Costzap

Quality of Life Index

Compare healthcare, safety, pollution, and climate across countries

Compare healthcare, safety, pollution, and climate across countries. Use these quality of life metrics alongside cost data to find your ideal location.

Country Healthcare Index Safety Index Pollution Index Climate Index
🇲🇨 Monaco 82.5 85.2 22.5 82.8
🇱🇮 Liechtenstein 82.5 88.5 18.5 72.5
🇻🇦 Vatican City 80.5 90.5 20.5 73.8
🇯🇪 Jersey 78.5 83.5 19.5 71.2
🇦🇩 Andorra 78.5 82.5 22.5 74.8
🇸🇲 San Marino 76.8 85.5 25.5 73.5
🇮🇲 Isle of Man 77.8 81.5 20.5 70.5
🇬🇮 Gibraltar 75.5 78.5 28.5 76.5
🇨🇭 Switzerland 73.6 78.3 20.8 70.9
🇸🇬 Singapore 72.7 77.4 28.3 75.2
🇯🇵 Japan 82.1 78.5 35.2 71.6
🇳🇿 New Zealand 75.8 65.5 22.5 77.5
🇦🇹 Austria 77.8 74.5 26.8 69.5
🇮🇸 Iceland 74.5 78.5 15.2 56.8
🇩🇰 Denmark 78.5 76.8 25.3 64.5
🇫🇮 Finland 75.8 77.5 18.5 58.2
🇲🇻 Maldives 69.5 72.8 32.5 82.5
🇨🇾 Cyprus 70.2 72.5 35.8 81.5
🇱🇺 Luxembourg 75.2 73.8 28.5 67.5
🇦🇺 Australia 77.4 57.3 25.6 78.9
🇳🇱 Netherlands 75.8 71.2 27.4 67.8
🇲🇹 Malta 72.8 70.5 38.5 80.5
🇧🇳 Brunei 71.5 75.3 38.4 76.8
🇪🇸 Spain 78.9 65.1 42.5 82.4
🇹🇼 Taiwan 77.8 80.5 48.5 72.3
🇵🇹 Portugal 71.8 67.5 35.8 78.5
🇧🇸 Bahamas 69.5 58.5 32.5 84.5
🇳🇴 Norway 73.9 65.1 17.5 58.3
🇮🇪 Ireland 73.8 68.5 30.5 66.2
🇪🇪 Estonia 70.8 72.5 28.5 62.8
🇸🇮 Slovenia 70.5 72.8 35.8 69.5
🇩🇪 Germany 73.1 65.4 31.2 68.2
🇭🇷 Croatia 66.5 70.8 40.2 75.8
🇫🇯 Fiji 60.5 62.8 35.5 83.5
🇨🇺 Cuba 67.8 68.5 42.8 77.5
🇮🇱 Israel 76.2 62.5 45.3 77.5
🇲🇺 Mauritius 68.4 64.2 42.5 80.5
🇱🇹 Lithuania 70.2 68.5 32.8 63.8
🇰🇷 South Korea 79.2 74.6 54.8 69.5
🇸🇪 Sweden 70.5 53.8 18.7 62.4
🇧🇪 Belgium 76.5 62.8 38.5 66.8
🇺🇾 Uruguay 72.5 62.5 42.5 74.5
🇦🇪 UAE 71.8 80.5 52.4 66.8
🇨🇿 Czech Republic 72.5 70.2 44.5 67.8
🇴🇲 Oman 70.2 75.6 48.3 68.4
🇧🇼 Botswana 62.8 61.5 35.2 76.4
🇨🇦 Canada 70.2 63.7 29.4 60.8
🇵🇷 Puerto Rico 71.5 54.5 42.5 81.5
🇫🇷 France 80.6 51.2 37.8 70.5
🇭🇰 Hong Kong 75.8 73.5 56.8 70.2
🇱🇻 Latvia 68.5 65.8 35.2 63.5
🇶🇦 Qatar 72.8 82.5 58.4 64.2
🇨🇷 Costa Rica 68.5 56.8 45.2 79.5
🇸🇰 Slovakia 66.8 69.5 45.2 67.2
🇬🇷 Greece 67.5 58.5 48.5 78.5
🇺🇸 United States 68.7 52.8 38.5 72.4
🇧🇭 Bahrain 67.4 71.8 52.3 68.2
🇵🇱 Poland 68.5 68.2 48.5 66.5
🇬🇪 Georgia 63.5 67.8 45.2 68.5
🇮🇹 Italy 68.2 54.8 48.9 79.1
🇬🇧 United Kingdom 75.5 54.2 42.1 65.3
🇭🇺 Hungary 65.8 64.2 46.8 69.5
🇲🇪 Montenegro 60.5 64.2 46.8 73.5
🇵🇦 Panama 66.8 52.5 48.5 78.5
🇳🇦 Namibia 58.6 52.4 38.5 75.8
🇯🇲 Jamaica 63.5 52.8 48.5 80.5
🇦🇲 Armenia 61.8 68.5 48.2 65.3
🇹🇹 Trinidad and Tobago 66.5 52.8 52.5 79.8
🇷🇴 Romania 62.5 65.8 52.5 68.8
🇨🇱 Chile 70.5 58.5 58.8 72.5
🇹🇭 Thailand 66.5 61.3 60.8 75.6
🇲🇾 Malaysia 65.3 59.8 58.6 75.8
🇹🇳 Tunisia 62.3 56.5 55.8 77.5
