A recent analysis by Local Government Information Services, 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 which 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 twice.
Madison County had the most in the area, with 436 total duplicate records. St. Clair County had 267 total duplicate records, Jersey County had 101 total duplicate records and Monroe County had 45.
Voters with multiple registrations could vote multiple times.
You can find the number of duplicate records for Madison County, broken down by city, in the table below:
| City | Duplicated Registration Records |
| Edwardsville | 112 |
| Alton | 61 |
| Collinsville | 41 |
| Granite City | 39 |
| Glen Carbon | 35 |
| Godfrey | 32 |
| Wood River | 17 |
| Bethalto | 16 |
| Highland | 16 |
| Troy | 15 |
| East Alton | 12 |
| Maryville | 11 |
| Worden | 9 |
| Madison | 5 |
| Moro | 4 |
| Roxana | 3 |
| Livingston | 3 |
| Dorsey | 2 |
| Alhambra | 2 |
| Hartford | 1 |
| Marine | 1 |
| St. Jacob | 1 |
| Pierron | 1 |
| Venice | 1 |
| Total (Madison County) | 436 |
You can find the number of duplicate records for St. Clair County, broken down by city, in the table below:
| City | Duplicated Registration Records |
| Belleville | 75 |
| East St. Louis | 53 |
| O'Fallon | 25 |
| Cahokia | 17 |
| Mascoutah | 15 |
| Swansea | 13 |
| Fairview Heights | 12 |
| Lebanon | 11 |
| Trenton | 11 |
| Millstadt | 8 |
| Dupo | 6 |
| Caseyville | 5 |
| Washington Park | 5 |
| Centreville | 4 |
| East Carondelet | 3 |
| Scott Air Force Base | 2 |
| New Athens | 2 |
| Freeburg | 1 |
| Smithton | 1 |
| Summerfield | 1 |
| Lenzburg | 1 |
| Alorton | 1 |
| Marissa | 1 |
| Total (St. Clair County) | 267 |
You can find the number of duplicate records for Monroe County, broken down by city, in the table below:
| City | Duplicated Registration Records |
| Columbia | 20 |
| Waterloo | 19 |
| Valmeyer | 3 |
| Fults | 3 |
| Maeystown | 1 |
| Total (Monroe County) | 45 |
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