Key Takeaways
Real well drilling cost figures from USDA schedules, why per-foot pricing misleads, how yield drives price separately from depth, and who owns the water.
- USDA conservation practice schedules put drilled water wells between roughly $3,700 and $22,900, with the spread driven as much by casing width as by depth.
- The cost per foot falls sharply as a well gets deeper, from about $79 per foot at 50 feet to about $18 per foot at 400 feet in one published state schedule.
- A 12-foot dug well in that same schedule costs more than a 400-foot drilled well, because diameter and excavation method outweigh depth at the shallow end.
- Casing width adds roughly half again to the cost of an identical depth, and width is set by the yield you need rather than by the geology you hit.
- Owning the land does not automatically mean owning the right to pump the water, and in an over-appropriated basin a permit can require court-approved replacement water.
A well is the single largest unknown in the cost of making raw land livable. The parcel price is fixed before you sign. The well is a hole of unknown depth into rock of unknown character, priced by the foot, and you commit to it before anyone can tell you how deep it goes.
Which is why most published well drilling cost figures are close to useless. A per-foot number describes one depth in one formation. Depth matters less than you would guess, width matters more, and in parts of the country the permit matters more than either.
Written for someone buying rural or vacant land who will need their own water supply. Groundwater law and well permitting are state and county matters and they vary enormously, so this is general information rather than engineering or legal advice, and your state water agency is the authority on your parcel.
Quick verdict: budget from a published schedule rather than a per-foot quote, and price the well as three separate things: the hole, the equipment that lifts water out of it, and the legal right to take that water. If you are buying in a western state, check the water right before you check anything else, because it is the only one of the three that money may not solve.
What does it cost to drill a well?
Between roughly $3,700 and $22,900 for a drilled well, based on published government cost schedules. The USDA Natural Resources Conservation Service prices conservation practice 642, Water Well, by scenario and by state, and Connecticut’s schedule is unusually complete with seven scenarios.
| Scenario | Depth | Casing | Cost |
| Shallow Well | 50 ft | 4 in | $3,926.90 |
| High Volume Shallow Well | 75 ft | 8 in | $6,636.96 |
| Typical Well | 400 ft | 4 to 6 in | $7,007.04 |
| High Volume Typical Well | 400 ft | 8 in | $10,939.12 |
| Dug Well | 12 ft | 4 ft dia | $11,136.10 |
| Deep Well | 800 ft | 4 to 6 in | $14,875.37 |
| High Volume Deep Well | 800 ft | 8 in | $22,894.40 |
One caveat. NRCS figures are cost-share reimbursement rates for conservation work, not contractor invoices, built from that state’s own material and labor costs. Treat them as a sourced reference point rather than a quote, and notice what they carry that no contractor range does: the depth and casing width each scenario assumes.
Why does a deeper well cost less per foot?
Because a large share of the cost is fixed before the bit turns, and spreading it over more footage makes every foot cheaper. In the Connecticut schedule the 50-foot well works out near $79 per foot while the 400-foot well works out near $18. Same state, same practice, same year.
Iowa’s schedule states the per-foot rates directly and agrees: $36.75 per linear foot for a 100-foot well, $28.65 for a 300-foot well. Deeper, and cheaper by the foot.
Mobilization is the reason. Getting a rig onto the parcel, setting up and demobilizing costs the same whether the hole ends at 80 feet or 500. So does the wellhead, the sanitary seal and the paperwork.
The consequence is practical. A per-foot quote is only meaningful alongside a depth, and comparing two drillers on per-foot price alone compares nothing unless both quote the same target depth on the same parcel.
Does casing width cost more than depth?
Often, yes, and this is the part almost nobody prices correctly. In the Connecticut schedule, two 400-foot wells differ only by casing: $7,007.04 at 4 to 6 inches, $10,939.12 at 8 inches. That is 56 percent more for an identical depth.
The pattern holds at the other depth too. At 800 feet the narrow well is $14,875.37 and the wide one is $22,894.40, about 54 percent more. Iowa shows the same effect at 100 feet, where 6-inch casing runs $36.75 per foot against $47.43 for 12-inch.
Take the extreme case, because it makes the point better than any percentage. Iowa’s 48-foot large-diameter well costs $9,371.95 while its 300-foot deep well costs $8,594.47. The shallow well costs more. Anyone preparing to buy vacant land that will need its own water should carry that one fact: depth is a cost driver, not the cost driver.
