Well vs City Water Cost in 2026: A 20-Year Comparison

Last reviewed: By Utility Cost Guide research team

Over 20 years, a private well costs roughly $7,000 to $45,000, and about $17,000 is a typical planning figure: a $10,000 complete system plus $350 a year in inspection and testing (national estimates). City water trades that for a smaller or similar upfront bill and a monthly charge that never ends. In Charlotte, a new 5/8-inch connection costs $5,860 in FY2027 utility fees, and about $9,360 with a typical 70-foot private line. On those numbers the well comes out ahead over 20 years if the water portion of your city bill would average more than about $32 a month. Where the main is far away or connection fees are high, the answer shifts sharply toward the well.

Estimate utility connection costs

Estimates are planning figures, not quotes. Confirm fees and trench rules with your utility.

Location and property
Services and site work

Many codes require horizontal separation between water and sewer. This estimate assumes separate water and sewer trenches unless you select a shared run where your utility allows it.

Quoted fees and comparison assumptions

What goes into each side

Private well

All well figures are national estimates (benchmark method). No government agency publishes a per-foot drilling schedule we could retrieve, so the drilling rows rely on labeled consumer data and should be checked against local driller quotes.

City water

Worked example: 20 years in Charlotte

Assumptions: a lot with a Charlotte Water main in the street, a 5/8-inch meter, and the house 70 feet behind the meter box. Well figures are national typical values. Dollars are not adjusted for inflation or future rate increases.

20-year cost, well vs Charlotte city water. City fees are Charlotte Water FY2027 (effective July 1, 2026); well and service-line figures are national estimates.

Item Private well City water (Charlotte)
Upfront: well system $10,000
Upfront: water connection fee (5/8″) $4,407
Upfront: water system development fee $1,453
Upfront: private line, 70 ft × $50/ft $3,500
Upfront total $10,000 $9,360
Ongoing: 20 × annual well check at $350 $7,000
Ongoing: 240 months × your water bill (W) 240 × W
20-year total $17,000 $9,360 + 240 × W

Setting the two totals equal gives the break-even bill: ($17,000 − $9,360) ÷ 240 = $31.83 per month. If the water-only portion of your Charlotte bill would average more than about $32 a month over 20 years, the well is cheaper on these assumptions. If it would average less, city water is. Use your expected household use and the rate schedule on Charlotte Water’s site to estimate W. We don’t assume a bill for you.

How sensitive is that answer?

Very. Two inputs matter most: the well’s actual depth and condition, and the local connection fees.

Break-even monthly water bill (water portion) over 20 years = (well 20-year cost − city upfront cost) ÷ 240. Below the break-even, city water costs less; above it, the well does. A negative result means the well is cheaper at any bill.

Scenario Well, 20 yr City upfront Break-even bill
Charlotte, typical well $17,000 $9,360 $31.83/mo
Charlotte, shallow low-cost well ($5,000 + $100/yr) $7,000 $9,360 negative: well cheaper
Charlotte, deep steel-cased well ($25,000 + $1,000/yr) $45,000 $9,360 $148.50/mo
Tucson, typical well (city: $1,740 service and meter + $240 CAP fee + $3,500 line) $17,000 $5,480 $48.00/mo
Las Vegas, typical well (city: $13,226 LVVWD charges before meter + $3,500 line) $17,000 $16,726 $1.14/mo

Tucson figures are Tucson Water charges effective July 6, 2026 plus the CAP water resource fee. The Las Vegas figure is the sum of the SNWA regional connection charge ($7,998), LVVWD facilities connection charge ($2,371), frontage minimum ($1,190), service installation ($1,177), application ($140), inspection ($185) and meter installation ($165), effective March 1, 2026. The comparison only shows cost. Whether a new domestic well is allowed at a given address is a separate question for the state and county.

Three things the simple math leaves out, and which way each pushes:

Switching an existing home from well to city water

If a main now runs past a home on a well, the cost to switch is the connection fees, the private line, and closing the old well. Our national estimate for properly abandoning (sealing) a residential well is $300 to $1,500, typical $1,000. Deep or large-diameter wells can cost more. Some utilities help: our benchmark sources include Madison Water Utility, which reports reimbursing up to 50% of abandonment cost to a maximum of $1,000. For a Charlotte home 70 feet from the meter, the switch at typical values is $5,860 + $3,500 + $1,000 = $10,360.

A home switching to city water may also stop owning a pump that will eventually need replacement. That avoided cost is real, but we have no verified figure for it, so it is not in the math.

Check the rules before you compare prices. Some jurisdictions restrict new private wells where public water is available, or require connection when a main is built nearby. Ask both the county health department and the water utility before you commit to either option. The numbers above assume both are allowed.

Non-cost differences worth pricing in

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Frequently asked questions

Is it cheaper to drill a well or connect to city water?

It depends on the local connection fees and your water bill. With a typical $10,000 well plus $350 a year (national estimates) against Charlotte’s $5,860 in FY2027 fees and a 70-foot private line, the well wins over 20 years only if the city water bill would average more than about $32 a month. In a high-fee area like Las Vegas, where connection charges exceed $13,000, the well comes out ahead at almost any bill.

How much does a well cost compared with city water upfront?

A complete well system runs $5,000 to $25,000, typical $10,000 (national estimate). City water upfront is the utility’s fees plus your private line: about $9,360 in the Charlotte example, $5,480 in Tucson and $16,726 in Las Vegas with a 70-foot line. If the main has to be extended to reach your lot, city water can cost far more.

How much does it cost to maintain a well each year?

Our national estimate for an annual professional check and water test is $100 to $1,000, typical $350. The low end is a subsidized lab test only, and the high end adds a full lab panel. Pump and pressure-tank replacement is not included and should be budgeted separately.

How much does it cost to switch from a well to city water?

Add the utility’s connection fees, the private line from the meter to the house, and sealing the old well ($300 to $1,500, typical $1,000, national estimate). In Charlotte that is $5,860 + $3,500 for 70 feet of line + $1,000, or about $10,360. Ask whether the utility or city offers abandonment reimbursement, as Madison Water Utility does.

Do I have to connect to city water if it becomes available?

That is set locally, not nationally. Some jurisdictions require connection or restrict new wells once public water is available, and others do not. Check with the county health department and the water utility, and ask whether any frontage or assessment charges apply to lots that do not connect.

Does a well save money if I also need septic?

The well decision and the septic decision are separate calculations, but they often come together on rural lots. A lot with no sewer main will need septic either way, so compare well vs city water on water costs alone. If sewer is also available, run the septic vs sewer comparison separately and add the two results.