Countries With Highest Population - Population By Country
Most Populated Countries In The World
The Top 10 Most Populated Countries
1,463,870,000

India
1,416,100,000

China
347,276,000

America
285,721,000

Indonesia
255,220,000

Pakistan
237,528,000

Nigeria
212,812,000

Brazil
175,687,000

Bangladesh
143,997,000

Russia
135,472,000

Ethiopia
[Data based on 2026 demographic projections]. While the specific numbers change daily, the ranking of the world’s most populous nations remains relatively stable.
| Rabk | Country | Population | Location | Area | Density | Global Share |
|---|---|---|---|---|---|---|
| 1 | India | 1,463,870,000 | Asia | 3.3M | 492 | 18.29% |
| 2 | China | 1,416,100,000 | Asia | 9.7M | 150 | 17.69% |
| 3 | United States | 347,276,000 | North America | 9.4M | 38 | 4.34% |
| 4 | Indonesia | 285,721,000 | Asia | 1.9M | 152 | 3.57% |
| 5 | Pakistan | 255,220,000 | Asia | 881.9K | 331 | 3.19% |
| 6 | Nigeria | 237,528,000 | Africa | 923.8K | 261 | 2.97% |
| 7 | Brazil | 212,812,000 | South America | 8.5M | 25 | 2.66% |
| 8 | Bangladesh | 175,687,000 | Asia | 147.6K | 1,350 | 2.19% |
| 9 | Russia | 143,997,000 | Asia | 17.1M | 9 | 1.80% |
| 10 | Ethiopia | 135,472,000 | Africa | 1.1M | 120 | 1.69% |
| 11 | Mexico | 131,947,000 | North America | 2M | 68 | 1.65% |
| 12 | Japan | 123,103,000 | Asia | 377.9K | 338 | 1.54% |
| 13 | Egypt | 118,366,000 | Africa | 1M | 119 | 1.48% |
| 14 | Philippines | 116,787,000 | Asia | 342.4K | 392 | 1.46% |
| 15 | DR Congo | 112,832,000 | Africa | 2.3M | 50 | 1.41% |
| 16 | Vietnam | 101,599,000 | Asia | 331.2K | 324 | 1.27% |
| 17 | Iran | 92,417,700 | Asia | 1.6M | 57 | 1.15% |
| 18 | Turkey | 87,685,400 | Asia | 783.6K | 112 | 1.10% |
| 19 | Germany | 84,075,100 | Europe | 357.1K | 241 | 1.05% |
| 20 | Thailand | 71,619,900 | Asia | 513.1K | 140 | 0.89% |
| 21 | Tanzania | 70,545,900 | Africa | 945.1K | 80 | 0.88% |
| 22 | United Kingdom | 69,551,300 | Europe | 242.9K | 287 | 0.87% |
| 23 | France | 66,650,800 | Europe | 551.7K | 122 | 0.83% |
| 24 | South Africa | 64,747,300 | Africa | 1.2M | 53 | 0.81% |
| 25 | Italy | 59,146,300 | Europe | 301.3K | 200 | 0.74% |
| 26 | Kenya | 57,532,500 | Africa | 580.4K | 101 | 0.72% |
| 27 | Myanmar | 54,850,600 | Asia | 676.6K | 84 | 0.69% |
| 28 | Colombia | 53,425,600 | South America | 1.1M | 48 | 0.67% |
| 29 | South Korea | 51,667,000 | Asia | 100.2K | 529 | 0.65% |
| 30 | Sudan | 51,662,100 | Africa | 1.9M | 28 | 0.65% |
| 31 | Uganda | 51,384,900 | Africa | 241.6K | 256 | 0.64% |
| 32 | Spain | 47,890,000 | Europe | 506K | 96 | 0.60% |
| 33 | Algeria | 47,435,300 | Africa | 2.4M | 20 | 0.59% |
| 34 | Iraq | 47,020,800 | Asia | 438.3K | 108 | 0.59% |
| 35 | Argentina | 45,851,400 | South America | 2.8M | 17 | 0.57% |
| 36 | Afghanistan | 43,844,100 | Asia | 652.2K | 67 | 0.55% |
| 37 | Yemen | 41,773,900 | Asia | 528K | 79 | 0.52% |
| 38 | Canada | 40,126,700 | North America | 10M | 4 | 0.50% |
| 39 | Angola | 39,040,000 | Africa | 1.2M | 31 | 0.49% |