🇧🇿 Belize 58.5 45.8 42.5 78.5
🇸🇦 Saudi Arabia 68.5 68.2 62.5 65.8
🇯🇴 Jordan 64.5 60.2 58.7 73.4
🇰🇼 Kuwait 68.5 73.2 65.8 63.5
🇧🇾 Belarus 60.5 65.8 48.5 61.2
🇷🇸 Serbia 61.2 63.5 54.8 68.5
🇦🇷 Argentina 68.5 48.5 52.8 73.5
🇦🇱 Albania 58.5 58.3 52.8 73.5
🇷🇼 Rwanda 53.7 63.8 52.3 71.4
🇧🇬 Bulgaria 61.8 62.5 58.3 70.2
🇬🇾 Guyana 57.5 48.2 48.5 77.8
🇱🇰 Sri Lanka 62.5 53.8 58.3 76.4
🇲🇦 Morocco 60.5 55.8 59.2 76.4
🇧🇦 Bosnia and Herzegovina 59.2 60.5 54.8 68.5
🇲🇩 Moldova 57.5 60.8 52.3 66.8
🇵🇾 Paraguay 60.5 50.5 52.5 74.2
🇻🇳 Vietnam 61.5 65.8 67.5 72.8
🇹🇷 Turkey 65.8 56.5 61.5 71.8
🇩🇴 Dominican Republic 60.5 48.5 55.8 78.8
🇦🇿 Azerbaijan 59.6 66.2 62.4 67.5
🇳🇮 Nicaragua 57.5 48.5 52.5 77.2
🇰🇬 Kyrgyzstan 56.4 62.5 52.3 63.8
🇺🇿 Uzbekistan 57.4 64.8 58.5 66.5
🇪🇨 Ecuador 62.5 48.5 56.8 75.5
🇲🇰 North Macedonia 59.8 62.5 61.5 68.5
🇱🇧 Lebanon 66.8 48.5 62.4 74.2
🇨🇴 Colombia 65.8 46.8 61.5 74.8
🇨🇳 China 64.2 62.1 68.4 66.3
🇸🇻 El Salvador 62.8 42.5 58.5 76.5
🇮🇩 Indonesia 59.7 54.2 65.3 74.5
🇲🇽 Mexico 64.5 46.8 62.8 74.5
🇿🇦 South Africa 63.5 34.2 52.7 77.8
🇧🇷 Brazil 62.8 42.5 58.5 75.8
🇰🇭 Cambodia 54.2 58.6 63.5 73.2
🇵🇭 Philippines 60.4 51.8 63.2 73.5
🇷🇺 Russia 61.8 60.2 56.8 55.2
🇰🇿 Kazakhstan 60.3 59.8 59.5 58.6
🇺🇦 Ukraine 56.8 52.5 54.5 64.2
🇩🇿 Algeria 55.2 46.8 58.3 74.2
🇵🇪 Peru 63.5 45.8 64.5 72.8
🇽🇰 Kosovo 56.8 55.2 62.5 67.8
🇵🇸 Palestine 58.5 49.2 64.5 72.8
🇹🇯 Tajikistan 54.8 58.2 61.5 64.2
🇬🇹 Guatemala 58.5 43.2 62.5 75.8
🇭🇳 Honduras 56.8 40.5 58.8 76.2
🇹🇿 Tanzania 48.5 53.2 60.4 73.2
🇮🇷 Iran 62.8 55.3 71.4 64.2
🇿🇲 Zambia 50.4 46.8 59.3 72.5
🇬🇭 Ghana 51.3 49.8 62.3 71.2
🇸🇳 Senegal 49.2 51.6 63.8 72.6
🇵🇬 Papua New Guinea 48.5 42.8 58.5 76.8
🇰🇪 Kenya 56.8 45.3 66.2 73.6
🇲🇳 Mongolia 58.6 64.2 68.5 52.3
🇪🇬 Egypt 59.4 52.3 76.8 71.5
🇱🇾 Libya 54.2 38.5 61.8 75.3
🇧🇴 Bolivia 56.8 45.2 65.5 68.5
🇿🇼 Zimbabwe 45.2 42.7 56.8 73.8
🇲🇬 Madagascar 41.5 46.7 58.3 74.8
🇮🇳 India 58.3 48.9 72.5 68.9
🇺🇬 Uganda 47.8 48.5 64.2 70.8
🇻🇪 Venezuela 56.2 32.5 62.8 76.5
🇳🇵 Nepal 50.5 56.8 74.2 67.5
🇲🇿 Mozambique 43.2 44.5 61.7 72.3
🇪🇹 Ethiopia 42.6 48.2 64.5 69.8
🇨🇲 Cameroon 48.3 42.1 65.7 68.5
🇨🇮 Ivory Coast 46.5 44.2 68.9 70.2
🇵🇰 Pakistan 53.8 42.5 76.8 65.2
🇧🇩 Bangladesh 52.3 44.2 79.6 66.5
🇮🇶 Iraq 51.4 38.7 73.6 66.8
🇸🇾 Syria 48.2 32.5 68.5 70.3
🇳🇬 Nigeria 46.8 38.2 74.5 69.5
🇾🇪 Yemen 44.2 32.8 71.5 69.2
🇨🇩 DR Congo 38.2 35.6 72.4 65.3
🇦🇫 Afghanistan 36.5 28.3 78.5 62.4
Healthcare
82.5
Safety
85.2
Pollution
22.5
Climate
82.8
Healthcare
82.5
Safety
88.5
Pollution
18.5
Climate
72.5
Healthcare
80.5
Safety
90.5
Pollution
20.5
Climate
73.8
Healthcare
78.5
Safety
83.5
Pollution
19.5
Climate
71.2
Healthcare
78.5
Safety
82.5
Pollution
22.5
Climate
74.8
