⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Yakima County › Zillah (98953)

Zillah, WA (98953): well depth, water level & drilling cost

✓ 612 Ecology records · Yakima County

206 ftmedian well depth
155 ft–400 fttypical depth range
108 ftmedian static water level
60 gpmmedian yield (110 tests)

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How deep are wells in and around Zillah (98953), Washington?

The median drilled well depth in and around Zillah (98953) is 206 ft, based on 609 wells with recorded depths in the state Ecology database. Half fall between 155 ft and 400 ft; 90% are shallower than 630 ft.

How much does it cost to drill a well in and around Zillah (98953)?

Applying published per-foot rates to the local median depth of 206 ft: drilling and casing alone typically runs $5,150–$13,390; a complete system including pump, pressure tank, and hookup typically runs $12,360–$20,600. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Zillah (98953)?

The median static water level is 108 ft below ground surface (middle half of wells: 71 ft–189 ft), from 142 measurements.

Drilled depth distribution

0–50 ft 10 50–100 ft 20 100–150 ft 107 150–200 ft 139 200–300 ft 114 300–400 ft 66 400–600 ft 83 600+ ft 70
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Part of Yakima County well records.

Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions excluded; depths 0–5,000 ft), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.