⟁ Oklahoma Well Data field records · 2026 survey

Oklahoma Well Data › Johnston County

Johnston County, Oklahoma: well depth, water level & drilling cost

✓ 436 OWRB records · verified 2026-08-24

173 ftmedian well depth
100 ft–250 fttypical depth range
90 ftmedian static water level
15 gpmmedian yield (292 tests)

How deep are wells in Johnston County, Oklahoma?

The median drilled well depth in Johnston County is 173 ft, based on 380 wells with recorded depths in the state OWRB database. Half of all wells fall between 100 ft and 250 ft; 90% are shallower than 300 ft. Wells drilled since 2016 have a median depth of 200 ft.

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

Applying published per-foot rates to the local median depth of 200 ft: drilling and casing alone typically runs $5,000–$13,000; a complete system including pump, pressure tank, and hookup typically runs $12,000–$20,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Johnston County?

The median static water level is 90 ft below ground surface (middle half of wells: 40 ft–177 ft), from 236 measurements.

How much water do wells in Johnston County produce?

The median tested yield is 15 gpm (middle half: 10 gpm–30 gpm), from 292 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 36 50–100 ft 48 100–150 ft 70 150–200 ft 56 200–300 ft 111 300–400 ft 43 400–600 ft 9 600+ ft 7
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Method: medians computed from OWRB records (OWRB reported well logs, water wells only (water-quality, monitoring, site-assessment and heat-exchange holes excluded); depths 0-5,000 ft. Water-level figures are OWRB's reported depth to first water). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.