Rock Island County, Illinois
Precinct data
Results by precinct
240 precincts · 64,046 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -ANDALUSIAANDALUSIA | 519 | 892 | 39 | 1,450 | 35.8% | 61.5% | R+25.7 |
|---|---|---|---|---|---|---|---|
| Precinct -COAL VALLEY 3COAL VALLEY 3 | 617 | 751 | 37 | 1,405 | 43.9% | 53.5% | R+9.5 |
| Precinct -BLACKHAWK 3BLACKHAWK 3 | 609 | 608 | 26 | 1,243 | 49.0% | 48.9% | D+0.1 |
| Precinct -BOWLING 1BOWLING 1 | 468 | 734 | 36 | 1,238 | 37.8% | 59.3% | R+21.5 |
| Precinct -COECOE | 395 | 708 | 27 | 1,130 | 35.0% | 62.7% | R+27.7 |
| Precinct -SOUTH MOLINE 4SOUTH MOLINE 4 | 569 | 465 | 29 | 1,063 | 53.5% | 43.7% | D+9.8 |
| Precinct -HAMPTON 1HAMPTON 1 | 387 | 546 | 20 | 953 | 40.6% | 57.3% | R+16.7 |
| Precinct -BLACKHAWK 7BLACKHAWK 7 | 461 | 410 | 29 | 900 | 51.2% | 45.6% | D+5.7 |
| Precinct -SOUTH MOLINE 29SOUTH MOLINE 29 | 522 | 314 | 41 | 877 | 59.5% | 35.8% | D+23.7 |
| Precinct -SOUTH MOLINE 9SOUTH MOLINE 9 | 441 | 396 | 28 | 865 | 51.0% | 45.8% | D+5.2 |
| Precinct -SOUTH ROCK ISLAND 12SOUTH ROCK ISLAND 12 | 472 | 334 | 19 | 825 | 57.2% | 40.5% | D+16.7 |
| Precinct -SOUTH MOLINE 13SOUTH MOLINE 13 | 453 | 344 | 27 | 824 | 55.0% | 41.7% | D+13.2 |
| Precinct -SOUTH MOLINE 11SOUTH MOLINE 11 | 441 | 323 | 33 | 797 | 55.3% | 40.5% | D+14.8 |
| Precinct -PORT BYRONPORT BYRON | 336 | 426 | 22 | 784 | 42.9% | 54.3% | R+11.5 |
| Precinct -HAMPTON 17HAMPTON 17 | 377 | 386 | 16 | 779 | 48.4% | 49.6% | R+1.2 |
| Precinct -HAMPTON 14HAMPTON 14 | 454 | 298 | 25 | 777 | 58.4% | 38.4% | D+20.1 |
| Precinct -SOUTH MOLINE 7SOUTH MOLINE 7 | 413 | 337 | 20 | 770 | 53.6% | 43.8% | D+9.9 |
| Precinct -SOUTH ROCK ISLAND 13SOUTH ROCK ISLAND 13 | 425 | 318 | 20 | 763 | 55.7% | 41.7% | D+14.0 |
| Precinct -SOUTH ROCK ISLAND 3SOUTH ROCK ISLAND 3 | 493 | 226 | 28 | 747 | 66.0% | 30.3% | D+35.7 |
| Precinct -BLACKHAWK 4BLACKHAWK 4 | 315 | 404 | 22 | 741 | 42.5% | 54.5% | R+12.0 |
| Precinct -HAMPTON 2HAMPTON 2 | 320 | 405 | 14 | 739 | 43.3% | 54.8% | R+11.5 |
| Precinct -BOWLING 2BOWLING 2 | 290 | 410 | 18 | 718 | 40.4% | 57.1% | R+16.7 |
| Precinct -SOUTH MOLINE 17SOUTH MOLINE 17 | 407 | 280 | 17 | 704 | 57.8% | 39.8% | D+18.0 |
| Precinct -COAL VALLEY 1COAL VALLEY 1 | 292 | 383 | 20 | 695 | 42.0% | 55.1% | R+13.1 |
| Precinct -SOUTH ROCK ISLAND 5SOUTH ROCK ISLAND 5 | 426 | 245 | 15 | 686 | 62.1% | 35.7% | D+26.4 |
| Precinct -SOUTH ROCK ISLAND 14SOUTH ROCK ISLAND 14 | 390 | 257 | 27 | 674 | 57.9% | 38.1% | D+19.7 |
| Precinct -SOUTH MOLINE 8SOUTH MOLINE 8 | 302 | 341 | 26 | 669 | 45.1% | 51.0% | R+5.8 |
| Precinct -SOUTH ROCK ISLAND 11SOUTH ROCK ISLAND 11 | 358 | 284 | 20 | 662 | 54.1% | 42.9% | D+11.2 |
| Precinct -SOUTH MOLINE 18SOUTH MOLINE 18 | 394 | 251 | 14 | 659 | 59.8% | 38.1% | D+21.7 |
| Precinct -SOUTH MOLINE 19SOUTH MOLINE 19 | 323 | 314 | 20 | 657 | 49.2% | 47.8% | D+1.4 |
| Precinct -HAMPTON 16HAMPTON 16 | 310 | 320 | 18 | 648 | 47.8% | 49.4% | R+1.5 |
| Precinct -SOUTH MOLINE 6SOUTH MOLINE 6 | 346 | 272 | 28 | 646 | 53.6% | 42.1% | D+11.5 |
| Precinct -SOUTH ROCK ISLAND 6SOUTH ROCK ISLAND 6 | 397 | 232 | 14 | 643 | 61.7% | 36.1% | D+25.7 |
| Precinct -RURALRURAL | 232 | 390 | 20 | 642 | 36.1% | 60.7% | R+24.6 |
| Precinct -SOUTH ROCK ISLAND 4SOUTH ROCK ISLAND 4 | 382 | 250 | 10 | 642 | 59.5% | 38.9% | D+20.6 |
| Precinct -SOUTH ROCK ISLAND 8SOUTH ROCK ISLAND 8 | 375 | 245 | 21 | 641 | 58.5% | 38.2% | D+20.3 |
| Precinct -SOUTH ROCK ISLAND 10SOUTH ROCK ISLAND 10 | 390 | 234 | 13 | 637 | 61.2% | 36.7% | D+24.5 |
| Precinct -SOUTH MOLINE 27SOUTH MOLINE 27 | 354 | 252 | 28 | 634 | 55.8% | 39.7% | D+16.1 |
