Which countries have the highest EPI Safe Drinking Water Score?

7 of the 172 countries with data share the highest EPI Safe Drinking Water Score in 2024, at 100.0: Germany, United Kingdom, Italy, Greece, Switzerland, Finland and Ireland.

Which country has the lowest EPI Safe Drinking Water Score?

Chad has the lowest EPI Safe Drinking Water Score in 2024, at 4.6.

What is the median EPI Safe Drinking Water Score across countries?

The median is 53.3 across the 172 countries with data in 2024.

Where does the Water Quality by Country data come from?

Rankodex compiles it from World Population Review and the primary sources it cites: Unsafe drinking water - Environmental Performance Index.

Country rankings

Water Quality by Country

Name: Water Quality by Country
Creator: Rankodex

7 of the 172 countries with data share the highest EPI Safe Drinking Water Score in 2024 (100.0); the rest range down to 4.6 (Chad).

Environment Infrastructure & Energy180 countries · 2 metricsUpdated Jun 26, 2026Original page

1 source

Unsafe drinking water - Environmental Performance Index

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Year 2024172 of 235 countries

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EPI Safe Drinking Water Score, 2024

Darker green is better (higher is better). Click a place to highlight it.

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Ranking

Best first: the first 15 and last 5 of 172 countries.

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

53.3

Middle half 31.0 – 76.0

Average

54.5

172 countries

Highest

100.0

Germany

Lowest

4.6

Chad

Data

Click a column to sort, a row to highlight that place on the charts.

180 countries · # = rank by EPI Safe Drinking Water Score

#
1	Germany	100.0	5.8
1	United Kingdom	100.0	2.7
1	Italy	100.0	0.4
1	Greece	100.0	3.8
1	Switzerland	100.0	3.2
1	Finland	100.0	0.6
1	Ireland	100.0	11.7
8	Norway	99.9	1.2
9	Luxembourg	99.8	4.0
10	Canada	99.7	7.2
11	Iceland	99.4	5.1
12	Australia	99.2	5.4
12	Austria	99.2	5.0
14	Singapore	98.7	3.2
15	Portugal	97.6	3.3
16	Sweden	97.4	0.8
17	Malta	97.1	5.3
18	Spain	95.7	3.2
19	Montenegro	95.2	6.6
20	Belgium	93.9	3.3
21	Israel	93.8	5.4
22	Denmark	93.4	3.4
23	Netherlands	91.3	4.0
24	South Korea	88.9	2.7
25	Cyprus	88.8	4.4
26	Slovenia	88.2	-0.2
27	France	87.6	4.2
27	Slovakia	87.6	0.4
29	New Zealand	85.7	5.7
30	Latvia	83.4	5.2
31	Chile	82.3	6.3
32	Estonia	81.2	2.0
33	Serbia	81.0	3.8
34	Croatia	80.8	0.8
35	Russia	79.6	6.9
36	Armenia	79.4	5.4
37	Belarus	79.2	1.5
38	Bosnia and Herzegovina	78.7	3.5
39	Poland	77.8	-4.2
40	Lithuania	77.1	1.3
41	Uzbekistan	76.8	7.0
42	Japan	76.7	1.5
43	Georgia	76.1	9.8
44	Ukraine	75.9	-1.4
44	Kazakhstan	75.9	4.6
46	China	75.7	4.7
47	Uruguay	74.4	4.6
48	Kuwait	73.6	3.6
49	Bulgaria	73.2	2.6
50	Qatar	72.9	1.0
51	Czechia	72.8	-2.2
52	Argentina	72.2	9.7
53	Hungary	71.4	0.8
54	Romania	69.6	0.6
54	Albania	69.6	3.8
56	North Macedonia	69.4	7.5
57	Moldova	68.8	2.8
58	Taiwan	68.0	-0.1
59	United Arab Emirates	67.8	4.5
60	Iran	67.5	6.1
61	Bahrain	67.0	1.7
62	Jordan	65.5	5.4
63	Ecuador	64.5	6.4
64	Mongolia	63.6	6.2
65	Mauritius	63.4	3.2
66	Costa Rica	62.7	2.2
67	Kyrgyzstan	62.6	8.7
68	Oman	62.4	1.2
69	Saudi Arabia	61.9	2.0
69	Bahamas	61.9	3.7
71	Algeria	61.3	3.0
72	Turkmenistan	61.0	3.5
73	Brazil	60.1	6.9
73	Tunisia	60.1	1.2
75	Colombia	58.9	0.3
76	Paraguay	58.3	3.4
77	Barbados	58.1	0.2
78	Trinidad and Tobago	57.8	1.5
79	Peru	57.7	4.2
80	Mexico	57.4	3.9
80	Iraq	57.4	5.2
82	Cuba	57.0	1.5
83	Antigua and Barbuda	56.2	1.3
84	Lebanon	55.8	1.6
85	Egypt	54.3	5.7
86	Jamaica	53.5	1.9
87	Grenada	53.0	0.7
88	Saint Lucia	52.1	0.7
89	Samoa	51.9	0.3
90	Seychelles	51.8	3.8
91	Sri Lanka	51.4	2.2
92	Saint Vincent and the Grenadines	51.1	3.0
93	Malaysia	50.9	—
93	El Salvador	50.9	3.6
95	Azerbaijan	49.8	2.9
96	Morocco	49.5	7.4
96	Dominica	49.5	0.2
98	Belize	49.3	2.5
99	Panama	49.2	2.0
100	Tonga	49.1	0.9
101	Nicaragua	48.7	5.1
102	Bolivia	47.7	5.2
103	Venezuela	47.1	-1.1
104	Maldives	45.2	2.4
105	Thailand	44.6	1.2
106	Dominican Republic	42.1	3.6
107	Guyana	41.3	3.9
108	Suriname	41.1	2.0
109	Sudan	40.8	7.8
110	Cambodia	40.7	4.9
111	Philippines	40.4	3.5
112	Bhutan	39.8	6.2
113	Micronesia	39.3	1.3
114	Honduras	38.7	3.9
115	Sao Tome and Principe	38.5	6.5
116	Marshall Islands	36.8	1.7
117	Myanmar	36.2	5.6
118	Gabon	35.3	4.9
119	Fiji	35.1	1.9
120	Nepal	34.7	6.0
120	Solomon Islands	34.7	0.8
122	Equatorial Guinea	34.4	3.0
123	Timor-Leste	34.1	3.2
124	Afghanistan	33.1	7.7
124	Tajikistan	33.1	4.5
124	Laos	33.1	6.9
124	Vanuatu	33.1	1.6
128	Bangladesh	32.6	2.9
129	Indonesia	31.0	3.7
129	Guatemala	31.0	3.9
131	Senegal	28.3	6.1
132	Pakistan	27.9	7.0
133	Ghana	27.8	4.0
134	Mauritania	27.7	4.4
135	Comoros	26.8	3.2
136	Djibouti	26.6	5.4
137	Gambia	25.7	3.2
138	India	25.5	6.4
138	Rwanda	25.5	4.6
140	South Africa	25.2	4.0
141	Uganda	24.5	4.7
142	Cameroon	23.7	6.3
143	Angola	22.5	7.0
144	Zambia	22.3	6.2
145	Kiribati	22.0	3.0
146	Papua New Guinea	21.8	2.6
147	Kenya	21.7	5.2
148	Tanzania	21.4	4.5
149	Mozambique	21.3	5.4
150	Botswana	21.2	2.4
151	Benin	20.8	5.2
152	Guinea	20.7	6.0
153	Guinea-Bissau	20.3	5.2
154	Namibia	20.2	3.5
155	Zimbabwe	19.7	2.4
156	Ethiopia	19.2	4.1
157	Liberia	19.1	6.1
158	Mali	19.0	4.7
159	Eswatini	18.7	4.7
160	Haiti	18.5	3.6
161	Sierra Leone	18.3	4.5
162	Togo	18.2	4.9
163	Malawi	17.8	3.9
164	Burundi	17.5	3.4
165	Eritrea	16.6	2.8
166	Burkina Faso	16.3	3.5
167	Nigeria	14.5	6.0
168	Madagascar	13.5	4.3
169	Niger	12.8	4.5
170	Lesotho	9.8	1.4
171	Central African Republic	9.2	3.0
172	Chad	4.6	2.8
—	United States	—	0.9
—	DR Congo	—	9.1
—	Vietnam	—	2.7
—	Turkey	—	4.7
—	Ivory Coast	—	7.0
—	Republic of the Congo	—	5.0
—	Cape Verde	—	4.0
—	Brunei	—	3.1

