Soviet census
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 | 6.94 | 7.5% | 26 314 114 | 17.9% | 71 043 352 | 48.3% | 75 984 563 | 51.7% | Moscow (2 025 947) | Leningrad (1 590 770) | Kiev (513 637) | 77 791 124 | 52.9% | 
 | ||
| 162 039 470 | 7.65 | 10.2% | 43 729 514 | 27.0% | 75 789 892 | 46.8% | 84 331 656 | 53.2% | Moscow (3 798 078) | Leningrad (est. 2 814 500) | Kiev (775 850) | 93 933 065 | 58.0% | 
 | ||||
| 170 557 093 | 8.05 | 5.3% | 56 125 139 | 32.9% | 81 694 889 | 48.0% | 88 862 204 | 52.0% | Moscow (4 131 633) | Leningrad (3 191 304) | Kiev (846 724) | 99 591 520 | 58.4% | 
 | ||||
| 22 402 200 | 208 826 650 | 9.32 | 22.4% | 99 977 695 | 47.9% | 94 050 303 | 45.0% | 114 776 347 | 55.0% | Moscow (5 045 905) | Leningrad (3 121 196) | Kiev (1 104 334) | 114 113 579 | 54.6% | 
 | |||
| 241 720 134 | 10.79 | 15.7% | 135 991 514 | 56.2% | 111 399 377 | 46.1% | 130 320 757 | 53.9% | Moscow (6 941 961) | Leningrad (3 949 501) | Kiev (1 631 908) | 129 015 140 | 53.4% | 
 | ||||
| 262 436 227 | 11.71 | 8.6% | 163 585 944 | 62.3% | 122 328 833 | 46.6% | 140 107 394 | 53.4% | Moscow (7 830 509) | Leningrad (4 588 183) | Kiev (2 143 855) | 137 397 089 | 52.3% | 
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| 286 730 817 | 12.80 | 9.3% | 188 813 355 | 65.8% | 135 360 790 | 47.2% | 151 370 027 | 52.8% | Moscow (8 769 117) | Leningrad (5 023 506) | Kiev (2 587 945) | 145 155 489 | 50.6% | 
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