akashic
1876–2024
State House District 18·Arizona

Arizona 18th State House District has voted Democratic in nine straight presidential cycles.

One of Arizona's most Democratic-leaning legislative districts

1876 — 2024·38 elections
AZ
Latest
D+15
in 2024
Archetype
Democratic loyalist
since the recent cycles
Population
11,024
2024 ACS

Arizona 18th State House District, Arizona: Democratic loyalist district. In 2024, voted D+15%. Democratic peak: D+33 in 1936.

Key facts

2024 presidential margin
D+15MIT Election Lab
Political archetype
Democratic loyalistAkashic typology
Population
11,0242024 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+33 in 1936MIT Election Lab
Peak Republican margin
R+25 in 1956MIT Election Lab
2024 results by constituent county
1 counties · 1 D · 0 R
R+60
D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
D
+15.1%
3,0402,2315,354
D
+18.6%
3,1702,1605,428
D
+13.6%
2,3351,7404,383
D
+6.9%
2,0921,8173,983
D
+6.1%
2,1441,8964,090
D
+6.0%
2,0081,7793,820
D
+8.0%
1,5351,2952,990
D
+12.8%
1,4341,0822,750
D
+11.2%
1,3361,0092,926
R
−1.8%
1,1831,2262,437
R
−14.8%
9521,2872,262
R
−15.3%
6709671,944
R
−3.9%
7408031,612
R
−10.5%
5847601,675
R
−9.8%
4145141,016
D
+7.1%
5634881,053
R
−5.2%
438486927
R
−24.9%
245408654
R
−20.4%
221334555
D
+2.2%
184176370
D
+8.8%
135113249
D
+19.6%
14698245
D
+33.2%
12763193
D
+27.7%
11564184
R
−14.0%
5269121
R
−11.4%
273788
R
−14.8%
263561
R
−9.8%
222751
O
+15.8%
7419
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Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
13.1%
English
10.7%
Irish
9.2%
Italian
4.1%
American
3.3%
Polish
2.3%
Scottish
2.1%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 39.8 in this county, 39.1 nationally
Male
Age
Female
0.9%
85+
1.4%
3.3%
75–84
3.8%
5.6%
65–74
6.5%
5.7%
55–64
6.2%
5.3%
45–54
5.4%
5.9%
35–44
5.7%
6.8%
25–34
6.3%
5.8%
18–24
5.7%
7.5%
5–17
7.2%
2.5%
<5
2.4%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$70,315
State House District 18 ranks near the middle of US counties.
State House District 18$70,315
Arizona$79,964
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
14.3%
Children face moderate poverty.
Children under 1818.6%
Working age (18–64)13.9%
Seniors (65+)8.8%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
74.3%
speak English only
Spanish20.8%
Other Indo-European1.9%
Asian & Pacific Islander1.8%
Other languages1.2%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
19.1%
Other Christian
10.6%
Mainline Protestant
2.4%
Non-Christian
2.3%
Pentecostal & Holiness
2.0%
Baptist
1.8%
Methodist
0.6%
Source · 2020 US Religion Census. Remaining 61.2% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin of D+24, this Maricopa County-area district sits well outside Arizona's statewide competitive range, making it a reliable anchor for Democratic legislative candidates in a state that has shifted toward battleground status.

The Democratic margin in Arizona 18th State House District reached its widest at thirty-three 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 11,024 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 →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State House District 18, Arizona. Akashic. https://akashic.app/sld-lower/04018/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did State House District 18, Arizona vote in 2024?
In 2024, State House District 18, Arizona voted Democratic by 15.1 points (D+15), carried by the Democratic candidate. Out of 5,354 votes cast, 3,040 went Democratic and 2,231 went Republican.
What is State House District 18, Arizona's political archetype?
Akashic classifies State House District 18, Arizona as a "Democratic loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 15 times, Republican 13 times, and other 1 times.
When did State House District 18, Arizona last vote Republican?
The most recent presidential election in which State House District 18, Arizona voted Republican was 1988.
How many people live in State House District 18, Arizona?
State House District 18, Arizona has a population of 11,024 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State House District 18, Arizona?
Median household income in State House District 18, Arizona is $70,315 — below the national median of $80,734. The Arizona state median is $79,964.
What is the political history of State House District 18, Arizona?
Akashic tracks 38 presidential elections in State House District 18, Arizona from 1876 to 2024. Of those, 15 went Democratic and 13 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.