Wyoming CO₂ Emissions
Wyoming emitted 50 million metric tons of energy-related CO₂ in 2024, 1.0% of the US total. That ranks it 34th among the 50 states and the District of Columbia, at 85.2 metric tons per person.
Data year 2024 · Source: U.S. Energy Information Administration, State Energy Data System (June 2026)
How much CO₂ does Wyoming emit?
Wyoming produced 50 million metric tons of carbon dioxide from burning fossil fuels in 2024. The United States as a whole emitted 4.78 billion metric tons, so Wyoming accounts for 1.0% of the national total.
Per person, that is 85.2 metric tons, 6.0 times the US average of 14.1 metric tons. On that measure Wyoming ranks 1st highest of 51.
CO₂ emissions in Wyoming since 1990
Energy-related emissions in Wyoming have fallen by 13% since 1990, from 57 million metric tons to 50 million metric tons. Compared with 2005, the baseline year for many US climate targets and marked on the chart, they have fallen by 22%. Emissions peaked in 2013 at 69 million metric tons and are now 28% below that level.
Emissions by sector
Electric power is the largest source of energy-related CO₂ in Wyoming, at about 58% of the total, followed by industrial at 23% and transportation at 15%.
Emissions by fuel
Coal produces about 57% of the state’s energy-related CO₂, natural gas 23% and petroleum 20%.
How Wyoming compares with other states
These are the states closest to Wyoming in the 2024 ranking by total emissions. See the full ranking of all states.
| # | State | Total (Mt) | Share of US | Per person (t) |
|---|---|---|---|---|
| 32 | Kansas | 55.09 | 1.2% | 18.6 |
| 33 | Utah | 55.03 | 1.2% | 15.7 |
| 34 | Wyoming | 50.00 | 1.0% | 85.2 |
| 35 | Maryland | 48.77 | 1.0% | 7.8 |
| 36 | Alaska | 44.01 | 0.9% | 59.7 |
Frequently asked questions
How much CO₂ does Wyoming emit per year?
Wyoming emitted 50 million metric tons of energy-related CO₂ in 2024, which is 1.0% of the US total of 4.78 billion metric tons.
What are the CO₂ emissions per person in Wyoming?
About 85.2 metric tons per person in 2024, 6.0 times the US average of 14.1 metric tons. That ranks 1st highest of 51.
Have emissions in Wyoming fallen since 2005?
They have fallen by 22% since 2005 and fallen by 13% since 1990. Emissions peaked in 2013 at 69 million metric tons and are now 28% below that level.
What is the biggest source of CO₂ in Wyoming?
Electric power is the largest sector, at about 58% of energy-related emissions, followed by industrial at 23%. By fuel, coal accounts for 57%.
About the data. Figures are energy-related carbon dioxide emissions: CO₂ from burning coal, natural gas and petroleum, in million metric tons. Emissions from power plants are counted in the state where the electricity is generated, not where it is used. Other greenhouse gases and non-energy sources such as agriculture are not included.
Source: U.S. Energy Information Administration, State Energy Data System, released June 26, 2026. Latest year available: 2024.
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