| 40 | Ukraine | 38,980,400 | Europe | 603.5K | 67 | 0.49% |
| 41 | Morocco | 38,430,800 | Africa | 446.6K | 86 | 0.48% |
| 42 | Poland | 38,140,900 | Europe | 312.7K | 125 | 0.48% |
| 43 | Uzbekistan | 37,053,400 | Asia | 447.4K | 84 | 0.46% |
| 44 | Malaysia | 35,977,800 | Asia | 330.8K | 110 | 0.45% |
| 45 | Mozambique | 35,631,700 | Africa | 801.6K | 45 | 0.45% |
| 46 | Ghana | 35,064,300 | Africa | 238.5K | 154 | 0.44% |
| 47 | Peru | 34,576,700 | South America | 1.3M | 27 | 0.43% |
| 48 | Saudi Arabia | 34,566,300 | Asia | 2.1M | 16 | 0.43% |
| 49 | Madagascar | 32,740,700 | Africa | 587K | 56 | 0.41% |
| 50 | Ivory Coast | 32,711,500 | Africa | 322.5K | 103 | 0.41% |
| 51 | Cameroon | 29,879,300 | Africa | 475.4K | 63 | 0.37% |
| 52 | Nepal | 29,618,100 | Asia | 147.2K | 207 | 0.37% |
| 53 | Venezuela | 28,516,900 | South America | 916.4K | 32 | 0.36% |
| 54 | Niger | 27,917,800 | Africa | 1.3M | 22 | 0.35% |
| 55 | Australia | 26,974,000 | Oceania | 7.7M | 4 | 0.34% |
| 56 | North Korea | 26,571,000 | Asia | 120.5K | 221 | 0.33% |
| 57 | Syria | 25,620,400 | Asia | 185.2K | 140 | 0.32% |
| 58 | Mali | 25,198,800 | Africa | 1.2M | 21 | 0.31% |
| 59 | Burkina Faso | 24,074,600 | Africa | 273K | 88 | 0.30% |
| 60 | Sri Lanka | 23,229,500 | Asia | 65.6K | 376 | 0.29% |
| 61 | Taiwan | 23,112,800 | Asia | 36.2K | 639 | 0.29% |
| 62 | Malawi | 22,216,100 | Africa | 118.5K | 236 | 0.28% |
| 63 | Zambia | 21,913,900 | Africa | 752.6K | 29 | 0.27% |
| 64 | Chad | 21,003,700 | Africa | 1.3M | 17 | 0.26% |
| 65 | Kazakhstan | 20,843,800 | Asia | 2.7M | 8 | 0.26% |
| 66 | Chile | 19,859,900 | South America | 756.1K | 27 | 0.25% |
| 67 | Somalia | 19,654,700 | Africa | 637.7K | 31 | 0.25% |
| 68 | Senegal | 18,932,000 | Africa | 196.7K | 98 | 0.24% |
| 69 | Romania | 18,908,600 | Europe | 238.4K | 82 | 0.24% |
| 70 | Guatemala | 18,687,900 | North America | 108.9K | 174 | 0.23% |
| 71 | Netherlands | 18,346,800 | Europe | 41.9K | 545 | 0.23% |
| 72 | Ecuador | 18,289,900 | South America | 276.8K | 74 | 0.23% |
| 73 | Cambodia | 17,848,000 | Asia | 181K | 101 | 0.22% |
| 74 | Zimbabwe | 16,950,800 | Africa | 390.8K | 44 | 0.21% |
| 75 | Guinea | 15,099,700 | Africa | 245.9K | 61 | 0.19% |
| 76 | Benin | 14,814,500 | Africa | 112.6K | 131 | 0.19% |
| 77 | Rwanda | 14,569,300 | Africa | 26.3K | 591 | 0.18% |
| 78 | Burundi | 14,390,000 | Africa | 27.8K | 560 | 0.18% |
| 79 | Bolivia | 12,581,800 | South America | 1.1M | 12 | 0.16% |
| 80 | Tunisia | 12,348,600 | Africa | 163.6K | 79 | 0.15% |
| 81 | South Sudan | 12,188,800 | Africa | 619.7K | 19 | 0.15% |
| 82 | Haiti | 11,906,100 | North America | 27.8K | 432 | 0.15% |
| 83 | Belgium | 11,758,600 | Europe | 30.5K | 388 | 0.15% |
| 84 | Jordan | 11,520,700 | Asia | 89.3K | 130 | 0.14% |
| 85 | Dominican Republic | 11,520,500 | North America | 48.7K | 238 | 0.14% |
| 86 | United Arab Emirates | 11,346,000 | Asia | 83.6K | 160 | 0.14% |
| 87 | Honduras | 11,005,800 | North America | 112.5K | 98 | 0.14% |
| 88 | Cuba | 10,937,200 | North America | 109.9K | 105 | 0.14% |
