What are utility bills like in St. George?

Cooling is the bill that matters here, and it runs for months rather than weeks. This is one of the most common questions I get from people relocating, and the answer is genuinely different from where most of them are moving from.

I am not going to quote dollar figures. Rates change, providers differ across the county, and any number I published would be wrong for your house and would age badly. What I can tell you is what actually drives the number and how to find out the real one for a specific property — which is more useful anyway.

Water deserves its own treatment, because the rate is low and the volume is not — what it costs to water a yard in St. George.

The shape of the year

The thing to understand is that bills here are strongly seasonal, and lopsided.

Through autumn, winter and spring — nine months — energy use is modest. Winter is mild, heating is not the system that defines a house here, and demand is low.

Then from roughly June to September, cooling becomes the dominant load and the bill climbs sharply. That summer peak is the whole story. Your annual cost is essentially your mild-month baseline plus what those three or four months cost you.

This is the reverse of what most transplants are used to. People arriving from northern Utah or the Midwest are accustomed to winter being the expensive season. Here it is not.

Why two similar houses differ so much

This is the part worth internalizing, because it is where your money actually goes — and it means “what are bills like in St. George” has no single answer.

The cooling system: age, type and sizing. The single most consequential mechanical item in a house here. An old or badly sized unit runs longer and harder for the same result. An oversized one short-cycles and dehumidifies poorly.

Insulation and how tight the envelope is. Invisible from the street and directly reflected in every summer bill. A well-sealed house with good attic insulation costs meaningfully less to keep comfortable than a leaky one of identical size.

Shade. Genuine, measurable money. Mature trees, deep eaves, a covered patio, protected west-facing glass. It is one of the strongest practical arguments for established neighborhoods, and it cannot be added quickly.

Window orientation and glazing. A large west-facing wall of glass with nothing shading it is a heat source every afternoon from June onward. Beautiful in photographs, expensive in July.

Roof color and attic ventilation. Both affect how much heat gets into the house in the first place.

Square footage you actually condition. A big house costs more to cool. Straightforward, and worth weighing against the temptation to buy more space than you need.

How you live. Thermostat setting, whether anyone is home during the day, how many people.

The other utilities

Water. Outdoor irrigation is the variable that matters. A large lawn in a desert is a recurring cost, and it is one reason low-maintenance landscaping is genuinely popular with buyers here rather than just a design fashion. Xeriscaped yards cost less to run and less to look after. Some properties also have secondary or irrigation water arrangements, which are worth asking about specifically — they vary across the county.

Heating in winter. Real but modest. Homes have it and use it; it is simply not the defining system.

Internet. Varies by address rather than by city, which matters if you work remotely.

What to actually do before you buy

Ask the seller for twelve months of utility bills. This is the single most useful thing you can do and hardly anyone does it. Not an estimate, not an average — the actual statements. You want to see July and August specifically.

A seller who provides them readily is telling you something. A seller who declines is also telling you something.

Ask the age of the cooling system and whether there are service records. If it is near the end of its life, you are inheriting both higher running costs and a replacement.

Look at the house’s orientation on the lot. Where does the afternoon sun land? Is there anything shading the west side?

Look up. Ask about attic insulation depth and whether it has been upgraded. It is one of the better-value improvements available in this climate.

Have the inspector assess the envelope and the system, not just whether the unit switches on. It is on the southern Utah inspection list for good reason.

Ask about the water arrangement, particularly on older properties or larger lots.

If you are selling

Here is a thing almost no seller thinks to do: if your bills are good, show them.

A relocating buyer worried about summer cooling costs — and they nearly all are — is reassured by seeing twelve months of actual statements on a well-insulated house. It is free, it is credible, and it answers the question they were going to ask anyway.

If your bills are not good, know that going in. A buyer will find out, and it is better handled openly than discovered.

On solar

It comes up constantly in this conversation, and the answer is more complicated than the pitch.

Owned systems are generally viewed as an asset. Leased or financed systems complicate transactions and frequently read to a buyer as an obligation they are inheriting rather than a benefit.

Be particularly careful with any sales claim about federal tax credits. The 30% federal residential clean energy credit was repealed for expenditures made after calendar year 2025 by P.L. 119-21 (Congressional Research Service, Insight IN12611, 25 September 2025). A great deal of installer marketing has not caught up with that, and I have seen material still quoting it as available.

There is a second change people miss: Utah no longer gives new solar customers full retail credit for exported power. New systems go on Rocky Mountain Power’s Schedule 137 net billing, where exports earn a set credit — currently 4.855¢ per kWh June through September and 4.030¢ October through May, against a residential retail rate averaging about 10.2¢ (Utah Clean Energy; rates reset each 1 March). That is roughly half of what you pay to buy power back, which changes the arithmetic considerably.

And if the house is in an HOA, do not assume Utah law guarantees your right to install. Association rules cannot ban solar on a detached dwelling, but a declaration can, and an association can vote a prohibition into its declaration (Utah Code § 57-8a-701). Read the CC&Rs rather than the sales brochure.

Cheap things that actually reduce the summer number

None of these are dramatic, and together they matter.

A programmable thermostat, used properly. Setting back while the house is empty is the easiest saving available.

Attic insulation. One of the better-value improvements in this climate, and frequently thin in older houses.

Sealing the obvious leaks — around ducts, recessed lights, and where the attic hatch sits.

Window coverings on the west side. Cellular shades or exterior shading on the afternoon elevations does measurable work.

Servicing the cooling system annually. A dirty coil or a low charge makes a unit run longer for the same result.

Shade, planted now. It takes years, which is exactly why the time to plant is when you move in rather than when you are tired of the bills.

I am Kelsey Earl, a Realtor with Keller Williams South Valley, and two houses on the same street can differ substantially here. It comes down to the age of the cooling system and whether anything shades the west side.

What to do next

For any house you are seriously considering, ask for twelve months of bills and the age of the cooling system. Those two pieces of information tell you more about what the house will cost to run than any general figure ever could.

Send me an address and I will ask for both as part of the normal questions — along with the HOA position, the school boundary and what is planned nearby. It is a short piece of work and far better done before you are attached to the house.

Note: General information. Utility rates, providers and water arrangements vary across Washington County — confirm with the relevant provider for any specific property.