A recent analysis by Local Government Information Services (LGIS), which owns this publication, found almost 50,000 duplicate voter registration records, representing Illinois residents who are registered multiple times.
The data, which was pulled from the the Illinois State Board of Elections voter registration file, shows that there were 49,772 records that showed voters with the same first name, middle name, last name and birth date, and registrations at two different addresses or multiple registrations at the same address, with two unique state-issued voter identification numbers.
The total represents 24,843 unique voters, one person registered four times, 84 people registered three times and 24,758 registered two times.
The city of Chicago had a total of 16,950 duplicate records.
Voters with multiple registrations can vote multiple times.
You can find the number of duplicate records for Chicago, broken down by ward, in the table below:
| Ward | Duplicated Registration Records |
| Urbana Ward 1 | 1 |
| Champaign City Council 2 | 4 |
| Chicago Ward 1 | 413 |
| Chicago Ward 2 | 325 |
| Chicago Ward 3 | 373 |
| Chicago Ward 4 | 387 |
| Chicago Ward 5 | 319 |
| Chicago Ward 6 | 324 |
| Chicago Ward 7 | 338 |
| Chicago Ward 8 | 350 |
| Chicago Ward 9 | 395 |
| Chicago Ward 10 | 172 |
| Chicago Ward 11 | 277 |
| Chicago Ward 12 | 192 |
| Chicago Ward 13 | 262 |
| Chicago Ward 14 | 163 |
| Chicago Ward 15 | 152 |
| Chicago Ward 16 | 278 |
| Chicago Ward 17 | 294 |
| Chicago Ward 18 | 300 |
| Chicago Ward 19 | 330 |
| Chicago Ward 20 | 291 |
| Chicago Ward 21 | 330 |
| Chicago Ward 22 | 202 |
| Chicago Ward 23 | 217 |
| Chicago Ward 24 | 198 |
| Chicago Ward 25 | 287 |
| Chicago Ward 26 | 295 |
| Chicago Ward 27 | 389 |
| Chicago Ward 28 | 318 |
| Chicago Ward 29 | 292 |
| Chicago Ward 30 | 190 |
| Chicago Ward 31 | 202 |
| Chicago Ward 32 | 373 |
| Chicago Ward 33 | 259 |
| Chicago Ward 34 | 441 |
| Chicago Ward 35 | 192 |
| Chicago Ward 36 | 156 |
| Chicago Ward 37 | 230 |
| Chicago Ward 38 | 191 |
| Chicago Ward 39 | 232 |
| Chicago Ward 40 | 281 |
| Chicago Ward 41 | 265 |
| Chicago Ward 42 | 358 |
| Chicago Ward 43 | 264 |
| Chicago Ward 44 | 348 |
| Chicago Ward 45 | 290 |
| Chicago Ward 46 | 321 |
| Chicago Ward 47 | 356 |
| Chicago Ward 48 | 293 |
| Chicago Ward 49 | 373 |
| Chicago Ward 50 | 205 |
| Not Specified | 1,980 |
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