Elections / 2002 · House · IL-12
IL-12 — 2002 U.S. House election
Akashiccongressional district2002 US House electionIL-12 · U.S. HouseCostelloD+38.5
How it voted
Share of the 2002 vote
| Jerry F Costello ✓Democrat | 69.2% | 131,580 |
|---|---|---|
| David SadlerRepublican | 30.8% | 58,440 |
D+60R+60
District boundary, filled by its own 2002 D-vs-R margin — precinct detail where available, over faint county context.
Margin history
IL-12 across every cycle on record. Each year links to its district page.
| Year | Won | Margin | Votes |
|---|---|---|---|
| 2024 | R | 367,629 | |
| 2022 | R | 291,171 | |
| 2020 | R | 322,416 | |
| 2018 | R | 261,543 | |
| 2016 | R | 313,002 | |
| 2014 | R | 209,738 | |
| 2012 | D | 303,949 | |
| 2010 | D | 202,705 | |
| 2008 | D | 298,181 | |
| 2006 | D | 157,291 | |
| 2004 | D | 286,435 | |
| 2002 | D | 190,020 | |
| 2000 | D | 183,257 | |
| 1998 | D | 165,014 | |
| 1996 | D | 209,519 | |
| 1994 | D | 153,810 | |
| 1992 | D | 236,877 | |
| 1990 | R | 137,531 | |
| 1988 | R | 220,682 | |
| 1986 | R | 114,580 | |
| 1984 | R | 205,119 | |
| 1982 | R | 130,701 | |
| 1980 | R | 249,818 | |
| 1978 | R | 138,935 | |
| 1976 | R | 208,553 |
Same ballot, 2002IL
Source. MIT Election Data + Science Lab — 2002 US House returns, party-classified by literal ballot party · district lines from the 2010-census apportionment. Real returns — nothing estimated.