| 89 | Tajikistan | 10,786,700 | Asia | 143.1K | 78 | 0.13% |
| 90 | Papua New Guinea | 10,762,800 | Oceania | 462.8K | 24 | 0.13% |
| 91 | Sweden | 10,656,600 | Europe | 450.3K | 26 | 0.13% |
| 92 | Czech Republic | 10,609,200 | Europe | 78.9K | 137 | 0.13% |
| 93 | Portugal | 10,411,800 | Europe | 92.1K | 114 | 0.13% |
| 94 | Azerbaijan | 10,397,700 | Asia | 86.6K | 126 | 0.13% |
| 95 | Greece | 9,938,840 | Europe | 132K | 77 | 0.12% |
| 96 | Togo | 9,721,610 | Africa | 56.8K | 179 | 0.12% |
| 97 | Hungary | 9,632,290 | Europe | 93K | 106 | 0.12% |
| 98 | Israel | 9,517,180 | Asia | 20.8K | 440 | 0.12% |
| 99 | Austria | 9,113,570 | Europe | 83.9K | 110 | 0.11% |
| 100 | Belarus | 8,997,600 | Europe | 207.6K | 44 | 0.11% |
| 101 | Switzerland | 8,967,410 | Europe | 41.3K | 227 | 0.11% |
| 102 | Sierra Leone | 8,819,790 | Africa | 71.7K | 122 | 0.11% |
| 103 | Laos | 7,873,050 | Asia | 236.8K | 34 | 0.10% |
| 104 | Turkmenistan | 7,618,850 | Asia | 488.1K | 16 | 0.10% |
| 105 | Libya | 7,458,560 | Africa | 1.8M | 4 | 0.09% |
| 106 | Hong Kong | 7,396,080 | Asia | 1.1K | 7,044 | 0.09% |
| 107 | Kyrgyzstan | 7,295,030 | Asia | 200K | 38 | 0.09% |
| 108 | Paraguay | 7,013,080 | South America | 406.8K | 18 | 0.09% |
| 109 | Nicaragua | 7,007,500 | North America | 130.4K | 58 | 0.09% |
| 110 | Bulgaria | 6,714,560 | Europe | 110.9K | 62 | 0.08% |
| 111 | Serbia | 6,689,040 | Europe | 88.4K | 76 | 0.08% |
| 112 | Republic of the Congo | 6,484,440 | Africa | 342K | 19 | 0.08% |
| 113 | El Salvador | 6,365,500 | North America | 21K | 307 | 0.08% |
| 114 | Denmark | 6,002,510 | Europe | 43.1K | 150 | 0.07% |
| 115 | Singapore | 5,870,750 | Asia | 710 | 8,177 | 0.07% |
| 116 | Lebanon | 5,849,420 | Asia | 10.5K | 572 | 0.07% |
| 117 | Liberia | 5,731,210 | Africa | 111.4K | 60 | 0.07% |
| 118 | Finland | 5,623,330 | Europe | 338.4K | 19 | 0.07% |
| 119 | Norway | 5,623,070 | Europe | 323.8K | 15 | 0.07% |
| 120 | Palestine | 5,589,620 | Asia | 6.2K | 929 | 0.07% |
| 121 | Central African Republic | 5,513,280 | Africa | 623K | 9 | 0.07% |
| 122 | Oman | 5,494,690 | Asia | 309.5K | 18 | 0.07% |
| 123 | Slovakia | 5,474,880 | Europe | 49K | 112 | 0.07% |
| 124 | Mauritania | 5,315,060 | Africa | 1M | 5 | 0.07% |
| 125 | Ireland | 5,308,040 | Europe | 70.3K | 77 | 0.07% |
| 126 | New Zealand | 5,251,900 | Oceania | 270.5K | 20 | 0.07% |
| 127 | Costa Rica | 5,152,950 | North America | 51.1K | 101 | 0.06% |
| 128 | Kuwait | 5,026,080 | Asia | 17.8K | 282 | 0.06% |
| 129 | Panama | 4,571,190 | North America | 75.4K | 62 | 0.06% |
| 130 | Croatia | 3,848,160 | Europe | 56.6K | 69 | 0.05% |
| 131 | Georgia | 3,806,670 | Asia | 69.7K | 55 | 0.05% |
| 132 | Eritrea | 3,607,000 | Africa | 117.6K | 30 | 0.05% |
| 133 | Mongolia | 3,517,100 | Asia | 1.6M | 2 | 0.04% |
| 134 | Uruguay | 3,384,690 | South America | 181K | 19 | 0.04% |
| 135 | Puerto Rico | 3,235,290 | North America | 8.9K | 365 | 0.04% |
| 136 | Bosnia and Herzegovina | 3,140,100 | Europe | 51.2K | 61 | 0.04% |
