Maryland Well Data › Frederick County

Frederick County, Maryland: well depth, owners & drilling cost

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

✓ 2,047 USGS NWIS records · verified 2026-09-22

135 ftmedian well depth

85 ft–221 fttypical depth range

—median depth since 2016

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How deep are wells in Frederick County, Maryland?

The median drilled well depth in Frederick County is 135 ft, based on 2,047 wells with recorded depths in the state USGS NWIS database. Half of all wells fall between 85 ft and 221 ft; 90% are shallower than 350 ft. Wells drilled since 2016 have a median depth of —.

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

Applying published per-foot rates to the local median depth of 135 ft: drilling and casing alone typically runs $3,375–$8,775; a complete system including pump, pressure tank, and hookup typically runs $8,100–$13,500. Actual quotes depend on site access, geology, and casing requirements.

Drilled depth distribution

0–50 ft 172 50–100 ft 471 100–150 ft 456 150–200 ft 274 200–300 ft 331 300–400 ft 189 400–600 ft 129 600+ ft 25

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Well records by ZIP code in Frederick County

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

Mount Airy (21771) — 221 wells, median 150 ft
Thurmont (21788) — 182 wells, median 150 ft
Smithsburg (21783) — 168 wells, median 140 ft
Frederick (21705) — 146 wells, median 140 ft
Frederick (21702) — 134 wells, median 115 ft
Frederick (21709) — 130 wells, median 160 ft
Braddock Heights (21714) — 128 wells, median 160 ft
Emmitsburg (21727) — 115 wells, median 125 ft
Middletown (21769) — 107 wells, median 200 ft
Myersville (21773) — 103 wells, median 175 ft
Sabillasville (21780) — 71 wells, median 127 ft
Unionville (21792) — 64 wells, median 121 ft
Rocky Ridge (21778) — 50 wells, median 155 ft

Method: medians computed from USGS NWIS records (USGS NWIS groundwater inventory, water-supply wells only (monitoring wells, test holes and injection wells excluded), and only wells carrying a measured depth). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.