| Precinct -ROCK ISLAND 10ROCK ISLAND 10 | 401 | 198 | 25 | 624 | 64.3% | 31.7% | D+32.5 |
| Precinct -SOUTH MOLINE 28SOUTH MOLINE 28 | 308 | 287 | 20 | 615 | 50.1% | 46.7% | D+3.4 |
| Precinct -MOLINE 3MOLINE 3 | 368 | 229 | 14 | 611 | 60.2% | 37.5% | D+22.7 |
| Precinct -HAMPTON 10HAMPTON 10 | 340 | 250 | 19 | 609 | 55.8% | 41.1% | D+14.8 |
| Precinct -MOLINE 4MOLINE 4 | 359 | 235 | 15 | 609 | 58.9% | 38.6% | D+20.4 |
| Precinct -HAMPTON 15HAMPTON 15 | 322 | 258 | 15 | 595 | 54.1% | 43.4% | D+10.8 |
| Precinct -SOUTH MOLINE 20SOUTH MOLINE 20 | 349 | 218 | 24 | 591 | 59.1% | 36.9% | D+22.2 |
| Precinct -MOLINE 5MOLINE 5 | 351 | 217 | 16 | 584 | 60.1% | 37.2% | D+22.9 |
| Precinct -MOLINE 9MOLINE 9 | 316 | 242 | 23 | 581 | 54.4% | 41.7% | D+12.7 |
| Precinct -BLACKHAWK 6BLACKHAWK 6 | 315 | 245 | 17 | 577 | 54.6% | 42.5% | D+12.1 |
| Precinct -SOUTH MOLINE 16SOUTH MOLINE 16 | 330 | 235 | 12 | 577 | 57.2% | 40.7% | D+16.5 |
| Precinct -SOUTH MOLINE 22SOUTH MOLINE 22 | 348 | 199 | 15 | 562 | 61.9% | 35.4% | D+26.5 |
| Precinct -HAMPTON 5HAMPTON 5 | 306 | 237 | 15 | 558 | 54.8% | 42.5% | D+12.4 |
| Precinct -MOLINE 20MOLINE 20 | 342 | 204 | 12 | 558 | 61.3% | 36.6% | D+24.7 |
| Precinct -SOUTH MOLINE 2SOUTH MOLINE 2 | 351 | 197 | 9 | 557 | 63.0% | 35.4% | D+27.6 |
| Precinct -MOLINE 16MOLINE 16 | 315 | 212 | 15 | 542 | 58.1% | 39.1% | D+19.0 |
| Precinct -HAMPTON 12HAMPTON 12 | 276 | 235 | 15 | 526 | 52.5% | 44.7% | D+7.8 |
| Precinct -ROCK ISLAND 15ROCK ISLAND 15 | 314 | 187 | 11 | 512 | 61.3% | 36.5% | D+24.8 |
| Precinct -MOLINE 11MOLINE 11 | 286 | 204 | 18 | 508 | 56.3% | 40.2% | D+16.1 |
| Precinct -MOLINE 18MOLINE 18 | 258 | 228 | 16 | 502 | 51.4% | 45.4% | D+6.0 |
| Precinct -SOUTH ROCK ISLAND 7SOUTH ROCK ISLAND 7 | 320 | 169 | 12 | 501 | 63.9% | 33.7% | D+30.1 |
| Precinct -MOLINE 13MOLINE 13 | 291 | 186 | 10 | 487 | 59.8% | 38.2% | D+21.6 |
| Precinct -CORDOVACORDOVA | 156 | 313 | 16 | 485 | 32.2% | 64.5% | R+32.4 |
| Precinct -BUFFALO PRAIRIEBUFFALO PRAIRIE | 134 | 332 | 11 | 477 | 28.1% | 69.6% | R+41.5 |
| Precinct -EDGINGTON 1EDGINGTON 1 | 153 | 310 | 10 | 473 | 32.3% | 65.5% | R+33.2 |
| Precinct -SOUTH MOLINE 24SOUTH MOLINE 24 | 236 | 216 | 16 | 468 | 50.4% | 46.2% | D+4.3 |
| Precinct -MOLINE 17MOLINE 17 | 259 | 185 | 18 | 462 | 56.1% | 40.0% | D+16.0 |
| Precinct -HAMPTON 11HAMPTON 11 | 256 | 190 | 12 | 458 | 55.9% | 41.5% | D+14.4 |
| Precinct -DRURYDRURY | 123 | 313 | 10 | 446 | 27.6% | 70.2% | R+42.6 |
| Precinct -ZUMAZUMA | 135 | 298 | 12 | 445 | 30.3% | 67.0% | R+36.6 |
| Precinct -SOUTH ROCK ISLAND 9SOUTH ROCK ISLAND 9 | 267 | 158 | 15 | 440 | 60.7% | 35.9% | D+24.8 |
| Precinct -SOUTH MOLINE 14SOUTH MOLINE 14 | 260 | 169 | 9 | 438 | 59.4% | 38.6% | D+20.8 |
| Precinct -COAL VALLEY 2COAL VALLEY 2 | 201 | 226 | 9 | 436 | 46.1% | 51.8% | R+5.7 |
| Precinct -MOLINE 2MOLINE 2 | 255 | 161 | 19 | 435 | 58.6% | 37.0% | D+21.6 |
| Precinct -MOLINE 10MOLINE 10 | 282 | 131 | 19 | 432 | 65.3% | 30.3% | D+35.0 |
| Precinct -SOUTH MOLINE 5SOUTH MOLINE 5 | 222 | 189 | 16 | 427 | 52.0% | 44.3% | D+7.7 |
| Precinct -HAMPTON 6HAMPTON 6 | 208 | 203 | 9 | 420 | 49.5% | 48.3% | D+1.2 |
| Precinct -SOUTH MOLINE 1SOUTH MOLINE 1 | 244 | 168 | 7 | 419 | 58.2% | 40.1% | D+18.1 |
| Precinct -ROCK ISLAND 6ROCK ISLAND 6 | 312 | 86 | 19 | 417 | 74.8% | 20.6% | D+54.2 |
| Precinct -SOUTH MOLINE 15SOUTH MOLINE 15 | 226 | 179 | 9 | 414 | 54.6% | 43.2% | D+11.4 |
| Precinct -MOLINE 8MOLINE 8 | 277 | 127 | 9 | 413 | 67.1% | 30.8% | D+36.3 |
| Precinct -SOUTH MOLINE 10SOUTH MOLINE 10 | 239 | 155 | 12 | 406 | 58.9% | 38.2% | D+20.7 |
