Residential electricity prices in Mark, IL in August 2026 averaged approximately 19.32 cents per kilowatthour (¢/kWh), which was about 6% more than the national average rate of 18.16 ¢/kWh (August 2026). [1]
→ Electricity rates listed as zero are not currently available.
See how electricity costs in Mark differ from the average electricity costs for the U.S. overall. [1]
On a year-over-year basis - from July 2025 to July 2026 - residential electricity prices in Mark increased approximately 12%, from 17.19 ¢/kWh to 19.22 ¢/kWh. [1]
→ Electricity rates listed as zero are not currently available.
Residential natural gas prices in Mark in August 2026 averaged 21.38 dollars per thousand cubic feet ($/Mcf), which was approximately 21% less than the national average rate of 27.05 $/Mcf (August 2026). [2]
→ Natural gas prices listed as zero are not currently available.
See the chart below to see a comparison of Mark natural gas prices against U.S. average prices. Compare Mark natural gas costs to overall U.S. average costs. [2]
On a year-over-year basis, residential natural gas prices in Mark (Illinois) decreased approximately 8%, from 22.77 $/Mcf (July 2025) to 21.04 $/Mcf (July 2026). [2]
→ Natural gas prices listed as zero are not currently available.
Sorry, Mark solar data is not currently available. Please check back later.
See the chart below for a comparison of Mark solar radiation levels against other areas in the U.S. Compare Mark 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.
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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 village of Mark, IL in Putnam County has an approximate population of 555. [4]
To learn more about utility rates & usage in Mark, IL, or for other information related to utilities in Mark, visit the U.S. Energy Information Administration.
A physical process known as the photovoltaic effect is how solar cells convert sunlight into electricity.
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