Healthcare
76.8
Safety
85.5
Pollution
25.5
Climate
73.5
Healthcare
77.8
Safety
81.5
Pollution
20.5
Climate
70.5
Healthcare
75.5
Safety
78.5
Pollution
28.5
Climate
76.5
Healthcare
73.6
Safety
78.3
Pollution
20.8
Climate
70.9
Healthcare
72.7
Safety
77.4
Pollution
28.3
Climate
75.2
Healthcare
82.1
Safety
78.5
Pollution
35.2
Climate
71.6
Healthcare
75.8
Safety
65.5
Pollution
22.5
Climate
77.5
Healthcare
77.8
Safety
74.5
Pollution
26.8
Climate
69.5
Healthcare
74.5
Safety
78.5
Pollution
15.2
Climate
56.8
Healthcare
78.5
Safety
76.8
Pollution
25.3
Climate
64.5
Healthcare
75.8
Safety
77.5
Pollution
18.5
Climate
58.2
Healthcare
69.5
Safety
72.8
Pollution
32.5
Climate
82.5
Healthcare
70.2
Safety
72.5
Pollution
35.8
Climate
81.5
Healthcare
75.2
Safety
73.8
Pollution
28.5
Climate
67.5
Healthcare
77.4
Safety
57.3
Pollution
25.6
Climate
78.9
Healthcare
75.8
Safety
71.2
Pollution
27.4
Climate
67.8
Healthcare
72.8
Safety
70.5
Pollution
38.5
Climate
80.5
Healthcare
71.5
Safety
75.3
Pollution
38.4
Climate
76.8
Healthcare
78.9
Safety
65.1
Pollution
42.5
Climate
82.4
Healthcare
77.8
Safety
80.5
Pollution
48.5
Climate
72.3
Healthcare
71.8
Safety
67.5
Pollution
35.8
Climate
78.5
Healthcare
69.5
Safety
58.5
Pollution
32.5
Climate
84.5
Healthcare
73.9
Safety
65.1
Pollution
17.5
Climate
58.3
Healthcare
73.8
Safety
68.5
Pollution
30.5
Climate
66.2
Healthcare
70.8
Safety
72.5
Pollution
28.5
Climate
62.8
Healthcare
70.5
Safety
72.8
Pollution
35.8
Climate
69.5
Healthcare
73.1
Safety
65.4
Pollution
31.2
Climate
68.2
Healthcare
66.5
Safety
70.8
Pollution
40.2
Climate
75.8
Healthcare
60.5
Safety
62.8
Pollution
35.5
Climate
83.5
Healthcare
67.8
Safety
68.5
Pollution
42.8
Climate
77.5
Healthcare
76.2
Safety
62.5
Pollution
45.3
Climate
77.5
Healthcare
68.4
Safety
64.2
Pollution
42.5
Climate
80.5
Healthcare
70.2
Safety
68.5
Pollution
32.8
Climate
63.8
Healthcare
79.2
Safety
74.6
Pollution
54.8
Climate
69.5
Healthcare
70.5
Safety
53.8
Pollution
18.7
Climate
62.4
Healthcare
76.5
Safety
62.8
Pollution
38.5
Climate
66.8
Healthcare
72.5
Safety
62.5
Pollution
42.5
Climate
74.5
Healthcare
71.8
Safety
80.5
Pollution
52.4
Climate
66.8
Healthcare
72.5
Safety
70.2
Pollution
44.5
Climate
67.8
Healthcare
70.2
Safety
75.6
Pollution
48.3
Climate
68.4
Healthcare
62.8
Safety
61.5
Pollution
35.2
Climate
76.4
Healthcare
70.2
Safety
63.7
Pollution
29.4
Climate
60.8
Healthcare
71.5
Safety
54.5
Pollution
42.5
Climate
81.5
Healthcare
80.6
Safety
51.2
Pollution
37.8
Climate
70.5
Healthcare
75.8
Safety
73.5
Pollution
56.8
Climate
70.2
Healthcare
68.5
Safety
65.8
Pollution
35.2
Climate
63.5
Healthcare
72.8
Safety
82.5
Pollution
58.4
Climate
64.2
Healthcare
68.5
Safety
