Maryland Well Data › Harford County
Harford County, Maryland: well depth, owners & drilling cost
✓ 2,018 USGS NWIS records · verified 2026-09-22
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How deep are wells in Harford County, Maryland?
The median drilled well depth in Harford County is 98 ft, based on 2,018 wells with recorded depths in the state USGS NWIS database. Half of all wells fall between 55 ft and 150 ft; 90% are shallower than 206 ft. Wells drilled since 2016 have a median depth of 9 ft.
How much does it cost to drill a well in Harford County?
Applying published per-foot rates to the local median depth of 98 ft: drilling and casing alone typically runs $2,450–$6,370; a complete system including pump, pressure tank, and hookup typically runs $5,880–$9,800. Actual quotes depend on site access, geology, and casing requirements.
Drilled depth distribution
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Well records by ZIP code in Harford County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Gunpowder (21010) — 329 wells, median 20 ft
- Fallston (21047) — 226 wells, median 158 ft
- Perryman (21130) — 173 wells, median 80 ft
- Havre De Grace (21078) — 155 wells, median 85 ft
- Churchville (21028) — 144 wells, median 91 ft
- Jarrettsville (21084) — 137 wells, median 147 ft
- Benson (21018) — 115 wells, median 107 ft
- Bel Air (21015) — 85 wells, median 123 ft
- Joppa (21085) — 82 wells, median 142 ft
- Aberdeen (21001) — 65 wells, median 72 ft
- Belcamp (21017) — 63 wells, median 104 ft
- Forest Hill (21050) — 59 wells, median 125 ft
- Bel Air (21014) — 57 wells, median 75 ft
- Baldwin (21013) — 52 wells, median 153 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.