Tennessee Well Data › Union County
Union County, Tennessee: well depth, water level & drilling cost
✓ 3,784 TDEC records · verified 2026-09-28
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How deep are wells in Union County, Tennessee?
The median drilled well depth in Union County is 247 ft, based on 3,527 wells with recorded depths in the state TDEC database. Half of all wells fall between 165 ft and 380 ft; 90% are shallower than 500 ft. Wells drilled since 2016 have a median depth of 340 ft.
How much does it cost to drill a well in Union County?
Applying published per-foot rates to the local median depth of 340 ft: drilling and casing alone typically runs $8,500–$22,100; a complete system including pump, pressure tank, and hookup typically runs $20,400–$34,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Union County?
The median static water level is 80 ft below ground surface (middle half of wells: 40 ft–130 ft), from 2,836 measurements.
How much water do wells in Union County produce?
The median tested yield is 5 gpm (middle half: 2 gpm–10 gpm), from 3,224 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
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Well records by ZIP code in Union County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Sharps Chapel (37866) — 728 wells, median 310 ft
- Maynardville (37807) — 429 wells, median 250 ft
- Luttrell (37779) — 273 wells, median 210 ft
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.