⟁ Oklahoma Well Data field records · 2026 survey

Oklahoma Well Data › Tillman County

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

✓ 1,569 OWRB records · verified 2026-08-24

50 ftmedian well depth
40 ft–59 fttypical depth range
20 ftmedian static water level
250 gpmmedian yield (1,354 tests)

How deep are wells in Tillman County, Oklahoma?

The median drilled well depth in Tillman County is 50 ft, based on 1,544 wells with recorded depths in the state OWRB database. Half of all wells fall between 40 ft and 59 ft; 90% are shallower than 65 ft. Wells drilled since 2016 have a median depth of 53 ft.

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

Applying published per-foot rates to the local median depth of 53 ft: drilling and casing alone typically runs $1,325–$3,445; a complete system including pump, pressure tank, and hookup typically runs $3,180–$5,300. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Tillman County?

The median static water level is 20 ft below ground surface (middle half of wells: 15 ft–27 ft), from 1,152 measurements.

How much water do wells in Tillman County produce?

The median tested yield is 250 gpm (middle half: 100 gpm–416 gpm), from 1,354 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 714 50–100 ft 825 100–150 ft 3 150–200 ft 1 200–300 ft 1 300–400 ft 0 400–600 ft 0 600+ ft 0
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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.