Largest cities in the state of Rio Grande do Sul, Brazil by population, in descending order:
| Rank | align=center | City ! | Population (2006 est.) | Land Area km2. | Population Density per km2. | Region | |
|---|---|---|---|---|---|---|---|
| 1 | align=left | 1,440,939 | 497 | 2816 | Porto Alegre | ||
| 2 | align=left | 412,053 | 1644 | 251 | Northeast | ||
| 3 | align=left | 346,452 | 1610 | 215 | Southeast | ||
| 4 | align=left | 333,322 | 131 | 2543 | Porto Alegre | ||
| 5 | align=left | 270,763 | 498 | 544 | Porto Alegre | ||
| 6 | align=left | 270,073 | 1823 | 152 | West Central | ||
| 7 | align=left | 261,970 | 1494 | 175 | Porto Alegre | ||
| 8 | align=left | 258,754 | 224 | 1155 | Porto Alegre | ||
| 9 | align=left | 214,953 | 71 | 3035 | Porto Alegre | ||
| 10 | align=left | 212,498 | 102 | 2077 | Porto Alegre | ||
| 11 | align=left | 196,982 | 2814 | 70 | Southeast | ||
| 12 | align=left | 188,302 | 780 | 241 | Northeast | ||
| 13 | align=left | 136,364 | 5716 | 24 | Southwest | ||
| 14 | align=left | 135,956 | 59 | 2318 | Porto Alegre | ||
| 15 | align=left | 122,461 | 4096 | 30 | Southwest | ||
| 16 | align=left | 121,880 | 44 | 2785 | Porto Alegre | ||
| 17 | align=left | 119,803 | 733 | 163 | East Central | ||
| 18 | align=left | 105,808 | 377 | 281 | Porto Alegre | ||
| 19 | align=left | 104,423 | 277 | 377 | Northeast | ||
| 20 | align=left | 100,251 | 431 | 233 | Northeast | ||
| 21 | align=left | 98,681 | 6950 | 14 | Southwest | ||
| 22 | align=left | 89,669 | 3735 | 24 | East Central | ||
| 23 | align=left | 88,513 | 7804 | 11 | Southwest | ||
| 24 | align=left | 87,070 | 28 | 3225 | Porto Alegre | ||
| 25 | align=left | 80,117 | 680 | 118 | Northwest | ||
| 26 | align=left | 79,575 | 689 | 115 | Northwest | ||
| 27 | align=left | 78,996 | 138 | 572 | Porto Alegre | ||
| 28 | align=left | 69,989 | 490 | 143 | Northwest | ||
| 29 | align=left | 69,067 | 1360 | 51 | Northwest | ||
| 30 | align=left | 67,788 | 3616 | 19 | Southwest | ||
| 31 | align=left | 67,557 | 90 | 751 | East Central | ||
| 32 | align=left | 67,373 | 773 | 87 | East Central | ||
| 33 | align=left | 64,338 | 1680 | 38 | Porto Alegre | ||
| 34 | align=left | 62,966 | 362 | 174 | Northeast | ||
| 35 | align=left | 62,543 | 5020 | 12 | Southwest | ||
| 36 | align=left | 62,261 | 2124 | 29 | Northeast | ||
| 37 | align=left | 61,973 | 665 | 93 | Northwest | ||
| 38 | align=left | 60,551 | 420 | 144 | Porto Alegre | ||
| 39 | align=left | 60,481 | 457 | 132 | Porto Alegre | ||
| 40 | align=left | 58,558 | 61 | 960 | Porto Alegre | ||
| 41 | align=left | 54,223 | 109 | 497 | Porto Alegre | ||
| 42 | align=left | 52,245 | 3525 | 15 | Southeast | ||
| 43 | align=left | 52,007 | 2413 | 22 | West Central | ||
| 44 | align=left | 45,483 | 2036 | 22 | Southeast | ||
| 45 | align=left | 42,842 | 3404 | 13 | Southwest | ||
| 46 | align=left | 42,151 | 5192 | 8 | Southwest | ||
| 47 | align=left | 41,497 | 4370 | 9 | Southwest | ||
| 48 | align=left | 40,626 | 663 | 61 | Porto Alegre | ||
| 49 | align=left | 40,263 | 52 | 774 | Porto Alegre | ||
| 50 | align=left | 40,147 | 255 | 157 | Porto Alegre |