Electricity prices in San Marcos, CA

Households in San Marcos pay 29.8¢/kWh (California average), about $151 a month for 507 kWh a month, the California household average.

Electricity price
29.8¢/kWh
California average · August 2026
Average monthly bill
$151
507 kWh a month, the California household average
Small business
30.0¢/kWh
California average

Monthly electricity bill by consumption

ConsumptionPer monthPer year
500 kWh a month$149$1,785
1,000 kWh a month$298$3,570
1,500 kWh a month$446$5,355
2,000 kWh a month$595$7,140

At 29.8¢/kWh, the average household price including taxes and fixed charges (August 2026). Small households usually pay a little more per kWh, large ones a little less.

Electricity bill calculator →

Business electricity in San Marcos

Commercial customers pay 30.0¢/kWh and industrial customers 24.1¢/kWh (California average).

All business consumption bands →

Home running costs in San Marcos

In San Marcos, running an 860 sq ft home costs on average $77 a month excluding rent – 8% cheaper than the US average.

Monthly running cost
$77
excluding rent · 860 sq ft
Versus the United States average
−8%
The United States average: $84
Rank in the United States
2,140 of 7,023
1 = lowest running cost
Including rent
$2,425
median rent incl. utilities, all homes

Monthly cost breakdown

Default home: 860 sq ft, 2 people, 2,500 kWh electricity a year.

  • Electricity
  • Heating
  • Rent
Show the data as a table
ValueElectricityHeatingRent
Without rent$62$15–
With rent$62$15$2,348

San Marcos compared with the average for the United States

  • San Marcos
  • The United States average
Show the data as a table
ValueSan MarcosThe United States average
Electricity$62$44
Heating$15$40
Total$77$84

Your biggest saving opportunity

At today's prices a heat pump would cost about $76 a year more than a gas boiler in San Marcos; check the incentives available before deciding.

Gas boiler vs heat pump calculator · Monthly home running cost calculator

Heating need through the year

JanFebMarAprMayJunJulAugSepOctNovDec
Heating degree days per month (long-term average). The more degree days, the more heating energy a home needs.
Show the data as a table
Monthheating degree days
Jan159
Feb141
Mar114
Apr83
May42
Jun9
Jul0
Aug0
Sep2
Oct20
Nov76
Dec167

Heating with a gas boiler: about 2,603 kWh a year at 7.0¢/kWh.

Solar potential in San Marcos

1 kWp of solar panels produces about 1,809 kWh a year here. ($538 per year)

Solar potential in San Marcos →

Not yet available for San Marcos: Water.

How we calculate this

Electricity: average residential price per kWh in the state (August 2026). Heating: heating degree days for the location × floor area × building factor, priced with the gas boiler cost (state residential natural gas price). Water and rent are added when official data is available. Methodology

Nearby cities

More cities in California

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Updated: