Heating Cost in Maryland → St. Mary's County
How much does it cost to heat a home in St. Mary's County? Here's a breakdown by fuel type, using real local prices and 4,591 heating degree days for St. Mary's County.
Estimates are for a typical 2,000 sq ft home. Use the calculator for your exact ZIP code.
| Fuel | Local Price | Cost/MMBTU | Annual Cost | Monthly (Heating) |
|---|---|---|---|---|
| Natural Gas Cheapest | $1.66/therm | $18 | $1,146 | $191 |
| Heat Pump | $0.36/kWh | $35 | $2,251 | $375 |
| Heating Oil | $4.70/gallon | $40 | $2,566 | $428 |
| Electric Baseboard | $0.36/kWh | $105 | $6,753 | $1,126 |
Cheapest option for this area
Natural Gas
$1,146/year estimated — saving $1,420/year vs heating oil
Oil price: $4.70/gal (local median). Electricity: $0.36/kWh (Maryland avg). Gas: $1.66/therm (Maryland avg). HDD: 4,591. Estimates for a 2,000 sq ft home.
Prices updated: 2026-06-27. Prices may differ from real-time calculator.
At local electricity rates ($0.36/kWh) and oil prices ($4.70/gal), switching from oil to a heat pump would pay for itself in approximately 35 years (based on average installation cost of $11,000). Federal tax credits and state rebates can reduce this significantly.
During the heating season (October–March), a typical 2,000 sq ft home in St. Mary's County costs approximately:
If you're staying with oil heat, the biggest savings come from comparing local suppliers. The spread between cheapest and most expensive in St. Mary's County can be $0.50–$1.00/gallon — that's $250–$500/year on the same fuel.
Median: $4.70/gal · 3 suppliers reporting prices
Compare St. Mary's County Suppliers →