IL-21 — 1988 U.S. House election
Akashic1988 · U.S. HouseIL-21 · U.S. HouseJerry F CostelloD+5.2
Candidates
IL-21 candidate totals — MIT Election Data + Science Lab, 1988 US House returns.
- Jerry F Costello✓Democrat105,83652.6%
- Robert H \"Bob\" GaffnerRepublican95,38547.4%
Margin history
IL-21 across every cycle on record. Each year links to its district page.
| Year | Won | Margin | Votes |
|---|---|---|---|
| 1990 | D | 144,157 | |
| 1988 | D | 201,221 | |
| 1986 | D | 130,501 | |
| 1984 | D | 211,194 | |
| 1982 | D | 140,608 | |
| 1980 | R | 195,662 | |
| 1978 | R | 124,527 | |
| 1976 | R | 184,035 |
Same ballot, 1988IL
Source. MIT Election Data + Science Lab — 1988 US House returns, party-classified by literal ballot party · results as certified for the 1988 contest; the boundary drawn and the presidential strip use the current district map (cd:120, the 2026 lines) — the election itself ran under earlier lines. Real returns — nothing estimated.