Iowa Well Data › Dubuque County

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

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

✓ 4,877 Iowa DNR records · verified 2026-10-19

250 ftmedian well depth

191 ft–250 fttypical depth range

250 ftmedian depth since 2016

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How deep are wells in Dubuque County, Iowa?

The median drilled well depth in Dubuque County is 250 ft, based on 3,868 wells with recorded depths in the state Iowa DNR database. Half of all wells fall between 191 ft and 250 ft; 90% are shallower than 400 ft. Wells drilled since 2016 have a median depth of 250 ft.

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

Applying published per-foot rates to the local median depth of 250 ft: drilling and casing alone typically runs $6,250–$16,250; a complete system including pump, pressure tank, and hookup typically runs $15,000–$25,000. Actual quotes depend on site access, geology, and casing requirements.

Drilled depth distribution

0–50 ft 146 50–100 ft 184 100–150 ft 331 150–200 ft 355 200–300 ft 2,197 300–400 ft 265 400–600 ft 305 600+ ft 85

Who drills wells in Dubuque County?

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

Driller	Wells since 2016
ERICKSON,CRAIG - 7918	69
HALWEG, JR,DAVID - 10712	57
OGDEN,BEN - 6714	34
* Unknown, -	18
OGDEN,JEFFREY - 4326	10
GELEMENT,VALENTIN - 10711	4
GINGERICH,KLINT - 2639	4
* Unknown	4

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Well records by ZIP code in Dubuque County

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

Dubuque (52003) — 579 wells, median 250 ft
Dubuque (52002) — 521 wells, median 250 ft
Peosta (52068) — 495 wells, median 250 ft
Dyersville (52040) — 443 wells, median 200 ft
Sherrill (52073) — 397 wells, median 250 ft
Worthington (52078) — 320 wells, median 150 ft
Durango (52039) — 316 wells, median 250 ft
Dubuque (52001) — 272 wells, median 250 ft
Bernard (52032) — 268 wells, median 236 ft
Farley (52046) — 217 wells, median 225 ft
Epworth (52045) — 204 wells, median 250 ft
Holy Cross (52053) — 157 wells, median 250 ft
Luxemburg (52056) — 121 wells, median 250 ft
Dubuque (52004) — 86 wells, median 80 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.