Illinois House District 99 Election Results
Illinois House District 99 was held by Republican after the 2018 general election, a two-party margin of 17.8 points. This page covers every general election on record for this district from 1982 to 2018.
This page covers the state House (lower chamber) general election only, two-party vote totals (Democratic vs. Republican). District lines here are redrawn at least once a decade, so an older and newer election under the same district number don't necessarily cover the same voters -- see the sourcing note below.
Results by Election
| Election | Winning Party | Dem. Votes | GOP Votes | Dem. Share | Margin |
|---|---|---|---|---|---|
| 1982 | Democratic | 20,924 | 19,697 | 51.5% | 3.0 pts |
| 1984 | Democratic | 30,092 | 18,740 | 61.6% | 23.2 pts |
| 1986 | Democratic | 22,786 | 17,901 | 56.0% | 12.0 pts |
| 1988 | Democratic | 26,285 | 20,176 | 56.6% | 13.2 pts |
| 1990 | Democratic | 27,584 | 14,334 | 65.8% | 31.6 pts |
| 1992 | Democratic | 31,233 | 21,689 | 59.0% | 18.0 pts |
| 1994 | Republican | 19,775 | 23,848 | 45.3% | 9.3 pts |
| 1996 | Republican | 20,830 | 27,158 | 43.4% | 13.2 pts |
| 1998 | Republican | 13,611 | 27,463 | 33.1% | 33.7 pts |
| 2000 | Republican | 12,372 | 36,595 | 25.3% | 49.5 pts |
| 2002 | Republican | 15,473 | 22,840 | 40.4% | 19.2 pts |
| 2004 | Republican | 15,514 | 28,117 | 35.6% | 28.9 pts |
| 2006 | Republican | 14,302 | 19,082 | 42.8% | 14.3 pts |
| 2008 | Republican | 16,425 | 27,931 | 37.0% | 25.9 pts |
| 2010 | Republican | 10,243 | 19,921 | 34.0% | 32.1 pts |
| 2012 | Republican | 0 | 46,239 | 0.0% | 100.0 pts |
| 2014 | Republican | 0 | 37,596 | 0.0% | 100.0 pts |
| 2016 | Republican | 22,188 | 35,363 | 38.5% | 22.9 pts |
| 2018 | Republican | 21,501 | 30,809 | 41.1% | 17.8 pts |
Winning Margin Over Time
Frequently Asked Questions
Which party held Illinois House District 99 at the 2018 election?
Republican held Illinois House District 99 at the 2018 general election, with a two-party margin of 17.8 points.
Which parties have held Illinois House District 99 since 1982?
Since 1982, Illinois House District 99 has been held by: Democratic, Republican.
What was the closest two-party race on record in Illinois House District 99?
The closest two-party margin on record for Illinois House District 99 was 1982, at just 3.0 percentage points.