IA-04 — 2018 U.S. House election
Recent presidential results, current district lines
Akashiccongressional district2018 US House electionIA-04 · U.S. HouseKingR+3.3
How it voted
Share of the 2018 vote
| Steve King (i) ✓Republican | 50.3% | 157,676 |
|---|---|---|
| Jd ScholtenDemocrat | 47.0% | 147,246 |
| Charles AldrichIndependent | 2.0% | 6,161 |
D+60R+60
District boundary, filled by its own 2018 D-vs-R margin — precinct detail where available, over faint county context.
The boundary drawn is the current IA-04 (cd:120, the 2026 map); the 2018 election ran under that decade's own lines. The result shown is the certified 2018 contest.
Margin history
IA-04 across every cycle on record. Each year links to its district page.
| Year | Won | Margin | Votes |
|---|---|---|---|
| 2024 | R | 373,824 | |
| 2022 | R | 277,008 | |
| 2020 | R | 383,022 | |
| 2018 | R | 313,251 | |
| 2016 | R | 370,259 | |
| 2014 | R | 275,633 | |
| 2012 | R | 377,883 | |
| 2010 | R | 232,519 | |
| 2008 | R | 306,204 | |
| 2006 | R | 212,632 | |
| 2004 | R | 297,566 | |
| 2002 | R | 210,774 | |
| 2000 | R | 275,645 | |
| 1998 | R | 199,277 | |
| 1996 | R | 256,509 | |
| 1994 | R | 213,206 | |
| 1992 | D | 257,441 | |
| 1990 | D | 130,590 | |
| 1988 | D | 219,223 | |
| 1986 | D | 156,952 | |
| 1984 | D | 225,639 | |
| 1982 | D | 179,972 | |
| 1980 | D | 218,620 | |
| 1978 | D | 136,834 | |
| 1976 | D | 210,356 |
Same ballot, 2018IA
Source. MIT Election Data + Science Lab — 2018 US House returns, party-classified by literal ballot party · results as certified for the 2018 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.