Iowa 4th State Senate District, Iowa: Republican loyalist district. In 2024, voted R+40%. Republican peak: R+48 in 1920.
Key facts
- 2024 presidential margin
- R+40MIT Election Lab
- Political archetype
- Republican loyalistAkashic typology
- Population
- 63,4212024 5-year
- Median household income
- $68,3092024 5-year
- White (non-Hispanic)
- 88.5%2024 5-year
- Black
- 2.4%2024 5-year
- Hispanic / Latino
- 5.6%2024 5-year
- Peak Democratic margin
- D+29 in 1964MIT Election Lab
- Peak Republican margin
- R+48 in 1920MIT Election Lab
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 9,054 | 21,384 | 30,885 | ||
| R | 10,404 | 21,513 | 32,436 | ||
| R | 9,935 | 19,928 | 31,984 | ||
| R | 15,419 | 16,849 | 32,843 | ||
| D | 16,313 | 15,920 | 32,811 | ||
| R | 15,840 | 17,782 | 33,858 | ||
| R | 14,445 | 15,965 | 31,261 | ||
| D | 14,723 | 12,267 | 30,317 | ||
| D | 14,516 | 13,041 | 34,077 | ||
| D | 18,591 | 13,681 | 32,625 | ||
| R | 17,314 | 18,854 | 36,615 | ||
| R | 15,085 | 20,989 | 39,306 | ||
| D | 19,594 | 18,329 | 38,675 | ||
| R | 15,496 | 22,108 | 38,287 | ||
| R | 15,503 | 20,185 | 37,823 | ||
| D | 25,757 | 14,013 | 39,844 | ||
| R | 20,264 | 23,520 | 43,811 | ||
| R | 19,321 | 23,985 | 43,659 | ||
| R | 16,059 | 28,614 | 45,487 | ||
| D | 19,870 | 15,935 | 36,876 | ||
| D | 19,820 | 16,679 | 36,641 | ||
| D | 22,946 | 18,717 | 41,767 | ||
| D | 23,257 | 15,234 | 39,713 | ||
| D | 21,734 | 12,577 | 35,782 | ||
| R | 14,415 | 20,443 | 35,081 | ||
| R | 4,283 | 16,676 | 34,012 | ||
| R | 7,190 | 22,618 | 31,952 | ||
| R | 7,998 | 10,057 | 18,484 | ||
| O | 5,852 | 4,468 | 17,721 | ||
| R | 6,071 | 10,233 | 17,134 | ||
| R | 4,395 | 11,620 | 17,085 | ||
| R | 5,991 | 12,155 | 18,591 | ||
| R | 6,560 | 10,767 | 17,568 | ||
| R | 5,460 | 7,712 | 14,166 | ||
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Demographics
This rural northwest Iowa district recorded a 73-point Republican presidential margin in 2024, making it among the most politically uniform constituencies in the state and a reliable benchmark for measuring statewide partisan shifts.
The Republican margin in Iowa 4th State Senate District reached its widest at forty-eight points in 1920. The margin in 2024 was forty points, in line with the district's deep historical pattern.
Its loyalty is rooted in its place. Median household income of $68,309, a 89% non-Hispanic-white share, and a population of 63,421 together describe a district whose political habits are deeply settled.
Compare two places, side by side
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State Senate District 4, Iowa. Akashic. https://akashic.app/sld-upper/19004/. Accessed May 20, 2026. License: CC BY 4.0.