Arizona 20th State House District, Arizona: Democratic loyalist district. In 2024, voted D+15%. Democratic peak: D+34 in 1936.
Key facts
- 2024 presidential margin
- D+15MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 10,0042024 5-year
- Median household income
- $70,3152024 5-year
- White (non-Hispanic)
- 59.2%2024 5-year
- Black
- 3.6%2024 5-year
- Hispanic / Latino
- 36.4%2024 5-year
- Peak Democratic margin
- D+34 in 1936MIT Election Lab
- Peak Republican margin
- R+25 in 1956MIT Election Lab
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 2,759 | 2,025 | 4,858 | ||
| D | 2,877 | 1,960 | 4,926 | ||
| D | 2,119 | 1,579 | 3,977 | ||
| D | 1,898 | 1,649 | 3,615 | ||
| D | 1,946 | 1,721 | 3,711 | ||
| D | 1,822 | 1,614 | 3,467 | ||
| D | 1,393 | 1,175 | 2,713 | ||
| D | 1,302 | 982 | 2,496 | ||
| D | 1,213 | 915 | 2,655 | ||
| R | 1,074 | 1,112 | 2,212 | ||
| R | 864 | 1,168 | 2,053 | ||
| R | 608 | 878 | 1,765 | ||
| R | 672 | 729 | 1,463 | ||
| R | 530 | 690 | 1,520 | ||
| R | 375 | 467 | 922 | ||
| D | 511 | 443 | 955 | ||
| R | 398 | 441 | 841 | ||
| R | 222 | 371 | 593 | ||
| R | 200 | 303 | 503 | ||
| D | 167 | 160 | 336 | ||
| D | 123 | 102 | 226 | ||
| D | 132 | 89 | 222 | ||
| D | 116 | 57 | 175 | ||
| D | 104 | 58 | 167 | ||
| R | 47 | 63 | 110 | ||
| R | 24 | 34 | 80 | ||
| R | 23 | 32 | 55 | ||
| R | 20 | 25 | 46 | ||
| D | 7 | 3 | 17 | ||
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Demographics
With a 2024 presidential margin of D+43.2, this Maricopa County district ranks among the most heavily Democratic state house seats in Arizona, reflecting a dense, diverse urban core that consistently delivers lopsided margins.
The Democratic margin in Arizona 20th State House District reached its widest at thirty-four points in 1936. The margin in 2024 was fifteen points — still decisive.
Its loyalty is rooted in its place. Median household income of $70,315, a 59% non-Hispanic-white share, and a population of 10,004 together describe a district whose political habits are deeply settled.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
State House District 20, Arizona. Akashic. https://akashic.app/sld-lower/04020/. Accessed May 20, 2026. License: CC BY 4.0.