⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Benton County › Benton City (99320)

Benton City, WA (99320): well depth, water level & drilling cost

✓ 1,210 Ecology records · Benton County

200 ftmedian well depth
120 ft–340 fttypical depth range
114 ftmedian static water level
30 gpmmedian yield (217 tests)

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How deep are wells in and around Benton City (99320), Washington?

The median drilled well depth in and around Benton City (99320) is 200 ft, based on 1,209 wells with recorded depths in the state Ecology database. Half fall between 120 ft and 340 ft; 90% are shallower than 500 ft.

How much does it cost to drill a well in and around Benton City (99320)?

Applying published per-foot rates to the local median depth of 223 ft: drilling and casing alone typically runs $5,575–$14,495; a complete system including pump, pressure tank, and hookup typically runs $13,380–$22,300. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Benton City (99320)?

The median static water level is 114 ft below ground surface (middle half of wells: 50 ft–217 ft), from 318 measurements.

Drilled depth distribution

0–50 ft 57 50–100 ft 137 100–150 ft 244 150–200 ft 166 200–300 ft 207 300–400 ft 157 400–600 ft 181 600+ ft 60
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Part of Benton 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.