Irkutsk's 2025 population is now estimated at 648,468. In 1950, the population of Irkutsk was 311,044. Irkutsk has grown by 1,218 in the last year, which represents a 0.19% annual change.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Irkutsk, which typically includes Irkutsk's population in addition to adjacent suburban areas.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Moscow | 12,737,400 | 0.2% |
| Saint Petersburg | 5,597,340 | 0.28% |
| Novosibirsk | 1,706,660 | 0.3% |
| Yekaterinburg | 1,537,000 | 0.26% |
| Kazan | 1,299,580 | 0.26% |
| Nizhniy Novgorod | 1,249,760 | -0.04% |
| Chelyabinsk | 1,246,210 | 0.19% |
| Omsk | 1,180,820 | 0.01% |
| Krasnoyarsk | 1,177,840 | 0.4% |
| Samara | 1,153,710 | -0.06% |
| Ufa | 1,148,400 | 0.14% |
| Rostov-on-Don | 1,140,390 | 0.07% |
| Voronezh | 1,086,000 | 0.21% |
| Perm | 1,085,990 | 0.17% |
| Krasnodar | 1,017,530 | 0.69% |
| Volgograd | 992,268 | -0.11% |
| Tyumen | 926,519 | 1.05% |
| Saratov | 837,323 | -0.04% |
| Tolyatti | 689,506 | -0.14% |
| Izhevsk | 652,790 | 0.05% |
| Irkutsk | 648,468 | 0.19% |
| Khabarovsk | 644,284 | 0.21% |
| Barnaul | 642,415 | 0.07% |
| Ulyanovsk | 622,745 | -0.01% |
| Yaroslavl | 613,355 | 0.04% |
| Tomsk | 611,949 | 0.32% |
| Vladivostok | 609,863 | 0.03% |
| Makhachkala | 602,853 | 0.08% |
| Kemerovo | 570,586 | 0.12% |
| Orenburg | 570,039 | 0.05% |
| Balashikha | 569,163 | 1.12% |
| Novokuznetsk | 546,951 | -0.05% |
| Ryazan | 540,326 | 0.03% |
| Naberezhnye Tchelny | 536,536 | 0.06% |
| Astrakhan | 534,778 | 0.02% |
| Penza | 520,546 | -0.03% |
| Kirov | 520,243 | 0.18% |
| Cheboksary | 517,136 | 0.27% |
| Lipetsk | 502,842 | -0.07% |
| Kaliningrad | 495,031 | 0.28% |
| Sochi | 481,033 | 0.75% |
| Kursk | 475,607 | 0.28% |
| Tula | 462,035 | -0.23% |
| Stavropol | 461,752 | 0.3% |
| Ulan-Ude | 451,894 | 0.22% |
| Tver | 427,338 | 0.09% |
| Magnitogorsk | 420,923 | 0.03% |
| Belgorod | 420,057 | 0.34% |
| Surgut | 413,754 | 0.66% |
| Ivanovo | 398,393 | -0.1% |
| Bryansk | 390,872 | -0.19% |
| Chita | 363,732 | 0.23% |
| Vladimir | 360,331 | 0.06% |
| Kaluga | 352,870 | 0.15% |
| Arkhangelsk | 347,819 | -0.05% |
| Nizhny Tagil | 343,700 | -0.16% |
| Podolsk | 343,650 | 0.66% |
| Yakutsk | 343,581 | 0.53% |
| Volzhsky | 331,799 | 0.08% |
| Smolensk | 326,841 | -0.04% |
| Saransk | 326,515 | 0.18% |
| Cherepovets | 319,500 | 0.01% |
| Vologda | 318,455 | 0.08% |
| Orel | 313,814 | -0.07% |
| Kurgan | 305,791 | -0.24% |
| Vladikavkaz | 297,145 | -0.15% |