| 137 | Qatar | 3,115,890 | Asia | 11.6K | 271 | 0.04% |
| 138 | Namibia | 3,092,820 | Africa | 825.6K | 4 | 0.04% |
| 139 | Moldova | 2,996,110 | Europe | 33.8K | 91 | 0.04% |
| 140 | Armenia | 2,952,360 | Asia | 29.7K | 104 | 0.04% |
| 141 | Jamaica | 2,837,080 | North America | 11K | 262 | 0.04% |
| 142 | Lithuania | 2,830,140 | Europe | 65.3K | 45 | 0.04% |
| 143 | Gambia | 2,822,090 | Africa | 10.7K | 279 | 0.04% |
| 144 | Albania | 2,771,510 | Europe | 28.7K | 101 | 0.03% |
| 145 | Gabon | 2,593,130 | Africa | 267.7K | 10 | 0.03% |
| 146 | Botswana | 2,562,120 | Africa | 582K | 5 | 0.03% |
| 147 | Lesotho | 2,363,320 | Africa | 30.4K | 78 | 0.03% |
| 148 | Guinea-Bissau | 2,249,520 | Africa | 36.1K | 80 | 0.03% |
| 149 | Slovenia | 2,117,070 | Europe | 20.3K | 105 | 0.03% |
| 150 | Equatorial Guinea | 1,938,430 | Africa | 28.1K | 69 | 0.02% |
| 151 | Latvia | 1,853,560 | Europe | 64.6K | 30 | 0.02% |
| 152 | North Macedonia | 1,813,790 | Europe | 25.7K | 72 | 0.02% |
| 153 | Bahrain | 1,643,330 | Asia | 765 | 2,093 | 0.02% |
| 154 | Trinidad and Tobago | 1,511,160 | North America | 5.1K | 295 | 0.02% |
| 155 | Timor-Leste | 1,418,520 | Asia | 14.9K | 95 | 0.02% |
| 156 | Cyprus | 1,370,750 | Asia | 9.3K | 148 | 0.02% |
| 157 | Estonia | 1,344,230 | Europe | 45.2K | 31 | 0.02% |
| 158 | Mauritius | 1,268,280 | Africa | 2K | 625 | 0.02% |
| 159 | Eswatini | 1,256,170 | Africa | 17.4K | 73 | 0.02% |
| 160 | Djibouti | 1,184,080 | Africa | 23.2K | 51 | 0.01% |
| 161 | Fiji | 933,154 | Oceania | 18.3K | 51 | 0.01% |
| 162 | Comoros | 882,847 | Africa | 1.9K | 474 | 0.01% |
| 163 | Reunion | 882,405 | Africa | 2.5K | 351 | 0.01% |
| 164 | Solomon Islands | 838,645 | Oceania | 28.9K | 30 | 0.01% |
| 165 | Guyana | 835,986 | South America | 215K | 4 | 0.01% |
| 166 | Bhutan | 796,682 | Asia | 38.4K | 21 | 0.01% |
| 167 | Macau | 722,007 | Asia | 33 | 21,946 | 0.01% |
| 168 | Luxembourg | 680,453 | Europe | 2.6K | 264 | 0.01% |
| 169 | Suriname | 639,850 | South America | 163.8K | 4 | 0.01% |
| 170 | Montenegro | 632,729 | Europe | 13.8K | 47 | 0.01% |
| 171 | Western Sahara | 600,904 | Africa | 266K | 2 | 0.01% |
| 172 | Malta | 545,405 | Europe | 316 | 1,704 | 0.01% |
| 173 | Maldives | 529,676 | Asia | 300 | 1,766 | 0.01% |
| 174 | Cape Verde | 527,326 | Africa | 4K | 131 | 0.01% |
| 175 | Brunei | 466,330 | Asia | 5.8K | 88 | 0.01% |
| 176 | Belize | 422,924 | North America | 23K | 19 | 0.01% |
| 177 | Bahamas | 403,033 | North America | 13.9K | 40 | 0.01% |
| 178 | Iceland | 398,266 | Europe | 103K | 4 | < 0.01% |
| 179 | Guadeloupe | 373,791 | 1.6K | 230 | < 0.01% | |
| 180 | Martinique | 340,439 | 1.1K | 302 | < 0.01% | |
| 181 | Mayotte | 337,011 | 374 | 901 | < 0.01% | |
| 182 | Vanuatu | 335,169 | Oceania | 12.2K | 27 | < 0.01% |
| 183 | French Guiana | 313,666 | 83.5K | 4 | < 0.01% | |
| 184 | New Caledonia | 295,333 | 18.6K | 16 | < 0.01% | |
| 185 | Barbados | 282,623 | North America | 430 | 657 | < 0.01% |
| 186 | French Polynesia | 282,465 | 4.2K | 81 | < 0.01% | |
