Country rankings
Water Fluoridation by Country
Hong Kong has the highest % of Population Supplied w/ Fluoridated Water (100.0%), followed by Singapore (100.0%) and Brunei (95.0%). Nigeria has the lowest (0.01%).
HealthInfrastructure & Energy52 countries · 4 metricsUpdated Nov 11, 2024Original page
5 sources
- The extent of water fluoridation - The British Fluoridation Society
- Support of fluoridation - The British Fluoridation Society
- Countries that fluoridate their water - Fluoridealert.org (British Fluoridation Society)
- Extent of Water Fluoridation - British Fluoridation Society
- Tooth Decay in F vs NF Countries - Fluoride Alert
51 of 235 countries
% of Population Supplied w/ Fluoridated Water
Darker means higher. Click a place to highlight it.
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All 51 ranked
Highest first.
Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →
Each dot is one country; the lines mark the median and the middle half.
Median
9%
Middle half 3% – 40.0%
Average
25.6%
51 countries
Highest
100.0%
Hong Kong
Lowest
0.01%
Nigeria
Data
Click a column to sort, a row to highlight that place on the charts.
51 countries · # = rank by % of Population Supplied w/ Fluoridated Water
| # | |||
|---|---|---|---|
| 1 |  Hong Kong | 100.0% | — |
| 1 |  Singapore | 100.0% | — |
| 3 |  Brunei | 95.0% | — |
| 4 |  Gabon | 86.0% | — |
| 5 |  Australia | 80.0% | 17,744,000 |
| 6 |  Malaysia | 75.5% | — |
| 7 |  United States | 73.0% | 207,400,000 |
| 7 |  Ireland | 73.0% | 3,450,000 |
| 9 |  Chile | 70.0% | 11,800,000 |
| 9 |  Israel | 70.0% | 5,422,000 |
| 11 |  New Zealand | 61.0% | — |
| 12 |  Kiribati | 51.0% | — |
| 13 |  Canada | 44.0% | 14,560,000 |
| 14 |  Fiji | 36.0% | — |
| 15 |  Guyana | 32.0% | 245,000 |
| 16 |  Tanzania | 28.0% | — |
| 17 |  Libya | 22.0% | 1,400,000 |
| 18 |  Zimbabwe | 21.0% | — |
| 19 |  Argentina | 19.0% | 7,600,000 |
| 20 |  China | 15.0% | — |
| 20 |  Panama | 15.0% | — |
| 22 |  Sri Lanka | 14.0% | — |
| 23 |  Guatemala | 13.0% | — |
| 24 |  Spain | 11.0% | 3,450,000 |
| 25 |  United Kingdom | 10.0% | 6,127,000 |
| 26 |  Namibia | 9% | — |
| 26 |  Malta | 9% | — |
| 28 |  Senegal | 8% | — |
| 28 |  Sweden | 8% | — |
| 30 |  Zambia | 7% | — |
| 31 |  South Korea | 6% | — |
| 31 |  Papua New Guinea | 6% | 172,000 |
| 33 |  India | 5% | — |
| 33 |  Cyprus | 5% | — |
| 35 |  Vietnam | 4% | — |
| 35 |  Finland | 4% | — |
| 37 |  Mexico | 3% | — |
| 37 |  France | 3% | — |
| 37 |  Serbia | 3% | — |
| 40 |  Peru | 2% | 580,000 |
| 40 |  Austria | 2% | — |
| 42 |  Colombia | 1% | — |
| 43 |  Philippines | 0.9% | — |
| 43 |  Denmark | 0.9% | — |
| 45 |  DR Congo | 0.8% | — |
| 46 |  Uruguay | 0.5% | — |
| 47 |  Venezuela | 0.4% | — |
| 48 |  Thailand | 0.2% | — |
| 49 |  Czechia | 0.14% | — |
| 50 |  Haiti | 0.1% | — |
| 51 |  Nigeria | 0.01% | — |
What correlates with % of Population Supplied w/ Fluoridated Water?
Pearson r against 1,667 other country metrics sharing at least 31 countries. Correlation is not causation.
Higher together
Places that have a higher % of Population Supplied w/ Fluoridated Water tend to score higher on these
Opposite directions
Places that have a higher % of Population Supplied w/ Fluoridated Water tend to score lower on these
Quick answers
- Which country has the highest % of Population Supplied w/ Fluoridated Water?
- Hong Kong has the highest % of Population Supplied w/ Fluoridated Water, at 100.0%, followed by Singapore (100.0%) and Brunei (95.0%).
- Which country has the lowest % of Population Supplied w/ Fluoridated Water?
- Nigeria has the lowest % of Population Supplied w/ Fluoridated Water, at 0.01%.
- What is the median % of Population Supplied w/ Fluoridated Water across countries?
- The median is 9% across the 51 countries with data.
- Where does this water fluoridation by country data come from?
- Rankodex compiles it from World Population Review and the primary sources it cites: The extent of water fluoridation - The British Fluoridation Society; Support of fluoridation - The British Fluoridation Society; Countries that fluoridate their water - Fluoridealert.org (British Fluoridation Society); Extent of Water Fluoridation - British Fluoridation Society.