What Are the Estimated Monthly Utility Costs in Southwest Florida?

How much will it actually cost to keep the lights on, the AC running, the pool clean, and the lawn watered in Southwest Florida? If you are moving here from a colder climate, the answer may surprise you — especially in summer.

Mortgage calculators tell you the payment. They do not tell you that your electric bill can be higher than your car payment from June through October. This guide covers the real monthly utility costs across Naples, Bonita Springs, Fort Myers, Estero, and Cape Coral so you can budget honestly before you buy.

Electricity and AC: the biggest cost driver

Air conditioning is not a luxury in Southwest Florida — it is a necessity. Most homes run their AC system nine to ten months out of the year, and for four of those months it runs almost continuously. That is the single largest factor in your monthly utility bill.

Typical monthly electric bills range from $150 to $400+, depending on several variables:

• Home size. A 1,200-square-foot villa costs significantly less to cool than a 3,500-square-foot single-family home. Expect roughly $0.10–$0.15 per square foot per month in the summer months.
• Age and efficiency of the AC system. A modern 16–20 SEER unit uses 30–50% less electricity than a 10–12 SEER system from 15 years ago. If the home's AC is original to a 2005 build, budget toward the higher end.
• Insulation and windows. Homes with spray-foam insulation, double-pane low-E windows, and radiant barriers in the attic stay cooler with less energy. Older construction with single-pane windows and blown-in fiberglass loses cool air faster, forcing the AC to work harder.
• Solar panels. A growing number of Southwest Florida homes have rooftop solar. In some cases, the system covers most or all of the electric load, reducing the monthly bill to the minimum base fee of $10–$15. If solar is important to you, check whether the panels are owned or leased — leased panels transfer to the new owner and the monthly lease payment must be factored in.
• Thermostat habits. Keeping the thermostat at 78°F instead of 72°F can save $50–$100 per month in peak season. Programmable or smart thermostats make this easier.

LCEC (Lee County Electric Cooperative) and FPL (Florida Power & Light) are the primary providers, depending on your location. Rates vary slightly, and both offer budget billing — a fixed monthly payment based on your annual average — which removes the shock of the summer spike.

Pool pump: $50–$150 per month on top of your electric bill

A swimming pool is one of the great joys of Southwest Florida living. It is also a real line item on your electric bill. Pool pumps run daily — typically 6–10 hours in cooler months and 10–12 hours in summer — and they draw significant power.

• Single-speed pumps are the least efficient and can add $100–$150 per month to your electric bill.
• Variable-speed pumps use 50–70% less energy and cost $50–$80 per month to operate. Since 2021, Florida law has required variable-speed pumps on all new pool installations, so newer homes and recently replaced pumps will have the more efficient type.
• If you are looking at a home with an older single-speed pump, factor in the cost of replacement — a new variable-speed pump installed runs $800–$1,500 depending on the model and plumbing configuration.

Pool heaters (gas or electric) are another cost driver if the sellers heat the pool in winter. Gas heaters can add $100–$300 per month during the cooler months. Heat pumps are more efficient but still add to the electric load. Most buyers do not heat their pools year-round, but it is worth asking what current usage looks like.

Water and sewer: it depends on where you live

Water rates in Southwest Florida are not uniform. Each municipality sets its own structure, and the differences can be significant. Here is what you need to know:

• City of Naples — Water and sewer are billed together. For a typical single-family home, expect $60–$100 per month depending on usage. Naples residents also pay a stormwater fee, typically $8–$15 per month.
• City of Fort Myers — Rates are moderate. A typical household pays $50–$90 per month for water and sewer combined. Fort Myers also has a stormwater fee.
• Cape Coral — Cape Coral's water rates are notably higher than some neighboring areas, because the city treats its own water from the Caloosahatchee River and maintains an extensive distribution system across 400+ miles of canals. Monthly bills for a single-family home range from $80–$150, and can go higher with heavy irrigation use.
• Unincorporated Lee County — If the home is on well water, there is no monthly water bill from the municipality (though well maintenance and water testing are your responsibility). Sewer service, if available, is billed separately — typically $40–$80 per month. Septic systems have no monthly bill but require pumping every 3–5 years at $300–$500 per visit.
• Bonita Springs and Estero — Most homes are on Bonita Springs Utilities or Lee County utility service. Typical combined bills run $60–$120 per month.

When you are looking at a property, ask the seller or listing agent for a recent utility bill. Twelve months of history is even better — it shows you the seasonal extremes.

Lawn irrigation

Keeping a Southwest Florida landscape green requires water — especially from November through May, when rainfall drops sharply. The cost depends on your water source:

• Well water: The most cost-effective option. No monthly charge beyond the electricity to run the well pump (negligible — roughly $5–$15 per month).
• Municipal water: If the irrigation system runs on city or county water, your bill increases significantly — especially in the dry season. Lawn irrigation can add $30–$80 per month to your water bill, and more if you have a large lot.
• Reclaimed water: Some communities provide reclaimed (non-potable) water for irrigation at a reduced rate. This is the best of both worlds — low cost and no strain on the drinking water system. Ask whether the community offers it.

Pest control

Florida's warm, humid climate is ideal for insects — ants, roaches, mosquitoes, termites, and palmetto bugs are part of life here. Most homeowners budget for monthly or quarterly pest control:

• Monthly general pest control (interior and perimeter): $40–$80 per month
• Quarterly treatments: $100–$200 per quarter
• Termite bond and annual inspection: $200–$400 per year
• Mosquito control (weekly or monthly spray): $50–$100 per month in warmer months

Many homeowners choose a bundled plan covering general pests and termites for $50–$80 per month. Some communities have a pest-control contract included in the HOA fee — check yours.

Hurricane shutter maintenance

Hurricane protection is not a monthly utility in the traditional sense, but it is a recurring cost every homeowner in Southwest Florida should plan for:

• Accordion shutters and roll-down shutters: Minimal ongoing cost, but require annual maintenance — lubricating tracks, checking for corrosion, testing operation. Budget $100–$300 per year.
• Impact glass: No maintenance cost, but if you have removable panels or storm panels, factor in the labor or time to install and remove them each season.
• Manual vs. motorized: Motorized roll-down shutters add convenience, but the motors can fail and are expensive to replace — $500–$1,000 per unit.

This is a small line item compared to electricity and water, but it matters when you are calculating the full yearly carrying cost of a home.

Monthly utility cost summary table

How Larissa helps buyers budget for the real cost of ownership

Asking the right questions about utilities before you make an offer is part of how you protect your equity and avoid surprises after closing. Larissa works through the full cost picture with every buyer — including estimated utility costs — so you know exactly what you are committing to before you sign. That means asking sellers for utility history, checking whether the pool pump is variable-speed, looking at the age of the AC system, verifying the water source, and reviewing the flood zone and insurance picture at the same time.

The mortgage payment is only part of the monthly equation. The true cost of living in your new home includes every line item above — and Larissa makes sure you see the full picture before you buy.