| 187 | Sao Tome and Principe | 240,254 | Africa | 964 | 250 | < 0.01% |
| 188 | Samoa | 219,306 | Oceania | 2.8K | 79 | < 0.01% |
| 189 | Curacao | 185,487 | 444 | 418 | < 0.01% | |
| 190 | Saint Lucia | 180,149 | 616 | 295 | < 0.01% | |
| 191 | Guam | 168,999 | 549 | 313 | < 0.01% | |
| 192 | Kiribati | 136,488 | Oceania | 811 | 169 | < 0.01% |
| 193 | Seychelles | 132,779 | Africa | 452 | 289 | < 0.01% |
| 194 | Grenada | 117,303 | North America | 344 | 345 | < 0.01% |
| 195 | Micronesia | 113,683 | Oceania | 702 | 162 | < 0.01% |
| 196 | Aruba | 108,147 | 180 | 601 | < 0.01% | |
| 197 | Jersey | 103,989 | 116 | 867 | < 0.01% | |
| 198 | Tonga | 103,742 | Oceania | 747 | 144 | < 0.01% |
| 199 | Saint Vincent and the Grenadines | 99,924 | North America | 389 | 256 | < 0.01% |
| 200 | Antigua and Barbuda | 94,209 | North America | 442 | 214 | < 0.01% |
| 201 | United States Virgin Islands | 84,138 | 347 | 242 | < 0.01% | |
| 202 | Isle of Man | 84,118 | 572 | 148 | < 0.01% | |
| 203 | Andorra | 82,904 | Europe | 468 | 176 | < 0.01% |
| 204 | Cayman Islands | 75,844 | 264 | 316 | < 0.01% | |
| 205 | Dominica | 65,871 | North America | 751 | 88 | < 0.01% |
| 206 | Bermuda | 64,555 | North America | 54 | 1,195 | < 0.01% |
| 207 | Guernsey | 64,477 | 78 | 1,023 | < 0.01% | |
| 208 | Faroe Islands | 56,002 | 1.4K | 41 | < 0.01% | |
| 209 | Greenland | 55,745 | North America | 2.2M | 0.14 | < 0.01% |
| 210 | Saint Kitts and Nevis | 46,922 | North America | 261 | 180 | < 0.01% |
| 211 | Turks and Caicos Islands | 46,855 | 948 | 49 | < 0.01% | |
| 212 | American Samoa | 46,029 | 199 | 230 | < 0.01% | |
| 213 | Sint Maarten | 43,923 | 34 | 1,292 | < 0.01% | |
| 214 | Northern Mariana Islands | 43,541 | 464 | 95 | < 0.01% | |
| 215 | Liechtenstein | 40,128 | Europe | 160 | 251 | < 0.01% |
| 216 | Gibraltar | 40,126 | Europe | 7 | 5,901 | < 0.01% |
| 217 | British Virgin Islands | 39,732 | 151 | 265 | < 0.01% | |
| 218 | Monaco | 38,341 | Europe | 2 | 19,171 | < 0.01% |
| 219 | Marshall Islands | 36,282 | Oceania | 181 | 202 | < 0.01% |
| 220 | San Marino | 33,572 | Europe | 61 | 560 | < 0.01% |
| 221 | Saint Martin | 24,941 | 53 | 499 | < 0.01% | |
| 222 | Palau | 17,663 | Oceania | 459 | 38 | < 0.01% |
| 223 | Anguilla | 14,728 | 91 | 162 | < 0.01% | |
| 224 | Cook Islands | 13,263 | 240 | 55 | < 0.01% | |
| 225 | Nauru | 12,025 | Oceania | 21 | 601 | < 0.01% |
| 226 | Saint Barthelemy | 11,414 | 21 | 457 | < 0.01% | |
| 227 | Wallis and Futuna | 11,194 | 274 | 41 | < 0.01% | |
| 228 | Tuvalu | 9,492 | Oceania | 26 | 316 | < 0.01% |
| 229 | Saint Pierre and Miquelon | 5,574 | 242 | 23 | < 0.01% | |
| 230 | Montserrat | 4,359 | 102 | 43 | < 0.01% | |
| 231 | Falkland Islands | 3,469 | 12.2K | 0.28 | < 0.01% | |
| 232 | Tokelau | 2,608 | 12 | 261 | < 0.01% | |
| 233 | Niue | 1,821 | 261 | 7 | < 0.01% | |
| 234 | Vatican City | 501 | Europe | < 1 | 1,139 | < 0.01% |
| Source : | worldpopulationreview | |||||
Top 5 - Least Populated Independent Nation In The World

