Mississippi Well Data › Clay County

Clay County, Mississippi: well depth, owners & drilling cost

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

✓ 622 USGS NWIS records · verified 2026-08-27

440 ftmedian well depth

340 ft–630 fttypical depth range

—median depth since 2016

How deep are wells in Clay County, Mississippi?

The median drilled well depth in Clay County is 440 ft, based on 622 wells with recorded depths in the state USGS NWIS database. Half of all wells fall between 340 ft and 630 ft; 90% are shallower than 844 ft. Wells drilled since 2016 have a median depth of —.

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

Applying published per-foot rates to the local median depth of 440 ft: drilling and casing alone typically runs $11,000–$28,600; a complete system including pump, pressure tank, and hookup typically runs $26,400–$44,000. Actual quotes depend on site access, geology, and casing requirements.

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Drilled depth distribution

0–50 ft 5 50–100 ft 4 100–150 ft 2 150–200 ft 10 200–300 ft 62 300–400 ft 128 400–600 ft 211 600+ ft 200

Looking at a specific property in Clay County?

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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.