Maryland Well Data › Carroll County

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

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

✓ 574 USGS NWIS records · verified 2026-09-22

160 ftmedian well depth

100 ft–250 fttypical depth range

—median depth since 2016

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How deep are wells in Carroll County, Maryland?

The median drilled well depth in Carroll County is 160 ft, based on 574 wells with recorded depths in the state USGS NWIS database. Half of all wells fall between 100 ft and 250 ft; 90% are shallower than 340 ft. Wells drilled since 2016 have a median depth of —.

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

Applying published per-foot rates to the local median depth of 160 ft: drilling and casing alone typically runs $4,000–$10,400; a complete system including pump, pressure tank, and hookup typically runs $9,600–$16,000. Actual quotes depend on site access, geology, and casing requirements.

Drilled depth distribution

0–50 ft 14 50–100 ft 105 100–150 ft 133 150–200 ft 96 200–300 ft 114 300–400 ft 76 400–600 ft 28 600+ ft 8

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Well records by ZIP code in Carroll County

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

Westminster (21157) — 76 wells, median 278 ft
Westminster (21158) — 74 wells, median 173 ft
Taneytown (21787) — 63 wells, median 170 ft
New Windsor (21776) — 61 wells, median 150 ft
Hampstead (21074) — 54 wells, median 150 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.