Research · updated 2026-08-26 · download the county-level CSV
Utah Well Depth & Drilling Cost Index
Drilling a private water well in Utah means paying by the foot — so the two questions every well owner asks are how deep and how much. We computed both for all 22 counties with enough records to be reliable, from 3,647 official Utah DWRi well records.
Statewide, the median well reaches 195 ft, and a complete system — drilling, casing, pump, pressure tank, and hookup — typically runs $14,940–$24,900. But the county spread is large:
Deepest counties to drill in Utah
| County | Median depth | Typical depth range | Complete system |
|---|---|---|---|
| Iron | 350 ft | 276 ft–456 ft | $21,000–$35,000 |
| Washington | 228 ft | 141 ft–318 ft | $42,300–$70,500 |
| Salt Lake | 222 ft | 160 ft–410 ft | $17,220–$28,700 |
| Millard | 220 ft | 135 ft–360 ft | $14,160–$23,600 |
| Summit | 210 ft | 128 ft–337 ft | $14,400–$24,000 |
Most expensive counties to drill in Utah
| County | Complete system | Drilling & casing only | Median depth |
|---|---|---|---|
| Washington | $42,300–$70,500 | $17,625–$45,825 | 228 ft |
| Sevier | $29,400–$49,000 | $12,250–$31,850 | 149 ft |
| Garfield | $21,120–$35,200 | $8,800–$22,880 | 112 ft |
| Iron | $21,000–$35,000 | $8,750–$22,750 | 350 ft |
| Salt Lake | $17,220–$28,700 | $7,175–$18,655 | 222 ft |
Download the full county table (CSV)
How to read this
- Depth is measured; cost is modeled. Depths are the median of recorded drilled depths per county. Cost applies published Utah per-foot drilling rates to that local median depth — a planning estimate, not a quote. Actual bids vary with geology, casing, site access, and water depth.
- Counties below 30 records are excluded so a thin sample can't produce a misleading superlative.
- Records are drilling events from the state database, which include some replacement and abandoned wells; deeper counties reflect real local geology (bedrock, aquifer depth).
Sources & methodology
- Utah well records: Utah DWRi (refreshed weekly; see our general methodology).
- Percentiles (p25/median/p75) computed per county; cost from published per-foot rate ranges applied to the local median depth.
The county table is free to use with attribution to Utah Well Data (utahwelldata.com). For a specific county, a custom cut, or the underlying records, email — usually same-day.
Look up any Utah address free — recorded wells nearby, their depths, and water levels from the official state database.
Check an address