Average Electric Bill for a 3-bedroom home in Idaho (2026)

A typical 3-bedroom home in Idaho uses about 970 kWh/month and pays roughly $123/month — or $1,478/year — for electricity, at Idaho’s April 2026 residential rate of 12.70¢/kWh.

Home size1600 sq ft

Typical use970 kWh/mo

Monthly bill$123

Annual$1,478

Assumes typical 2-4 occupants in a 3-bedroom home. Idaho rate: 12.70¢/kWh (April 2026, EIA).

What drives the bill in a 3-bedroom home?

For a 1600 sq ft home in Idaho, the biggest bill drivers are typically:

Cooling (18-30%): A central AC or heat pump for a home this size draws 2-4 kW while running. See central AC cost in Idaho.
Water heating (12-18%): See electric water heater or gas vs electric.
Heating (10-25%): See heat pump or heat pump vs resistance.
Refrigeration (~7%): See refrigerator.
Laundry (~5%): Dryer + washer.
Always-on / miscellaneous (25-35%): TVs, computers, chargers, small appliances.

Compared to other home sizes in Idaho

Home size	Typical kWh/month	Monthly bill in Idaho
1-bedroom apartment	550	$70
2-bedroom apartment/small home	730	$93
3-bedroom home	970	$123
4-bedroom home	1230	$156
5-bedroom / large home	1500	$190

How to lower the Idaho bill on a 3-bedroom home

Smart thermostat — 10-15% off HVAC runtime. Payback under a year at Idaho rates.
LED all bulbs — a home this size has ~16 bulbs. Switching to LED saves ~$128/year.
Insulate — attic + walls cut HVAC load 15-25%.
Time-of-use plan — if your Idaho utility offers TOU, shifting laundry/dishwasher/EV charging overnight cuts 20-30% off variable-time loads.

Gear to lower a 3-bedroom home bill

Affiliate links — we may earn a small commission at no cost to you.

Sense whole-home energy monitor — pinpoint hidden loads
Ecobee smart thermostat
Philips LED 24-pack
Kill-A-Watt meter — measure one appliance at a time

FAQ

Is 970 kWh/month a realistic estimate?

This is the U.S. national average for a home of this size per the EIA Residential Energy Consumption Survey. Real usage varies significantly by climate (Sun Belt homes ~30% higher due to AC; mild-climate homes ~30% lower).

What if my home is all-electric (including heat and water heat)?

All-electric homes typically use 40-60% more kWh than the estimates above. A 3-bedroom home with electric heat and electric water heater in Idaho might use 1,400-1,700 kWh/month rather than 970.

Does this include natural gas?

No. This is electricity only. If you also have natural gas, expect an additional gas bill of $30-$120/month depending on climate and appliances.