| Precinct -MOLINE 1MOLINE 1 | 253 | 127 | 14 | 394 | 64.2% | 32.2% | D+32.0 |
| Precinct -BLACKHAWK 1BLACKHAWK 1 | 183 | 191 | 9 | 383 | 47.8% | 49.9% | R+2.1 |
| Precinct -MOLINE 7MOLINE 7 | 225 | 142 | 16 | 383 | 58.7% | 37.1% | D+21.7 |
| Precinct -MOLINE 15MOLINE 15 | 249 | 116 | 13 | 378 | 65.9% | 30.7% | D+35.2 |
| Precinct -MOLINE 6MOLINE 6 | 236 | 126 | 11 | 373 | 63.3% | 33.8% | D+29.5 |
| Precinct -ROCK ISLAND 9ROCK ISLAND 9 | 251 | 112 | 9 | 372 | 67.5% | 30.1% | D+37.4 |
| Precinct -SOUTH MOLINE 21SOUTH MOLINE 21 | 211 | 149 | 11 | 371 | 56.9% | 40.2% | D+16.7 |
| Precinct -BLACKHAWK 2BLACKHAWK 2 | 180 | 174 | 12 | 366 | 49.2% | 47.5% | D+1.6 |
| Precinct -SOUTH MOLINE 12SOUTH MOLINE 12 | 212 | 144 | 8 | 364 | 58.2% | 39.6% | D+18.7 |
| Precinct -SOUTH ROCK ISLAND 1SOUTH ROCK ISLAND 1 | 253 | 95 | 14 | 362 | 69.9% | 26.2% | D+43.6 |
| Precinct -EDGINGTON 2EDGINGTON 2 | 110 | 235 | 16 | 361 | 30.5% | 65.1% | R+34.6 |
| Precinct -SOUTH MOLINE 25SOUTH MOLINE 25 | 183 | 165 | 13 | 361 | 50.7% | 45.7% | D+5.0 |
| Precinct -BLACKHAWK 5BLACKHAWK 5 | 174 | 177 | 7 | 358 | 48.6% | 49.4% | R+0.8 |
| Precinct -ROCK ISLAND 12ROCK ISLAND 12 | 233 | 106 | 15 | 354 | 65.8% | 29.9% | D+35.9 |
| Precinct -SOUTH ROCK ISLAND 2SOUTH ROCK ISLAND 2 | 236 | 108 | 8 | 352 | 67.0% | 30.7% | D+36.4 |
| Precinct -SOUTH MOLINE 26SOUTH MOLINE 26 | 219 | 115 | 12 | 346 | 63.3% | 33.2% | D+30.1 |
| Precinct -SOUTH ROCK ISLAND 15SOUTH ROCK ISLAND 15 | 192 | 144 | 10 | 346 | 55.5% | 41.6% | D+13.9 |
| Precinct -SOUTH MOLINE 23SOUTH MOLINE 23 | 164 | 152 | 13 | 329 | 49.8% | 46.2% | D+3.6 |
| Precinct -HAMPTON 7HAMPTON 7 | 155 | 167 | 5 | 327 | 47.4% | 51.1% | R+3.7 |
| Precinct -ROCK ISLAND 14ROCK ISLAND 14 | 202 | 105 | 10 | 317 | 63.7% | 33.1% | D+30.6 |
| Precinct -ROCK ISLAND 5ROCK ISLAND 5 | 234 | 77 | 4 | 315 | 74.3% | 24.4% | D+49.8 |
| Precinct -HAMPTON 3HAMPTON 3 | 207 | 95 | 11 | 313 | 66.1% | 30.4% | D+35.8 |
| Precinct -SOUTH MOLINE 3SOUTH MOLINE 3 | 176 | 121 | 16 | 313 | 56.2% | 38.7% | D+17.6 |
| Precinct -ROCK ISLAND 13ROCK ISLAND 13 | 166 | 103 | 7 | 276 | 60.1% | 37.3% | D+22.8 |
| Precinct -ROCK ISLAND 7ROCK ISLAND 7 | 201 | 65 | 9 | 275 | 73.1% | 23.6% | D+49.5 |
| Precinct -MOLINE 12MOLINE 12 | 136 | 115 | 15 | 266 | 51.1% | 43.2% | D+7.9 |
| Precinct -MOLINE 19MOLINE 19 | 157 | 97 | 6 | 260 | 60.4% | 37.3% | D+23.1 |
| Precinct -CANOE CREEKCANOE CREEK | 61 | 188 | 4 | 253 | 24.1% | 74.3% | R+50.2 |
| Precinct -HAMPTON 4HAMPTON 4 | 180 | 65 | 8 | 253 | 71.1% | 25.7% | D+45.5 |
| Precinct -ROCK ISLAND 8ROCK ISLAND 8 | 196 | 47 | 7 | 250 | 78.4% | 18.8% | D+59.6 |
| Precinct -ROCK ISLAND 3ROCK ISLAND 3 | 188 | 49 | 6 | 243 | 77.4% | 20.2% | D+57.2 |
| Precinct -HAMPTON 9HAMPTON 9 | 90 | 138 | 6 | 234 | 38.5% | 59.0% | R+20.5 |
| Precinct -HAMPTON 8HAMPTON 8 | 102 | 124 | 7 | 233 | 43.8% | 53.2% | R+9.4 |
| Precinct -MOLINE 14MOLINE 14 | 118 | 104 | 6 | 228 | 51.8% | 45.6% | D+6.1 |
| Precinct -HAMPTON 13HAMPTON 13 | 154 | 55 | 6 | 215 | 71.6% | 25.6% | D+46.0 |
| Precinct -ROCK ISLAND 1ROCK ISLAND 1 | 172 | 37 | 6 | 215 | 80.0% | 17.2% | D+62.8 |
| Precinct -SOUTH ROCK ISLAND 16SOUTH ROCK ISLAND 16 | 104 | 58 | 7 | 169 | 61.5% | 34.3% | D+27.2 |
| Precinct -ROCK ISLAND 11ROCK ISLAND 11 | 104 | 54 | 5 | 163 | 63.8% | 33.1% | D+30.7 |
| Precinct -ROCK ISLAND 2ROCK ISLAND 2 | 107 | 23 | 4 | 134 | 79.9% | 17.2% | D+62.7 |
| Precinct -ROCK ISLAND 4ROCK ISLAND 4 | 86 | 30 | 1 | 117 | 73.5% | 25.6% | D+47.9 |
| ANDALUSIA Voting District17_171611601 | 0 | 0 | 0 | 0 | — | — | Even |
