 ftmedian depth since 2016

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How deep are wells in Monona County, Iowa?

The median drilled well depth in Monona County is 100 ft, based on 1,869 wells with recorded depths in the state Iowa DNR database. Half of all wells fall between 66 ft and 108 ft; 90% are shallower than 223 ft. Wells drilled since 2016 have a median depth of 100 ft.

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

Applying published per-foot rates to the local median depth of 100 ft: drilling and casing alone typically runs $2,500–$6,500; a complete system including pump, pressure tank, and hookup typically runs $6,000–$10,000. Actual quotes depend on site access, geology, and casing requirements.

Drilled depth distribution

0–50 ft 309 50–100 ft 587 100–150 ft 659 150–200 ft 70 200–300 ft 146 300–400 ft 77 400–600 ft 21 600+ ft 0

Who drills wells in Monona County?

Companies by number of wells completed in this county, per the well records Iowa drillers file with the DNR.

Driller	Wells since 2016
BRESNAHAN,RON - 1626	53
RICHARDS,JUSTIN - 10632	50
MCCONNELL,TRACY - 7037	32
MEEKER,RICK - 7276	28
WALSH,DENNIS - 5683	24
MEEKER,RONALD - 3971	22
WALSH,DENNIS - 11294	13
KNEIFL,JAMES - 6865	12

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Well records by ZIP code in Monona County

Median depth, water level, and yield for each ZIP code with recorded wells.

Onawa (51040) — 349 wells, median 100 ft
Whiting (51063) — 329 wells, median 100 ft
Castana (51010) — 286 wells, median 99 ft
Mapleton (51034) — 194 wells, median 92 ft
Blencoe (51523) — 177 wells, median 100 ft
Moorhead (51558) — 173 wells, median 111 ft
Rodney (51051) — 172 wells, median 94 ft
Soldier (51572) — 124 wells, median 100 ft
Ute (51060) — 119 wells, median 75 ft

Method: medians computed from Iowa DNR records (Iowa DNR Well Information System records, water-supply wells only (monitoring, test, dewatering, injection and closed-loop geothermal wells excluded); depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.