TOP 10 Countries by CO₂ Emissions per Capita from Transport (2025)
Transport Carbon Footprints Behind the 2025 Ranking
Transport CO₂ emissions per capita show how much carbon dioxide a country’s mobility system produces for each resident. The metric isolates transport energy use from power generation, industry, buildings and land-use emissions, making it useful for comparing road dependence, freight intensity, domestic aviation, domestic navigation and the effect of population size.
This 2025 edition uses the latest complete internationally comparable World Bank transport-emissions series available for 2024, paired with 2024 population. The source reports transport emissions in million tonnes of CO₂ equivalent, so values below are presented as approximate tonnes per person after conversion and rounding.
What the upper group really shows
The top of this ranking does not mirror the list of the world’s largest transport emitters. The United States has the largest transport total among the entries shown, but Palau, Gibraltar and Luxembourg rank higher on a per-person basis because their population denominators are far smaller. Per-capita transport emissions therefore measure resident exposure to a mobility footprint, not a country’s total contribution to global transport emissions.
Three structural patterns explain most of the table. Very small economies can move sharply upward when transport fuel use is divided across few residents. Large high-income countries such as the United States and Canada remain high because passenger vehicles and road freight dominate daily mobility. Gulf economies such as Qatar, Saudi Arabia and Kuwait combine high incomes, road-oriented urban form and energy-intensive transport demand.
Top 10 countries and territories by transport CO₂ emissions per capita
Values are approximate tonnes of transport-related CO₂ equivalent per person. They are calculated from World Bank 2024 transport-emissions values and 2024 population. Rounding is kept to one decimal place because the source emissions series is displayed in million tonnes.
| Rank | Country or territory | Transport CO₂ per capita | Main driver |
|---|---|---|---|
| 1 | Palau | ≈45.2 t/person | Very small population and oil-dependent domestic transport. |
| 2 | Gibraltar | ≈12.7 t/person | Small resident base and concentrated road-transport activity. |
| 3 | Luxembourg | ≈6.4 t/person | Cross-border commuting, fuel sales, road traffic and a small population denominator. |
| 4 | United States | ≈4.9 t/person | High vehicle ownership, long travel distances and large road-freight demand. |
| 5 | Qatar | ≈4.6 t/person | High-income, car-oriented mobility and energy-intensive logistics. |
| 6 | New Caledonia | ≈4.1 t/person | Small population and fuel-intensive island transport structure. |
| 7 | Seychelles | ≈4.1 t/person | Small population, tourism-linked mobility and island fuel dependence. |
| 8 | Saudi Arabia | ≈4.1 t/person | Large road network, private-vehicle use and freight-intensive economy. |
| 9 | Canada | ≈4.0 t/person | Long distances, suburban travel patterns and heavy road freight. |
| 10 | Kuwait | ≈3.8 t/person | Car dependence, high fuel use and oil-linked transport demand. |
Regional aggregates, income groups and world totals are excluded from the country ranking. The World Bank series includes selected territories; this is why the table uses “country or territory”. International aviation and international marine bunkers are treated separately in global accounting and are not assigned to national transport totals in the same way as domestic transport.
Chart: transport CO₂ emissions per person in the Top 10
The chart shows tonnes of transport-related CO₂ equivalent per resident. Palau and Gibraltar are clear outliers because small population denominators amplify the per-capita result. The remaining entries form a tighter high-emissions group, led by Luxembourg and followed by road-dependent or fuel-intensive economies.
Methodology
Transport CO₂ emissions per capita are calculated by dividing annual transport-sector emissions by population. The result is expressed in tonnes per resident. The emissions source is the World Bank indicator for carbon dioxide emissions from transport energy, reported in million tonnes of CO₂ equivalent under the AR5 accounting framework.
Formula
Transport CO₂ per capita = transport CO₂ emissions from transport energy × 1,000,000 ÷ population. The conversion is required because emissions are reported in million tonnes, while the ranking is expressed in tonnes per person.
Data year
The ranking is a 2025 edition based on 2024 data, the latest complete year available in the World Bank transport-emissions indicator during preparation. It should not be read as final measured 2025 transport emissions.
Scope of transport
The transport category covers road, rail, domestic aviation, domestic navigation, pipeline transport and non-specified transport energy use. International aviation and international marine bunkers are handled separately in global emissions accounting and are not allocated to countries in the same way as domestic transport.
