Mississippi Well Data › Harrison County

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

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

✓ 9,562 MDEQ + USGS records · verified 2026-10-12

378 ftmedian well depth

242 ft–525 fttypical depth range

—median depth since 2016

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How deep are wells in Harrison County, Mississippi?

The median drilled well depth in Harrison County is 378 ft, based on 9,433 wells with recorded depths in the state MDEQ + USGS database. Half of all wells fall between 242 ft and 525 ft; 90% are shallower than 700 ft. Wells drilled since 2016 have a median depth of —.

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

Applying published per-foot rates to the local median depth of 378 ft: drilling and casing alone typically runs $9,450–$24,570; a complete system including pump, pressure tank, and hookup typically runs $22,680–$37,800. Actual quotes depend on site access, geology, and casing requirements.

Drilled depth distribution

0–50 ft 344 50–100 ft 316 100–150 ft 348 150–200 ft 536 200–300 ft 1,710 300–400 ft 1,703 400–600 ft 2,886 600+ ft 1,590

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Well records by ZIP code in Harrison County

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

Biloxi (39532) — 1,872 wells, median 365 ft
Saucier (39574) — 1,727 wells, median 280 ft
Gulfport (39503) — 1,641 wells, median 423 ft
Pass Christian (39571) — 1,508 wells, median 400 ft
Long Beach (39560) — 988 wells, median 470 ft
Gulfport (39507) — 392 wells, median 292 ft
Biloxi (39531) — 288 wells, median 464 ft
Gulfport (39502) — 221 wells, median 400 ft
Gulfport (39501) — 209 wells, median 472 ft
Biloxi (39533) — 76 wells, median 885 ft
Biloxi (39530) — 62 wells, median 880 ft
Biloxi (39534) — 59 wells, median 618 ft

Method: medians computed from MDEQ + USGS 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.