Share of drinkers who have had a heavy drinking session in past 30 days in Tonga
Tonga: Share of drinkers who have had a heavy drinking session in past 30 days was 47.8% in 2020. ▼ Falling
Share of drinkers who have had a heavy drinking session in past 30 days in Tonga, 2000–2020
Source: World Health Organization - Global Health Observatory (2026) – with minor processing by Our World in Data. Measured in %.
Analysis
The most recent figure for share of drinkers who have had a heavy drinking session in past 30 days in Tonga is 47.8%, measured in 2020.
Compared with earlier readings it is down 0.3% on the previous year and down 17.2% over ten years.
Over the whole period, share of drinkers who have had a heavy drinking session in past 30 days in Tonga peaked at 61.3% in 2001 and was at its lowest, 42.7%, in 2012.
That places Tonga 54th out of 187 countries with data for 2020, putting it in the middle of the range.
The long-run direction has been consistently falling across the 21 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 59.8% | 57.3% | 61.3% | 10 |
| 2010s | 48.8% | 42.7% | 57.8% | 10 |
| 2020s | 47.8% | 47.8% | 47.8% | 1 |
Countries ranked near Tonga
- 51 Cambodia 48.4% compare
- 53 Guinea-Bissau 47.9% compare
- 55 New Zealand 47.6% compare
- 56 Nigeria 47.5% compare
- 57 Zimbabwe 47.4% compare
More reference data data for Tonga
- Universal right to vote in practice 2 (2025)
- Competitive elections 1 (2025)
- Free country 2 (2025)
- Civil liberties rating 2 (2025)
- Men's universal right to vote 1 (2025)
- Elected parliament 1 (2025)
- Democracy 7 (2025)
- Consumer price index 174.32 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Chief executive of the government is elected 1 (2025)
Frequently asked questions
- What is share of drinkers who have had a heavy drinking session in past 30 days in Tonga?
- Share of drinkers who have had a heavy drinking session in past 30 days in Tonga was 47.8% in 2020, according to World Health Organization - Global Health Observatory (2026) – with minor processing by Our World in Data.
- What is the highest share of drinkers who have had a heavy drinking session in past 30 days recorded in Tonga?
- The highest recorded value was 61.3% in 2001.
- What is the lowest share of drinkers who have had a heavy drinking session in past 30 days recorded in Tonga?
- The lowest recorded value was 42.7% in 2012.
- How does Tonga rank for share of drinkers who have had a heavy drinking session in past 30 days?
- Tonga ranks 54th out of 187 countries with data for 2020.
- Is share of drinkers who have had a heavy drinking session in past 30 days rising or falling in Tonga?
- Over the last ten years it is down 17.2%. The long-run trend across the full record is falling.
- Where does this Tonga data come from?
- The figures come from World Health Organization - Global Health Observatory (2026) – with minor processing by Our World in Data, published as part of Share of drinkers who have had a heavy drinking session in past 30 days. Statizoid updates them automatically from the source API.
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CSV · JSON — 21 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Heavy episodic drinking (drinkers only) is defined as the proportion of adult drinkers (15+ years) who have had at least 60 grams or more of pure alcohol on at least one occasion in the past 30 days. A consumption of 60 grams of pure alcohol corresponds approximately to 6 standard alcoholic drinks.