| BLACKHAWK 1 Voting District17_171611101 | 0 | 0 | 0 | 0 | — | — | Even |
| BLACKHAWK 2 Voting District17_171611102 | 0 | 0 | 0 | 0 | — | — | Even |
| BLACKHAWK 3 Voting District17_171611103 | 0 | 0 | 0 | 0 | — | — | Even |
| BLACKHAWK 4 Voting District17_171611104 | 0 | 0 | 0 | 0 | — | — | Even |
| BLACKHAWK 5 Voting District17_171611105 | 0 | 0 | 0 | 0 | — | — | Even |
| BLACKHAWK 6 Voting District17_171611106 | 0 | 0 | 0 | 0 | — | — | Even |
| BLACKHAWK 7 Voting District17_171611107 | 0 | 0 | 0 | 0 | — | — | Even |
| BOWLING 1 Voting District17_171611401 | 0 | 0 | 0 | 0 | — | — | Even |
| BOWLING 2 Voting District17_171611402 | 0 | 0 | 0 | 0 | — | — | Even |
| BUFFALO PRAIRIE Voting District17_171611701 | 0 | 0 | 0 | 0 | — | — | Even |
| CANOE CREEK Voting District17_171610301 | 0 | 0 | 0 | 0 | — | — | Even |
| COAL VALLEY 1 Voting District17_171611201 | 0 | 0 | 0 | 0 | — | — | Even |
| COAL VALLEY 2 Voting District17_171611202 | 0 | 0 | 0 | 0 | — | — | Even |
| COAL VALLEY 3 Voting District17_171611203 | 0 | 0 | 0 | 0 | — | — | Even |
| COE Voting District17_171610201 | 0 | 0 | 0 | 0 | — | — | Even |
| CORDOVA Voting District17_171610101 | 0 | 0 | 0 | 0 | — | — | Even |
| DRURY Voting District17_171611801 | 0 | 0 | 0 | 0 | — | — | Even |
| EDGINGTON 1 Voting District17_171611501 | 0 | 0 | 0 | 0 | — | — | Even |
| EDGINGTON 2 Voting District17_171611502 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 1 Voting District17_171610601 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 10 Voting District17_171610610 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 11 Voting District17_171610611 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 12 Voting District17_171610612 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 13 Voting District17_171610613 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 14 Voting District17_171610614 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 15 Voting District17_171610615 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 16 Voting District17_171610616 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 17 Voting District17_171610617 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 2 Voting District17_171610602 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 3 Voting District17_171610603 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 4 Voting District17_171610604 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 5 Voting District17_171610605 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 6 Voting District17_171610606 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 7 Voting District17_171610607 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 8 Voting District17_171610608 | 0 | 0 | 0 | 0 | — | — | Even |
| HAMPTON 9 Voting District17_171610609 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 1-1 Voting District17_171610811 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 1-2 Voting District17_171610812 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 1-3 Voting District17_171610813 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 1-4 Voting District17_171610814 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 1-5 Voting District17_171610815 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 2-1 Voting District17_171610821 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 2-2 Voting District17_171610822 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 2-3 Voting District17_171610823 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 2-4 Voting