What decides how deep you have to drill?
Geology, and you do not get to choose it. The depth to a usable water-bearing formation is a property of the ground under that specific parcel, which is why the same driller charges wildly different totals across one county.
The best evidence before drilling is local. Neighboring well records, which many states publish, and the driller’s history in that township beat any national figure, because both describe the formation you will actually hit.
This belongs with the other items you establish before committing, alongside access, soil and title. Knowing what to look for when buying rural land means knowing which questions have local answers and which do not, and well depth is squarely in the first group.
The scale of the variation is worth grasping. Within Texas alone, Gulf Coast pricing and Trans-Pecos pricing are not in the same range, because the aquifer changes across the state and the price follows it. State averages are already too coarse. National ones are noise.
What is yield, and why does it matter more than depth?
Yield is how much water the well produces, measured in gallons per minute, and it is what you are actually buying. Depth is what you pay for. Those are not the same thing, and they are not correlated the way people expect.
A 600-foot well can produce one gallon per minute and a 120-foot well can produce thirty. Yield is a function of the formation’s ability to transmit water into the borehole, not of how far down the borehole goes. This is why the schedules above carry separate “high volume” scenarios at every depth: more yield needs wider casing, a larger pump and more power, and that is a cost line independent of footage.
Low yield is the failure mode that costs most after the fact. Remedies exist, including hydrofracturing to open fractures in bedrock and storage tanks to buffer a slow well against peak demand, and each adds cost to a well that already drilled fine.
Anyone buying land to build a house should ask the local health department what minimum yield it requires before it will approve the water supply, because that number, not the driller’s, decides whether the well is finished.
Do you pay if the hole comes up dry?
Usually yes, and this is the contract term to read before you sign it. Most drillers are paid for footage drilled and materials installed, not for water delivered, because the driller cannot control what the formation holds.
That allocation is defensible and expensive. A dry or very low-yield hole still consumed the rig, the crew, the casing and the days, and in many contracts you owe for all of it plus the cost of properly abandoning the hole.
Three questions reduce the exposure. What does the contract say happens at a given depth if no water is found. Is there a depth cap after which drilling stops for a decision. And what has this driller’s typical depth and success rate been within a few miles.
On an unpriced parcel this is leverage rather than trivia. A seller who cannot say what the water situation is has left you carrying a real and quantifiable risk, and that is a reasonable basis to negotiate land price before you take it on.
Do you actually own the water under your land?
Not necessarily, and in the western United States frequently not. Surface ownership and the right to withdraw groundwater are administered separately in prior-appropriation states, and the permit is the thing that decides what you may pump and for what.
Colorado publishes the boundary precisely. Under state guidance, an exempt well covers ordinary household purposes, fire protection and fire-fighting, watering poultry, domestic animals and livestock on farms and ranches, and the irrigation of not over one acre of home gardens and lawns.
Read what that excludes. Irrigating more than an acre, commercial use, filling a pond, or supporting a herd beyond what grazing sustains all fall outside the exemption, and each needs a different permit. The rule is not about how much water is down there. It is about what the state already allocated to other users, most of whom hold older rights than yours.
So the order of operations on a western parcel runs backwards from what buyers assume. Check what well permit the parcel can obtain, then decide what the land can be used for.
What happens when a basin is over-appropriated?
New non-exempt wells stop being routine and start requiring replacement water. When Colorado’s State Engineer declared part of the White River Basin over-appropriated, the state stated that new, non-exempt well permits above the Taylor Draw Power Conduit will require an augmentation plan.
The state defines an augmentation plan as “a court-approved plan that would allow the water user to pump groundwater by replacing that water with an equivalent amount from another source.” Two costs sit inside that sentence: a water court proceeding, and an ongoing obligation to supply replacement water for as long as you pump.
That combination can exceed the cost of drilling by a wide margin, and it is invisible in every per-foot table published on the subject. It is also not a problem money reliably solves, because the replacement water has to come from somewhere and somebody has to part with it.
Ask the screening question early. Is this parcel in a designated or over-appropriated basin, and what class of well permit has the state issued nearby recently.
Is your well water regulated by anyone?
No, and most owners are surprised by it. EPA states that the quality and safety of drinking water from private domestic wells are not regulated by the federal government under the Safe Drinking Water Act, nor by most state governments and laws, and that private well owners are responsible for delivering safe drinking water to their households.