56.8
Pollution
45.2
Climate
79.5
Healthcare
66.8
Safety
69.5
Pollution
45.2
Climate
67.2
Healthcare
67.5
Safety
58.5
Pollution
48.5
Climate
78.5
Healthcare
68.7
Safety
52.8
Pollution
38.5
Climate
72.4
Healthcare
67.4
Safety
71.8
Pollution
52.3
Climate
68.2
Healthcare
68.5
Safety
68.2
Pollution
48.5
Climate
66.5
Healthcare
63.5
Safety
67.8
Pollution
45.2
Climate
68.5
Healthcare
68.2
Safety
54.8
Pollution
48.9
Climate
79.1
Healthcare
75.5
Safety
54.2
Pollution
42.1
Climate
65.3
Healthcare
65.8
Safety
64.2
Pollution
46.8
Climate
69.5
Healthcare
60.5
Safety
64.2
Pollution
46.8
Climate
73.5
Healthcare
66.8
Safety
52.5
Pollution
48.5
Climate
78.5
Healthcare
58.6
Safety
52.4
Pollution
38.5
Climate
75.8
Healthcare
63.5
Safety
52.8
Pollution
48.5
Climate
80.5
Healthcare
61.8
Safety
68.5
Pollution
48.2
Climate
65.3
Healthcare
66.5
Safety
52.8
Pollution
52.5
Climate
79.8
Healthcare
62.5
Safety
65.8
Pollution
52.5
Climate
68.8
Healthcare
70.5
Safety
58.5
Pollution
58.8
Climate
72.5
Healthcare
66.5
Safety
61.3
Pollution
60.8
Climate
75.6
Healthcare
65.3
Safety
59.8
Pollution
58.6
Climate
75.8
Healthcare
62.3
Safety
56.5
Pollution
55.8
Climate
77.5
Healthcare
58.5
Safety
45.8
Pollution
42.5
Climate
78.5
Healthcare
68.5
Safety
68.2
Pollution
62.5
Climate
65.8
Healthcare
64.5
Safety
60.2
Pollution
58.7
Climate
73.4
Healthcare
68.5
Safety
73.2
Pollution
65.8
Climate
63.5
Healthcare
60.5
Safety
65.8
Pollution
48.5
Climate
61.2
Healthcare
61.2
Safety
63.5
Pollution
54.8
Climate
68.5
Healthcare
68.5
Safety
48.5
Pollution
52.8
Climate
73.5
Healthcare
58.5
Safety
58.3
Pollution
52.8
Climate
73.5
Healthcare
53.7
Safety
63.8
Pollution
52.3
Climate
71.4
Healthcare
61.8
Safety
62.5
Pollution
58.3
Climate
70.2
Healthcare
57.5
Safety
48.2
Pollution
48.5
Climate
77.8
Healthcare
62.5
Safety
53.8
Pollution
58.3
Climate
76.4
Healthcare
60.5
Safety
55.8
Pollution
59.2
Climate
76.4
Healthcare
59.2
Safety
60.5
Pollution
54.8
Climate
68.5
Healthcare
57.5
Safety
60.8
Pollution
52.3
Climate
66.8
Healthcare
60.5
Safety
50.5
Pollution
52.5
Climate
74.2
Healthcare
61.5
Safety
65.8
Pollution
67.5
Climate
72.8
Healthcare
65.8
Safety
56.5
Pollution
61.5
Climate
71.8
Healthcare
60.5
Safety
48.5
Pollution
55.8
Climate
78.8
Healthcare
59.6
Safety
66.2
Pollution
62.4
Climate
67.5
Healthcare
57.5
Safety
48.5
Pollution
52.5
Climate
77.2
Healthcare
56.4
Safety
62.5
Pollution
52.3
Climate
63.8
Healthcare
57.4
Safety
64.8
Pollution
58.5
Climate
66.5
Healthcare
62.5
Safety
48.5
Pollution
56.8
Climate
75.5
Healthcare
59.8
Safety
62.5
Pollution
61.5
Climate
68.5
Healthcare
66.8
Safety
48.5
Pollution
62.4
Climate
74.2
Healthcare
65.8
Safety
46.8
Pollution