District17_171610824 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 3-1 Voting District17_171610831 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 3-2 Voting District17_171610832 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 3-3 Voting District17_171610833 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 3-4 Voting District17_171610834 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 4-1 Voting District17_171610841 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 4-2 Voting District17_171610842 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 4-3 Voting District17_171610843 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 5-1 Voting District17_171610851 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 6-1 Voting District17_171610861 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 7-1 Voting District17_171610871 | 0 | 0 | 0 | 0 | — | — | Even |
| MOLINE 7-2 Voting District17_171610872 | 0 | 0 | 0 | 0 | — | — | Even |
| PORT BYRON Voting District17_171610501 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 1-1 Voting District17_171610911 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 2-1 Voting District17_171610921 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 2-2 Voting District17_171610922 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 3-1 Voting District17_171610931 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 3-2 Voting District17_171610932 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 4-1 Voting District17_171610941 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 4-2 Voting District17_171610942 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 4-3 Voting District17_171610943 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 5-1 Voting District17_171610951 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 5-2 Voting District17_171610952 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 6-1 Voting District17_171610961 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 6-2 Voting District17_171610962 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 6-3 Voting District17_171610963 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 7-1 Voting District17_171610971 | 0 | 0 | 0 | 0 | — | — | Even |
| ROCK ISLAND 7-2 Voting District17_171610972 | 0 | 0 | 0 | 0 | — | — | Even |
| RURAL Voting District17_171611301 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 1 Voting District17_171610701 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 10 Voting District17_171610710 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 11 Voting District17_171610711 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 12 Voting District17_171610712 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 13 Voting District17_171610713 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 14 Voting District17_171610714 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 15 Voting District17_171610715 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 16 Voting District17_171610716 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 17 Voting District17_171610717 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 18 Voting District17_171610718 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 19 Voting District17_171610719 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 2 Voting District17_171610702 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 20 Voting District17_171610720 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 21 Voting District17_171610721 