Washington Well Data › Yakima County

Yakima County, Washington: well depth, water level & drilling cost

Name: Yakima County, Washington water well statistics
Creator: Washington Well Data
License: https://creativecommons.org/licenses/by/4.0/

✓ 16,418 Ecology records · verified 2026-10-02

165 ftmedian well depth

100 ft–270 fttypical depth range

76 ftmedian static water level

50 gpmmedian yield (2,003 tests)

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How deep are wells in Yakima County, Washington?

The median drilled well depth in Yakima County is 165 ft, based on 16,384 wells with recorded depths in the state Ecology database. Half of all wells fall between 100 ft and 270 ft; 90% are shallower than 425 ft. Wells drilled since 2016 have a median depth of 215 ft.

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

Applying published per-foot rates to the local median depth of 215 ft: drilling and casing alone typically runs $5,375–$13,975; a complete system including pump, pressure tank, and hookup typically runs $12,900–$21,500. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Yakima County?

The median static water level is 76 ft below ground surface (middle half of wells: 27 ft–171 ft), from 2,310 measurements.

How much water do wells in Yakima County produce?

The median tested yield is 50 gpm (middle half: 30 gpm–75 gpm), from 2,003 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 761 50–100 ft 3,054 100–150 ft 3,368 150–200 ft 2,483 200–300 ft 3,197 300–400 ft 1,555 400–600 ft 1,335 600+ ft 631

Who drills wells in Yakima County?

Licensed drillers by number of wells completed in this county since 2016, per filed well reports (license roster: Washington Department of Ecology).

Driller	Wells since 2016
Derrick Rank	317
Thomas Mcguire	280
Gary Lydin	252
Justin Wamsley	250
Michael Robinson	173
Craig Wamsley	55
Lyle Amos	33
Kevin Lydin	28

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Well records by ZIP code in Yakima County

Median depth, water level, and yield for each ZIP code with recorded wells.

Selah (98942) — 2,859 wells, median 202 ft
Yakima (98904) — 1,366 wells, median 176 ft
Moxee (98936) — 1,335 wells, median 210 ft
Yakima (98903) — 940 wells, median 227 ft
Tieton (98947) — 828 wells, median 230 ft
Yakima (98901) — 801 wells, median 119 ft
Yakima (98902) — 799 wells, median 113 ft
Sunnyside (98944) — 799 wells, median 145 ft
Yakima (98908) — 795 wells, median 230 ft
Yakima (98907) — 791 wells, median 105 ft
Grandview (98930) — 714 wells, median 144 ft
Cowiche (98923) — 644 wells, median 163 ft
Zillah (98953) — 612 wells, median 206 ft
Naches (98937) — 555 wells, median 98 ft
Wapato (98951) — 532 wells, median 85 ft
Outlook (98938) — 381 wells, median 200 ft
Granger (98932) — 315 wells, median 157 ft
Mabton (98935) — 299 wells, median 133 ft
Toppenish (98948) — 280 wells, median 85 ft
Parker (98939) — 233 wells, median 130 ft
Buena (98921) — 216 wells, median 176 ft
Harrah (98933) — 156 wells, median 98 ft
White Swan (98952) — 132 wells, median 178 ft
Brownstown (98920) — 87 wells, median 135 ft

Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions excluded; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.