What correlates with EPI Safe Drinking Water Score (2024)?

Pearson r against 1,436 other country metrics sharing at least 104 countries. Ranks are read by standing: a better rank counts as higher, whether rank 1 is the best place on a list or the worst. Correlation is not causation.

Higher together

Places that have a higher EPI Safe Drinking Water Score tend to score higher on these (or rank better)

EPI Sanitation & Drinking WaterEnvironmental Performance Index by Country
r = +0.98 · very strong · n = 166
Plot
LP Living ConditionsLegatum Prosperity IndexA rank: rank 1 is the best
r = +0.95 · very strong · n = 154
Plot
LP EducationLegatum Prosperity IndexA rank: rank 1 is the best
r = +0.93 · very strong · n = 154
Plot
Social Progress IndexSocial Progress Index by Country
r = +0.92 · very strong · n = 156
Plot
GDI Male Human DevelopmentGender Development Index by Country
r = +0.92 · very strong · n = 165
Plot
Human Development IndexStandard of Living by Country
r = +0.92 · very strong · n = 171
Plot

Opposite directions

Places that have a higher EPI Safe Drinking Water Score tend to score lower on these (or rank worse)

Gender Inequality Index ScoreGender Inequality Index by Country
r = −0.92 · very strong · n = 154
Plot
Public ServicesFailed States
r = −0.89 · very strong · n = 163
Plot
Individuals Making Under $10kWealth Inequality by Country
r = −0.89 · very strong · n = 160
Plot
% of Pop. Living on Less Than $10 USD/DayPoverty Rate by Country
r = −0.89 · very strong · n = 147
Plot
Still Birth RateStillbirth Rates by Country
r = −0.87 · very strong · n = 171
Plot
Demographic PressuresFailed States
r = −0.86 · very strong · n = 163
Plot

Quick answers

Which countries have the highest EPI Safe Drinking Water Score?: 7 of the 172 countries with data share the highest EPI Safe Drinking Water Score in 2024, at 100.0: Germany, United Kingdom, Italy, Greece, Switzerland, Finland and Ireland.
Which country has the lowest EPI Safe Drinking Water Score?: Chad has the lowest EPI Safe Drinking Water Score in 2024, at 4.6.
What is the median EPI Safe Drinking Water Score across countries?: The median is 53.3 across the 172 countries with data in 2024.
Where does the Water Quality by Country data come from?: Rankodex compiles it from World Population Review and the primary sources it cites: Unsafe drinking water - Environmental Performance Index.

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Higher together

Opposite directions

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