Rail lines are the length of railway route available for train service, irrespective of the number of parallel tracks.
| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Camboja | 601 | |||||||||||||
| China | 58.656 | 62.200 | 66.239 | 72.487 | 85.843 | 79.306 | 85.320 | 89.966 | 91.675 | 93.742 | 96.353 | 102.462 | 106.235 | 109.767 |
| Hong Kong | 113 | 230 | ||||||||||||
| Indonésia | 4.684 | 4.828 | 4.861 | 5.107 | 5.196 | 5.357 | 5.384 | 4.749 | 5.483 | 5.483 | ||||
| Japão | 20.140 | 20.087 | ||||||||||||
| Coreia do Sul | 3.123 | 3.392 | 3.618 | 3.637 | 3.650 | 3.666 | 3.668 | 3.944 | 4.071 | 4.071 | 4.200 | 4.109 | 4.285 | 4.309 |
| Malásia | 1.636 | 1.667 | 2.210 | 2.250 | 2.773 | 1.655 | 1.655 | 1.655 | 1.655 | |||||
| Mongólia | 1.810 | 1.810 | 1.814 | 1.815 | 1.810 | 1.810 | 1.823 | 1.810 | 1.810 | 1.810 | 1.810 | 1.814 | 1.821 | 1.821 |
| Filipinas | 509 | 509 | ||||||||||||
| Tailândia | 4.044 | 4.458 | 4.458 | 3.742 | 3.742 | 4.092 | ||||||||
| Vietnam | 3.142 | 3.147 | 2.577 | 2.347 | 2.347 | 2.347 | 3.186 | 3.186 | 2.581 | 2.367 | 2.382 | 2.481 | 3.159 | 3.159 |
| Armênia | 843 | 826 | 703 | 703 | 679 | 686 | 698 | 698 | 698 | 698 | ||||
| Azerbaijão | 2.116 | 2.122 | 2.079 | 2.079 | 2.068 | 2.068 | 2.066 | 2.068 | 2.074 | 2.132 | 2.133 | 2.140 | 2.239 | 2.139 |
| Geórgia | 1.562 | 1.336 | 1.566 | 1.262 | 1.578 | 1.453 | 1.453 | 1.491 | 1.415 | 1.285 | 1.285 | 1.378 | 1.411 | 1.387 |
| Cazaquistão | 13.545 | 14.204 | 14.184 | 14.319 | 14.759 | 14.767 | 14.767 | 14.767 | 15.529 | 16.040 | 16.061 | 16.061 | 16.063 | 16.006 |
| Quirquistão | 417 | 417 | 417 | 417 | 417 | 417 | 424 | 424 | 424 | 424 | 424 | 424 | 424 | 417 |
| Tadjiquistão | 533 | 617 | 621 | 621 | 608 | 587 | 597 | 597 | 620 | 620 | 620 | 620 | 662 | 620 |
| Turcomenistão | 2.521 | 2.529 | 3.115 | 3.115 | 3.115 | 3.115 | 3.115 | 6.230 | 6.230 | 7.680 | 7.680 | |||
| Uzbequistão | 3.645 | 4.014 | 4.227 | 4.258 | 4.192 | 4.186 | 4.202 | 4.238 | 4.304 | 4.642 | 4.642 | 4.735 | 4.732 | 4.732 |
| Bangladesh | 2.745 | 2.855 | 2.835 | 2.791 | 2.877 | 2.877 | 2.791 | 2.877 | 2.877 | 2.877 | 2.877 | 2.877 | ||
| Índia | 62.759 | 63.485 | 63.974 | 64.460 | 64.600 | 65.436 | 65.808 | 66.030 | 66.687 | 67.368 | 69.249 | 67.414 | 67.956 | 68.103 |
| Paquistão | 7.791 | 7.791 | 7.791 | 7.791 | 7.791 | 7.791 | 7.784 | 7.791 | 7.791 | 7.791 | 7.791 | 7.791 | ||
| Sri Lanka | 1.148 | 1.148 | 1.254 | 1.567 | 1.562 | 1.562 | 1.562 | 1.562 |