Tennessee Well Data › Johnson County
Johnson County, Tennessee: well depth, water level & drilling cost
✓ 2,154 TDEC records · verified 2026-09-28
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How deep are wells in Johnson County, Tennessee?
The median drilled well depth in Johnson County is 265 ft, based on 2,138 wells with recorded depths in the state TDEC database. Half of all wells fall between 165 ft and 400 ft; 90% are shallower than 505 ft. Wells drilled since 2016 have a median depth of 345 ft.
How much does it cost to drill a well in Johnson County?
Applying published per-foot rates to the local median depth of 345 ft: drilling and casing alone typically runs $8,625–$22,425; a complete system including pump, pressure tank, and hookup typically runs $20,700–$34,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Johnson County?
The median static water level is 50 ft below ground surface (middle half of wells: 25 ft–100 ft), from 1,982 measurements.
How much water do wells in Johnson County produce?
The median tested yield is 12 gpm (middle half: 5 gpm–30 gpm), from 2,078 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
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Well records by ZIP code in Johnson County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Trade (37691) — 574 wells, median 304 ft
- Butler (37640) — 510 wells, median 303 ft
- Mountain City (37683) — 479 wells, median 300 ft
- Shady Valley (37688) — 344 wells, median 245 ft
- Laurel Bloomery (37680) — 171 wells, median 250 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.