Michigan Well Data › Washtenaw County
Washtenaw County, Michigan: well depth, water level & drilling cost
✓ 31,773 Wellogic records · verified 2026-06-29
How deep are wells in Washtenaw County, Michigan?
The median drilled well depth in Washtenaw County is 92 ft, based on 31,696 wells with recorded depths in the state Wellogic database. Half of all wells fall between 67 ft and 130 ft; 90% are shallower than 172 ft. Wells drilled since 2016 have a median depth of 98 ft.
How much does it cost to drill a well in Washtenaw County?
Applying published per-foot rates to the local median depth of 98 ft: drilling and casing alone typically runs $2,450–$6,370; a complete system including pump, pressure tank, and hookup typically runs $5,880–$9,800. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Washtenaw County?
The median static water level is 30 ft below ground surface (middle half of wells: 16 ft–47 ft), from 30,955 measurements.
How much water do wells in Washtenaw County produce?
The median tested yield is 15 gpm (middle half: 12 gpm–26 gpm), from 26,719 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Washtenaw County?
Drillers by number of wells completed in this county since 2016, per filed well records (EGLE Wellogic); shown by registered well-driller number.
| Driller | Wells since 2016 |
|---|---|
| Lic. #81-2014 | 2,615 |
| Lic. #81-2591 | 204 |
| Lic. #47-2428 | 179 |
| Lic. #46-0551 | 129 |
| Lic. #47-1924 | 112 |
| Lic. #47-1861 | 98 |
| Lic. #47-2284 | 97 |
| Lic. #78-1607 | 50 |
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Median depth, water level, and yield for each ZIP code with recorded wells.
- Dexter (48130) — 3,646 wells, median 87 ft
- Saline (48176) — 3,567 wells, median 96 ft
- Ann Arbor (48103) — 3,180 wells, median 102 ft
- Whitmore Lake (48189) — 3,063 wells, median 74 ft
- Chelsea (48118) — 2,939 wells, median 80 ft
- Milan (48160) — 2,318 wells, median 110 ft
- Ann Arbor (48105) — 2,234 wells, median 111 ft
- Manchester (48158) — 1,924 wells, median 99 ft
- Ypsilanti (48197) — 1,399 wells, median 73 ft
- Plymouth (48170) — 866 wells, median 97 ft
- Ann Arbor (48108) — 583 wells, median 141 ft
- Ypsilanti (48198) — 532 wells, median 97 ft
- Willis (48191) — 445 wells, median 100 ft
- Ann Arbor (48104) — 255 wells, median 110 ft
- Salem (48175) — 63 wells, median 100 ft
Method: medians computed from Wellogic records (water-supply wells only (household, irrigation, industrial, Type I/II/III public supply) — heat-pump, test and unclassified wells 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.