61.5
Climate
74.8
Healthcare
64.2
Safety
62.1
Pollution
68.4
Climate
66.3
Healthcare
62.8
Safety
42.5
Pollution
58.5
Climate
76.5
Healthcare
59.7
Safety
54.2
Pollution
65.3
Climate
74.5
Healthcare
64.5
Safety
46.8
Pollution
62.8
Climate
74.5
Healthcare
63.5
Safety
34.2
Pollution
52.7
Climate
77.8
Healthcare
62.8
Safety
42.5
Pollution
58.5
Climate
75.8
Healthcare
54.2
Safety
58.6
Pollution
63.5
Climate
73.2
Healthcare
60.4
Safety
51.8
Pollution
63.2
Climate
73.5
Healthcare
61.8
Safety
60.2
Pollution
56.8
Climate
55.2
Healthcare
60.3
Safety
59.8
Pollution
59.5
Climate
58.6
Healthcare
56.8
Safety
52.5
Pollution
54.5
Climate
64.2
Healthcare
55.2
Safety
46.8
Pollution
58.3
Climate
74.2
Healthcare
63.5
Safety
45.8
Pollution
64.5
Climate
72.8
Healthcare
56.8
Safety
55.2
Pollution
62.5
Climate
67.8
Healthcare
58.5
Safety
49.2
Pollution
64.5
Climate
72.8
Healthcare
54.8
Safety
58.2
Pollution
61.5
Climate
64.2
Healthcare
58.5
Safety
43.2
Pollution
62.5
Climate
75.8
Healthcare
56.8
Safety
40.5
Pollution
58.8
Climate
76.2
Healthcare
48.5
Safety
53.2
Pollution
60.4
Climate
73.2
Healthcare
62.8
Safety
55.3
Pollution
71.4
Climate
64.2
Healthcare
50.4
Safety
46.8
Pollution
59.3
Climate
72.5
Healthcare
51.3
Safety
49.8
Pollution
62.3
Climate
71.2
Healthcare
49.2
Safety
51.6
Pollution
63.8
Climate
72.6
Healthcare
48.5
Safety
42.8
Pollution
58.5
Climate
76.8
Healthcare
56.8
Safety
45.3
Pollution
66.2
Climate
73.6
Healthcare
58.6
Safety
64.2
Pollution
68.5
Climate
52.3
Healthcare
59.4
Safety
52.3
Pollution
76.8
Climate
71.5
Healthcare
54.2
Safety
38.5
Pollution
61.8
Climate
75.3
Healthcare
56.8
Safety
45.2
Pollution
65.5
Climate
68.5
Healthcare
45.2
Safety
42.7
Pollution
56.8
Climate
73.8
Healthcare
41.5
Safety
46.7
Pollution
58.3
Climate
74.8
Healthcare
58.3
Safety
48.9
Pollution
72.5
Climate
68.9
Healthcare
47.8
Safety
48.5
Pollution
64.2
Climate
70.8
Healthcare
56.2
Safety
32.5
Pollution
62.8
Climate
76.5
Healthcare
50.5
Safety
56.8
Pollution
74.2
Climate
67.5
Healthcare
43.2
Safety
44.5
Pollution
61.7
Climate
72.3
Healthcare
42.6
Safety
48.2
Pollution
64.5
Climate
69.8
Healthcare
48.3
Safety
42.1
Pollution
65.7
Climate
68.5
Healthcare
46.5
Safety
44.2
Pollution
68.9
Climate
70.2
Healthcare
53.8
Safety
42.5
Pollution
76.8
Climate
65.2
Healthcare
52.3
Safety
44.2
Pollution
79.6
Climate
66.5
Healthcare
51.4
Safety
38.7
Pollution
73.6
Climate
66.8
Healthcare
48.2
Safety
32.5
Pollution
68.5
Climate
70.3
Healthcare
46.8
Safety
38.2
Pollution
74.5
Climate
69.5
Healthcare
44.2
Safety
32.8
Pollution
71.5
Climate
69.2
Healthcare
38.2
Safety
35.6
Pollution
72.4
Climate
65.3
Healthcare
36.5
Safety
28.3
Pollution
78.5
Climate
62.4

