Iowa Well Data › Johnson County

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

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

✓ 5,286 Iowa DNR records · verified 2026-10-19

180 ftmedian well depth

100 ft–295 fttypical depth range

297 ftmedian depth since 2016

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How deep are wells in Johnson County, Iowa?

The median drilled well depth in Johnson County is 180 ft, based on 5,032 wells with recorded depths in the state Iowa DNR database. Half of all wells fall between 100 ft and 295 ft; 90% are shallower than 398 ft. Wells drilled since 2016 have a median depth of 297 ft.

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

Applying published per-foot rates to the local median depth of 297 ft: drilling and casing alone typically runs $7,425–$19,305; a complete system including pump, pressure tank, and hookup typically runs $17,820–$29,700. Actual quotes depend on site access, geology, and casing requirements.

Drilled depth distribution

0–50 ft 723 50–100 ft 467 100–150 ft 945 150–200 ft 507 200–300 ft 1,159 300–400 ft 729 400–600 ft 488 600+ ft 14

Who drills wells in Johnson County?

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

Driller	Wells since 2016
GINGERICH,CORWIN - 2638	177
GELEMENT,VALENTIN - 10711	47
ALLEN,JOSEPH - 1035	39
STOLL,AUSTEN - 9987	35
* Unknown, -	28
GINGERICH,BRADEN - 10913	25
FREESE,RICK - 2544	17
SMITH,JOSEPH - 5189	16

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Well records by ZIP code in Johnson County

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

Swisher (52338) — 825 wells, median 220 ft
Solon (52333) — 551 wells, median 235 ft
Iowa City (52244) — 422 wells, median 132 ft
North Liberty (52317) — 415 wells, median 225 ft
Oxford (52322) — 392 wells, median 159 ft
Hills (52235) — 365 wells, median 80 ft
Iowa City (52245) — 341 wells, median 228 ft
Iowa City (52240) — 315 wells, median 98 ft
Coralville (52241) — 292 wells, median 242 ft
Tiffin (52340) — 289 wells, median 176 ft
Lone Tree (52755) — 262 wells, median 100 ft
Iowa City (52246) — 209 wells, median 180 ft
Walford (52351) — 142 wells, median 300 ft
Iowa City (52242) — 116 wells, median 47 ft
Iowa City (52243) — 67 wells, median 29 ft
Amana (52204) — 54 wells, median 390 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.