The following is a summary of censuses carried out in the Soviet Union:
| Year | Territory (km2) | Total population | Rank | Density per km2 | Change | Urban population | Share | Males | Share | Females | Share | Largest city | Second largest city | Third largest city | Ethnic Russians | Share | Ethnic minorities | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21 176 187 | 147 027 915 | 3rd | 26 314 114 | 71 043 352 | 75 984 563 | Moscow (2 025 947) | Leningrad (1 590 770) | Kiev (513 637) | 77 791 124 |
| [a] | |||||||
| 162 039 470 | 43 729 514 | 75 789 892 | 84 331 656 | Moscow (3 798 078) | Leningrad (est. 2 814 500) | Kiev (775 850) | 93 933 065 |
| [b] [1] | |||||||||
| 170 557 093 | 56 125 139 | 81 694 889 | 88 862 204 | Moscow (4 131 633) | Leningrad (3 191 304) | Kiev (846 724) | 99 591 520 |
| [c] [2] | |||||||||
| 22 402 200 | 208 826 650 | 99 977 695 | 94 050 303 | 114 776 347 | Moscow (5 045 905) | Leningrad (3 121 196) | Kiev (1 104 334) | 114 113 579 |
| [d] [3] | ||||||||
| 241 720 134 | 135 991 514 | 111 399 377 | 130 320 757 | Moscow (6 941 961) | Leningrad (3 949 501) | Kiev (1 631 908) | 129 015 140 |
| ||||||||||
| 262 436 227 | 163 585 944 | 122 328 833 | 140 107 394 | Moscow (7 830 509) | Leningrad (4 588 183) | Kiev (2 143 855) | 137 397 089 |
| ||||||||||
| 286 730 817 | 188 813 355 | 135 360 790 | 151 370 027 | Moscow (8 769 117) | Leningrad (5 023 506) | Kiev (2 587 945) | 145 155 489 |
| [e] [4] |