Index Explanation

Healthcare Index

Quality and accessibility of healthcare services (higher is better)

Safety Index

Overall safety and crime rates (higher is safer)

Pollution Index

Air and environmental pollution levels (lower is better)

Climate Index

Weather conditions and climate comfort (higher is better)

What Quality of Life Means

📊 The Four Indices

We track four key quality of life factors: Healthcare Index (medical quality and accessibility), Safety Index (crime rates and personal security), Pollution Index (air quality and environment - lower is better), and Climate Index (weather comfort and seasonal patterns). Each uses a 0-100 scale.

🎯 Why It Matters

Quality of life factors often determine long-term satisfaction more than cost alone. A cheap location with poor healthcare, high crime, or heavy pollution can negatively impact daily life. These non-financial aspects affect your health, safety, comfort, and overall happiness in a location.

⚖️ Finding Balance

No country excels in all areas. Prioritize what matters most to you - healthcare for medical needs, safety for families, low pollution for respiratory health, or pleasant climate for outdoor lifestyle. Combine quality indices with cost data to find locations matching both your budget and lifestyle priorities.

How to Read the Indices

✅ High Scores (70-100)

Healthcare: Excellent medical systems with modern facilities and comprehensive coverage. Safety: Very low crime with effective law enforcement. Climate: Comfortable temperatures and pleasant weather patterns throughout the year.

⚠️ Mid Scores (40-70)

Healthcare: Adequate care with some limitations in specialized treatments or access. Safety: Moderate crime requiring reasonable precautions. Climate: Varying conditions with seasonal extremes or challenges.

⛔ Low Scores (0-40)

Healthcare: Limited access, outdated facilities, or high costs. Safety: Significant crime concerns requiring vigilance. Climate: Extreme conditions that may impact daily comfort and activities.

Frequently Asked Questions

What does the Quality of Life Index measure?

The index tracks four metrics on a 0-100 scale: healthcare quality, safety levels, pollution levels, and climate comfort across countries.

How should I interpret the Pollution Index?

Unlike the other indices, a lower Pollution Index is better, indicating cleaner air and less environmental pollution in that country.

How is the overall quality ranking determined?

The default ranking combines healthcare, safety, climate (higher is better), and pollution (lower is better) into a composite score for sorting.

Can I see quality of life data for specific cities?

Quality of life indices are currently tracked at the country level. City-level quality data is available in country-to-country comparison pages.