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 22 Voting District17_171610722 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 23 Voting District17_171610723 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 24 Voting District17_171610724 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 25 Voting District17_171610725 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 26 Voting District17_171610726 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 27 Voting District17_171610727 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 28 Voting District17_171610728 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 29 Voting District17_171610729 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 3 Voting District17_171610703 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 4 Voting District17_171610704 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 5 Voting District17_171610705 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 6 Voting District17_171610706 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 7 Voting District17_171610707 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 8 Voting District17_171610708 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH MOLINE 9 Voting District17_171610709 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 1 Voting District17_171611001 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 10 Voting District17_171611010 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 11 Voting District17_171611011 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 12 Voting District17_171611012 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 13 Voting District17_171611013 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 14 Voting District17_171611014 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 15 Voting District17_171611015 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 16 Voting District17_171611016 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 2 Voting District17_171611002 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 3 Voting District17_171611003 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 4 Voting District17_171611004 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 5 Voting District17_171611005 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 6 Voting District17_171611006 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 7 Voting District17_171611007 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 8 Voting District17_171611008 | 0 | 0 | 0 | 0 | — | — | Even |
| SOUTH ROCK ISLAND 9 Voting District17_171611009 | 0 | 0 | 0 | 0 | — | — | Even |
| ZUMA Voting District17_171610401 | 0 | 0 | 0 | 0 | — | — | Even |
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −10.6% |
| 1896 | −21.6% |
| 1900 | −25.9% |
| 1904 | −45.4% |
| 1908 | −23.4% |
| 1912 | +10.5% |
| 1916 | −17.3% |
| 1920 | −54.4% |
| 1924 | −47.5% |
| 1928 | −30.9% |
| 1932 | +7.5% |
| 1936 | +25.0% |
| 1940 | +15.7% |
| 1944 | +11.3% |
| 1948 | +5.0% |
| 1952 | −8.3% |
| 1956 | −3.6% |
| 1960 | +1.9% |
| 1964 | +27.6% |
| 1968 | +5.8% |
| 1972 | −7.1% |
| 1976 | +2.8% |
| 1980 | −6.6% |
| 1984 | +6.7% |
| 1988 | +18.8% |
| 1992 | +19.7% |
| 1996 | +23.3% |
| 2000 | +19.6% |
| 2004 | +14.6% |
| 2008 | +24.6% |
| 2012 | +21.8% |
| 2016 | +8.3% |
| 2020 | +12.1% |
| 2024 | +9.6% |
DemocraticRepublican
Congressional elections · 2 Senate races
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | D | 55.2%26,469 | 42.8%20,548 | 47,972 |
| 2020 | D | 55.2%36,493 | 41.9%27,705 | 66,163 |
