⟁ Tennessee Well Data field records · 2026 survey

Tennessee Well Data › Mcnairy County

Mcnairy County, Tennessee: well depth, water level & drilling cost

✓ 1,778 TDEC records · verified 2026-09-28

130 ftmedian well depth
100 ft–185 fttypical depth range
70 ftmedian static water level
10 gpmmedian yield (1,147 tests)

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How deep are wells in Mcnairy County, Tennessee?

The median drilled well depth in Mcnairy County is 130 ft, based on 1,769 wells with recorded depths in the state TDEC database. Half of all wells fall between 100 ft and 185 ft; 90% are shallower than 380 ft. Wells drilled since 2016 have a median depth of 130 ft.

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

Applying published per-foot rates to the local median depth of 130 ft: drilling and casing alone typically runs $3,250–$8,450; a complete system including pump, pressure tank, and hookup typically runs $7,800–$13,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Mcnairy County?

The median static water level is 70 ft below ground surface (middle half of wells: 45 ft–100 ft), from 1,605 measurements.

How much water do wells in Mcnairy County produce?

The median tested yield is 10 gpm (middle half: 10 gpm–12 gpm), from 1,147 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 33 50–100 ft 367 100–150 ft 708 150–200 ft 244 200–300 ft 105 300–400 ft 157 400–600 ft 155 600+ ft 0
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Well records by ZIP code in Mcnairy County

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

Method: medians computed from TDEC records (TDEC reported water wells; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.