Residential electricity prices in San Marcos, CA in November 2025 averaged approximately 31.91 cents per kilowatthour (¢/kWh), which was about 79% more than the national average rate of 17.78 ¢/kWh (November 2025). [1]
→ Electricity rates listed as zero are not currently available.
See how electricity costs in San Marcos differ from the average electricity costs for the U.S. overall. [1]
On a year-over-year basis - from October 2024 to October 2025 - residential electricity prices in San Marcos increased approximately 4%, from 32.45 ¢/kWh to 33.60 ¢/kWh. [1]
→ Electricity rates listed as zero are not currently available.
Residential natural gas prices in San Marcos in November 2025 averaged 0.00 dollars per thousand cubic feet ($/Mcf), which was approximately 100% less than the national average rate of 14.87 $/Mcf (November 2025). [2]
→ Natural gas prices listed as zero are not currently available.
See the chart below to see a comparison of San Marcos natural gas prices against U.S. average prices. Compare San Marcos natural gas costs to overall U.S. average costs. [2]
On a year-over-year basis, residential natural gas prices in San Marcos (California) decreased approximately 100%, from 19.91 $/Mcf (October 2024) to 0.00 $/Mcf (October 2025). [2]
→ Natural gas prices listed as zero are not currently available.
Sorry, San Marcos solar data is not currently available. Please check back later.
See the chart below for a comparison of San Marcos solar radiation levels against other areas in the U.S. Compare San Marcos levels against both 1) low average solar radition levels (WA) and also 2) high average solar radiation levels (NV). [3]
→ k/m/d: kilowatt hours per square meter per day.
→ Solar radiation values listed as zero are not currently available.
Households in the United States have benefited from falling energy prices in recent years, which has driven down the cost of living.
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Penn State researchers recently examined microgrids and discovered that they may not always be a wise economic move for communities.
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Through the analysis of publicly available data filed by electricity suppliers, the CT OCC discovered that electricity customers overpaid by $58 million in 2015.
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The city of San Marcos, CA in San Diego County has an approximate population of 83,781. [4]
To learn more about utility rates & usage in San Marcos, CA, or for other information related to utilities in San Marcos, visit the U.S. Energy Information Administration.
Five states accounted for about 40% percent of total U.S. natural gas usage in 2013: Texas, California, Louisiana, Florida, & New York.
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