Colorado Well Data › Costilla County
Costilla County, Colorado: well depth, water level & drilling cost
✓ 3,855 DWR records · verified 2026-09-22
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How deep are wells in Costilla County, Colorado?
The median drilled well depth in Costilla County is 170 ft, based on 2,607 wells with recorded depths in the state DWR database. Half of all wells fall between 100 ft and 280 ft; 90% are shallower than 400 ft. Wells drilled since 2016 have a median depth of 165 ft.
How much does it cost to drill a well in Costilla County?
Applying published per-foot rates to the local median depth of 165 ft: drilling and casing alone typically runs $4,125–$10,725; a complete system including pump, pressure tank, and hookup typically runs $9,900–$16,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Costilla County?
The median static water level is 80 ft below ground surface (middle half of wells: 45 ft–150 ft), from 552 measurements.
How much water do wells in Costilla County produce?
The median tested yield is 10 gpm (middle half: 7 gpm–15 gpm), from 1,101 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Costilla County?
Companies by number of wells permitted in this county, per well construction reports filed with the Colorado Division of Water Resources. Permits recorded without a licensed driller (owner-built, or approved by a professional engineer) are excluded.
| Driller | Wells since 2016 |
|---|---|
| Heersink Drilling | 222 |
| Ojo Spring Drilling & Well Service | 129 |
| Valley Pump Company | 43 |
| Sharpe Drilling Company | 33 |
| Weber Water Well Drilling & Pump Service LLC | 32 |
| Cooper Drilling LLC | 9 |
| Boday Well Drilling | 7 |
| Rocky Mountain Waterworks LLC | 7 |
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Well records by ZIP code in Costilla County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Blanca (81123) — 1,089 wells, median 129 ft
- Fort Garland (81133) — 1,088 wells, median 210 ft
- Chama (81126) — 685 wells, median 68 ft
- San Luis (81152) — 333 wells, median 200 ft
- Jaroso (81138) — 266 wells, median 226 ft
Method: medians computed from DWR records (DWR well permits, applications that were denied, withdrawn, cancelled or are still pending excluded; depths 0–5,000 ft).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.