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 100,163 |
| 2018 | 100,163 |
| 2020 | 91,852 |
| 2022 | 87,406 |
| 2024 | 90,276 |
domestic migration
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−421 net domestic migration · 2025
20112025
Net −15,992 over 2011–2025 · gain loss
Arrivals reported $51,297 in average income, against $71,140 for residents who stayed — 28% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+5.8 on average — 15 points more Republican-leaning than Rock Island County, IL itself (D+9.6).
Where arrivals came from lean of each source
- Scott County, IA870R+3.9
- Henry County, IL317R+24.4
- Cook County, IL115D+41.6
- Mercer County, IL108R+27.1
- Whiteside County, IL55R+14.7
- Muscatine County, IA52R+14.9
Where departures went households, 2022–23
- Scott County, IA958
- Henry County, IL278
- Mercer County, IL125
- Cook County, IL120
- Johnson County, IA58
- Muscatine County, IA48
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | −812 |
| 2012 | −488 |
| 2013 | −686 |
| 2014 | −1,476 |
| 2015 | −1,610 |
| 2016 | −1,793 |
| 2017 | −1,665 |
| 2018 | −1,551 |
| 2019 | −1,158 |
| 2021 | −1,550 |
| 2022 | −1,773 |
| 2023 | −674 |
| 2024 | −335 |
| 2025 | −421 |
Rock Island anchors Illinois's Quad Cities metro along the Iowa border, where a unionized manufacturing heritage and a diverse urban core in Rock Island and Moline have kept the county reliably left of center in statewide contests.
Across the recorded series it reached a Democratic high of 27.6 points in 1964 and a Republican high of 54.4 points in 1920. Between 2020 and 2024 the county moved 2.5 points toward the Republican candidate; the 2024 margin was 9.6 points.
A population of 142,757, a 67% non-Hispanic-white share, and a median household income of $67,159 describe the county. The county's voting pattern over the last decade is most similar to that of Mendocino County and Philadelphia County.
Political twins — counties
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Mendocino County
California
91.9twin score
2000–2024 trajectory≠ Swedish ancestry
Philadelphia County
Pennsylvania
89.6twin score
% EvangelicalFrench ancestryAmerican ancestry≠ 2016 margin
Rock County
Wisconsin
88.9twin score
2000–2012 trajectory≠ Swedish ancestry
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Rock Island County, Illinois. Akashic. https://akashic.app/county/17161/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Embed this page
A live widget for your site — no API key, attribution built in, CC BY 4.0. All widgets & sizes →
Cities & towns in Rock Island County
Illinois at the ballot boxAll elections →
Frequently asked questions
How did Rock Island County, Illinois vote in 2024?
In 2024, Rock Island County, Illinois voted Democratic by 9.6 points (D+9.6), carried by the Democratic candidate. Out of 63,458 votes cast, 34,126 went Democratic and 28,061 went Republican.
When did Rock Island County, Illinois last vote Republican?
The most recent presidential election in which Rock Island County, Illinois voted Republican was 1980.
How many people live in Rock Island County, Illinois?
Rock Island County, Illinois has a population of 142,757 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Rock Island County, Illinois?
Median household income in Rock Island County, Illinois is $67,159 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Rock Island County, Illinois?
Akashic tracks 38 presidential elections in Rock Island County, Illinois from 1876 to 2024. Of those, 20 went Democratic and 13 went Republican.