Vatican
501

Tuvalu
9,492

Nauru
12,025

Palau
17,663

San Marino
24,941
Highest Population Country in the World: Guide to Global Demographics
The global landscape is constantly shifting, but nothing defines the 21st century more than the movement of people. As of mid-2024, the world reached a historic milestone when India officially surpassed China to become the most populous nation on Earth. Understanding these rankings is crucial for grasping global economic power, resource management, and future environmental challenges.
Key Demographic Shifts: India vs. China
The transition of the top spot from China to India is a landmark event in human history.
India’s Growth: India’s population continues to grow due to a relatively high fertility rate and a massive “youth bulge,” with more than half the population under the age of 30.
China’s Transition: For the first time in decades, China’s population has begun to decline. This is attributed to decades of the “One-Child Policy,” rising living costs, and a rapidly aging workforce.
Major Drivers of Population Change
To understand why some countries are growing while others shrink, demographers look at three evergreen factors:
Fertility Rates: The average number of children born to a woman is the primary driver of growth. While global rates are falling (from 5 children per woman in 1950 to about 2.3 today), rates remain high in regions like Sub-Saharan Africa.
Increased Longevity: Advances in medicine and sanitation have doubled global life expectancy since 1900, meaning people are living longer and contributing to higher total population counts.
International Migration: For many developed nations like the U.S. and Germany, immigration is the main factor preventing population decline as domestic birth rates fall below replacement levels.
Challenges and Opportunities of a Growing World
A high population brings both significant strain and immense potential:
Environmental Impact: Larger populations increase the demand for energy and food, which can lead to higher greenhouse gas emissions and biodiversity loss if not managed sustainably.
Resource Management: Rapid growth in countries with developing infrastructure can put extreme pressure on water, food security, and urban housing.
Economic Dividend: A large, young population (like India’s or Nigeria’s) can provide a massive workforce that drives innovation, entrepreneurship, and global market demand.
Frequently Asked Questions
Which country will be the most populated in 2050?
India is expected to remain the most populous. However, Nigeria is projected to grow the fastest and may surpass the United States as the third most populous country by mid-century.
When will the world population stop growing?
The United Nations projects that the global population will peak at approximately 10.3 to 10.4 billion in the 2080s before beginning a slow, natural decline.
Why is population density important?
Total population tells you “how many,” but density tells you “how crowded.” High-density areas often face higher risks of communicable diseases and environmental pollution but also benefit from more efficient public transport and infrastructure.