The scale is not marginal. EPA puts private well reliance at around 15 percent of the population, over 43 million people, and cites a USGS finding that water from about one in five wells contained at least one contaminant above a human-health benchmark.
So the federal drinking water standards most people assume protect them stop at the property line of anyone on a private well. There is no utility running compliance monitoring, no violation notice, and no one but the owner responsible for finding out.
Budget accordingly. Initial testing at completion, periodic retesting, and treatment if the results require it are permanent costs of the water supply, not optional extras, and they belong in the figure alongside the drilling.
What costs are not the drilling?
The pump, the pressure tank, the electrical supply and the line from the well to the building, and together they are rarely trivial. The hole is the headline number. The system that moves water from the hole into a tap is a separate job with separate parts.
Depth drives this too, in the direction you would expect. A deeper well needs a pump with more lift capacity, more drop pipe, more wire, and more power to run it, which is part of why the NRCS high-volume deep scenario reaches $22,894.40 while the shallow narrow one sits near $3,900.
Power is the line most often forgotten on undeveloped ground. If the parcel has no utility service at the well location, the cost of getting electricity there, or of sizing a solar and battery system that can run a submersible pump, lands on the water budget rather than the building budget. That is one reason off grid land for sale listings deserve a harder look at the water plan than serviced parcels do.
Add the permit fee, the well log filing, the disinfection and the initial test, and the working assumption should be that a finished, tested water supply costs meaningfully more than the quoted drilling total.
Should a parcel with no well scare you off?
No, but it should change what you pay and what you verify first. An undrilled parcel carries a real unknown, and the correct response is to price the unknown rather than to assume it away or to walk from it reflexively.
Do three things before deciding. Pull neighboring well records for depth and yield. Ask the state or county what class of well permit the parcel can obtain. And get a quote from a driller who has worked that township, stated as a depth range rather than a per-foot rate.
Walk when the permit class does not support your intended use, when an augmentation requirement applies and replacement water is not obtainable, or when local records show depths and yields that put the finished supply out of proportion to the land value.
Everything else is a number, and numbers are negotiable. When you browse land listings the parcels that already carry a completed well, a filed well log and a recent water test are worth a premium, because the largest unknown in rural land has already been converted into a known.
Screen parcels for water and access
Frequently Asked Questions
How much does it cost to drill a well?
USDA conservation practice schedules put drilled water wells between roughly $3,900 and $22,900, depending on depth and casing width. Connecticut’s schedule lists a 50-foot, 4-inch well at $3,926.90 and an 800-foot, 8-inch well at $22,894.40. These are cost-share reference rates rather than contractor quotes, so get local pricing stated as a depth range.
What is the cost to drill a well per foot?
It falls as the well gets deeper, which is why a flat per-foot figure misleads. Iowa’s USDA schedule states $36.75 per linear foot at 100 feet and $28.65 at 300 feet. Connecticut works out near $79 per foot at 50 feet and $18 at 400. Always ask for a per-foot rate alongside a target depth.
Does a deeper well cost more than a shallow one?
Not always. In Iowa’s schedule a 48-foot large-diameter well costs $9,371.95 while a 300-foot deep well costs $8,594.47. Casing diameter and drilling method can outweigh depth entirely at the shallow end. Depth raises the total beyond a few hundred feet, but width is the variable people underestimate.
Do you own the water under your land?
Not automatically. In prior-appropriation states groundwater is administered separately from surface ownership, and a permit decides what you may pump and for what. Colorado limits exempt wells to household use, fire protection, livestock and irrigation of not over one acre. Check the permit class before assuming a parcel can supply your intended use.
Resources and Further Reading
- USDA NRCS, Connecticut Practice 642 Water Well Scenarios Seven scenarios with stated depth, casing diameter and cost for each.
- USDA NRCS, Iowa Practice 642 Water Well Scenarios Four scenarios with per-linear-foot rates stated directly in the source.
- Colorado Division of Water Resources, Guideline 2023-1 on Exempt and Small Capacity Wells The exact uses an exempt well may serve and where exempt status applies.
- Colorado Department of Natural Resources, White River Basin Over-Appropriated Declaration What an over-appropriated declaration requires of new non-exempt well permits.
- US EPA, Private Drinking Water Wells Private wells are outside Safe Drinking Water Act regulation and the owner carries responsibility.