Processing and comparability
Aggregates such as regions, income groups and “World” were removed before sorting. Countries and territories with both transport-emissions and population values were ranked from highest to lowest by calculated tonnes per person. Values are rounded to one decimal place.
Small countries and territories require careful interpretation. A modest transport-emissions total can translate into a very high per-capita value when the resident population is small. The metric does not measure transport quality, transit access, congestion, vehicle efficiency or the total global climate contribution of a country.
Insights from the transport-emissions ranking
- The highest values are shaped by population scale. Palau, Gibraltar, Luxembourg, New Caledonia and Seychelles show how small population denominators can push transport emissions per resident far above the level seen in many larger economies.
- The United States is the most important large-country case in the Top 10. Its per-capita value reflects high vehicle ownership, long commuting distances, dispersed land use and a road-freight system that carries a large share of domestic goods movement.
- Gulf economies appear because transport demand is energy-intensive and strongly road-oriented. Qatar, Saudi Arabia and Kuwait combine high incomes, high vehicle use and logistics needs linked to large infrastructure and hydrocarbon-based economies.
- Canada’s position reflects geography as much as income. Long distances between cities, cold-climate vehicle use, suburban development and freight requirements all raise transport fuel demand per resident.
- Per-capita rankings should not replace total-emissions rankings. China, India and the European Union are central to global transport decarbonisation by scale, even though their average per-person transport footprints are lower than those in this Top 10.
What this means for readers
Transport CO₂ per capita is a practical indicator of how carbon-intensive everyday mobility and domestic logistics are for the average resident. A high value can point to car dependence, dispersed settlement, long freight routes, domestic aviation, fuel prices or limited low-carbon transport alternatives.
For businesses, the ranking is relevant to fleet planning, logistics emissions, supplier assessment and sustainability reporting. For governments and cities, it highlights why transport decarbonisation requires more than electric cars: public transport capacity, freight efficiency, cleaner fuels, charging networks, compact urban design and road-pricing policy all affect the final footprint.
The useful interpretation is not “which country is worst,” but where each resident’s transport footprint is unusually high and why. The indicator helps separate mobility-related emissions from the rest of the economy and shows where transport policy can produce visible per-capita reductions.
FAQ
Is transport CO₂ per capita the same as total CO₂ per capita?
No. Total CO₂ per capita includes several parts of the economy, such as electricity, industry, buildings and transport. Transport CO₂ per capita isolates mobility and logistics, so it can tell a different story from total national emissions.
Why do small territories rank so high?
Per-capita indicators divide emissions by the number of residents. When population is small, even a modest transport-emissions total can produce a high value. This is why Palau, Gibraltar and New Caledonia should be compared with care.
Are international flights and shipping counted?
Domestic aviation and domestic navigation are included in the transport category. International aviation and international marine bunkers are normally treated separately in emissions accounting and are not assigned to individual countries in the same way as domestic transport.
Does a high value mean transport policy is ineffective?
Not automatically. A high value may reflect geography, income, distance, freight structure, tourism, settlement patterns or fuel use. Policy quality needs additional evidence, including public transport coverage, vehicle efficiency, clean-fuel adoption and freight productivity.
Why is this a 2025 edition if the data year is 2024?
International sector-emissions data are published with a reporting lag. This is a 2025 edition using the latest complete comparable data available at preparation time. The underlying country values are 2024, not final measured 2025 emissions.
Sources
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World Bank — Carbon dioxide (CO₂) emissions from Transport (Energy), Mt CO₂e
Primary source for 2024 transport-sector emissions by country and territory. The series identifies EDGAR / Joint Research Centre and International Energy Agency source material.
data.worldbank.org/indicator/EN.GHG.CO2.TR.MT.CE.AR5 -
World Bank — Population, total
Population denominator for the per-capita calculation. The World Bank population series draws on UN World Population Prospects and national statistical sources.
data.worldbank.org/indicator/SP.POP.TOTL -
Our World in Data — Per capita CO₂ emissions from transport
Used to verify sector-scope notes, including road, rail, domestic aviation, pipeline transport, domestic navigation and the treatment of international aviation and marine bunkers.
ourworldindata.org/grapher/per-capita-co2-transport -
European Commission JRC — EDGAR greenhouse gas emissions data
Methodological reference for sectoral greenhouse-gas emissions and the emissions database used by the World Bank transport indicator.
edgar.jrc.ec.europa.eu -
World Bank DataBank — World Development Indicators
Used as the official data environment for checking country-level WDI indicators and excluding aggregates from the ranking.
databank.worldbank.org/source/world-development-indicators
