⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Yakima County › Zillah (98953)

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

✓ 614 Ecology records · Yakima County

205 ftmedian well depth
154 ft–397 fttypical depth range
109 ftmedian static water level
60 gpmmedian yield (112 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 205 ft, based on 611 wells with recorded depths in the state Ecology database. Half fall between 154 ft and 397 ft; 90% are shallower than 629 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 205 ft: drilling and casing alone typically runs $5,125–$13,325; a complete system including pump, pressure tank, and hookup typically runs $12,300–$20,500. 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 109 ft below ground surface (middle half of wells: 73 ft–192 ft), from 143 measurements.

Drilled depth distribution

0–50 ft 10 50–100 ft 20 100–150 ft 109 150–200 ft 139 200–300 ft 115 300–400 ft 66 400–600 ft 82 600+ 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.