Colorado Well Data › Jefferson County
Jefferson County, Colorado: well depth, water level & drilling cost
✓ 39,841 DWR records · verified 2026-10-12
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How deep are wells in Jefferson County, Colorado?
The median drilled well depth in Jefferson County is 200 ft, based on 26,819 wells with recorded depths in the state DWR database. Half of all wells fall between 50 ft and 410 ft; 90% are shallower than 640 ft. Wells drilled since 2016 have a median depth of 135 ft.
How much does it cost to drill a well in Jefferson County?
Applying published per-foot rates to the local median depth of 135 ft: drilling and casing alone typically runs $3,375–$8,775; a complete system including pump, pressure tank, and hookup typically runs $8,100–$13,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Jefferson County?
The median static water level is 75 ft below ground surface (middle half of wells: 24 ft–150 ft), from 1,365 measurements.
How much water do wells in Jefferson County produce?
The median tested yield is 6 gpm (middle half: 3 gpm–10 gpm), from 9,015 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Jefferson 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 |
|---|---|
| James Drilling | 502 |
| Living Water Systems Inc. | 179 |
| Holland And Sons Water Well Drilling | 53 |
| Kelley Dewatering And Construction Company | 24 |
| Holland/McMullen Water Well Drilling | 19 |
| Arrow Drilling | 19 |
| C R Smith Drilling Inc | 13 |
| Aspen Drilling Company Inc | 8 |
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Well records by ZIP code in Jefferson County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Evergreen (80439) — 7,109 wells, median 302 ft
- Conifer (80433) — 5,833 wells, median 302 ft
- Pine (80470) — 3,289 wells, median 321 ft
- Littleton (80162) — 3,053 wells, median 325 ft
- Indian Hills (80454) — 2,171 wells, median 306 ft
- Arvada (80007) — 2,054 wells, median 53 ft
- Littleton (80125) — 1,520 wells, median 50 ft
- Golden (80402) — 1,221 wells, median 67 ft
- Eldorado Springs (80025) — 1,175 wells, median 250 ft
- Denver (80215) — 1,166 wells, median 30 ft
- Denver (80226) — 1,026 wells, median 37 ft
- Wheat Ridge (80033) — 1,009 wells, median 30 ft
- Kittredge (80457) — 995 wells, median 403 ft
- Arvada (80004) — 927 wells, median 50 ft
- Golden (80403) — 874 wells, median 345 ft
- Idledale (80453) — 784 wells, median 300 ft
- Golden (80401) — 767 wells, median 53 ft
- Denver (80214) — 702 wells, median 19 ft
- Arvada (80001) — 650 wells, median 28 ft
- Buffalo Creek (80425) — 649 wells, median 283 ft
- Arvada (80002) — 523 wells, median 26 ft
- Wheat Ridge (80034) — 491 wells, median 35 ft
- Littleton (80128) — 487 wells, median 39 ft
- Morrison (80465) — 457 wells, median 340 ft
- Arvada (80005) — 451 wells, median 120 ft
- Denver (80232) — 424 wells, median 25 ft
- Denver (80227) — 376 wells, median 214 ft
- Denver (80225) — 372 wells, median 29 ft
- Arvada (80003) — 366 wells, median 25 ft
- Littleton (80123) — 348 wells, median 45 ft
- Broomfield (80021) — 329 wells, median 73 ft
- Denver (80235) — 282 wells, median 60 ft
- Littleton (80127) — 246 wells, median 400 ft
- Denver (80228) — 143 wells, median 45 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.