Michigan 66th State House District, Michigan: Tossup district. In 2024, voted D+1%. Republican peak: R+63 in 1924.
Key facts
- 2024 presidential margin
- D+1MIT Election Lab
- Political archetype
- TossupAkashic typology
- Population
- 324,8442024 5-year
- Median household income
- $89,5112024 5-year
- White (non-Hispanic)
- 71.5%2024 5-year
- Black
- 12.8%2024 5-year
- Hispanic / Latino
- 4.3%2024 5-year
- Peak Democratic margin
- D+33 in 1964MIT Election Lab
- Peak Republican margin
- R+63 in 1924MIT Election Lab
Constituent county margins for State House District 66, MIOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 95,256 | 93,754 | 193,075 | ||
| D | 98,804 | 88,817 | 190,127 | ||
| D | 77,976 | 77,356 | 163,585 | ||
| D | 83,704 | 73,436 | 159,193 | ||
| D | 89,619 | 69,878 | 162,105 | ||
| R | 77,487 | 77,996 | 156,994 | ||
| D | 68,210 | 65,909 | 137,638 | ||
| D | 59,123 | 51,136 | 121,983 | ||
| R | 51,921 | 58,608 | 136,043 | ||
| R | 43,241 | 68,991 | 113,286 | ||
| R | 37,304 | 75,220 | 113,106 | ||
| R | 42,884 | 61,224 | 114,329 | ||
| R | 42,955 | 56,584 | 101,432 | ||
| R | 31,833 | 58,524 | 92,390 | ||
| D | 40,509 | 32,933 | 83,110 | ||
| D | 47,281 | 23,789 | 71,231 | ||
| D | 36,312 | 33,573 | 70,115 | ||
| R | 24,460 | 31,671 | 56,251 | ||
| R | 16,573 | 22,907 | 39,652 | ||
| R | 11,520 | 12,539 | 24,666 | ||
| R | 11,814 | 12,125 | 24,124 | ||
| D | 10,204 | 10,016 | 20,340 | ||
| D | 8,687 | 5,907 | 15,484 | ||
| D | 7,456 | 6,150 | 14,075 | ||
| R | 2,614 | 8,707 | 11,375 | ||
| R | 1,098 | 5,958 | 7,670 | ||
| R | 1,417 | 4,362 | 6,060 | ||
| R | 1,465 | 1,845 | 3,410 | ||
| R | 978 | 991 | 2,825 | ||
| R | 1,067 | 1,616 | 2,806 | ||
| R | 1,045 | 1,776 | 2,903 | ||
| R | 1,272 | 1,566 | 2,937 | ||
| R | 1,304 | 1,504 | 3,082 | ||
| D | 1,280 | 1,135 | 2,602 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
16.5%
Polish
10.2%
Irish
10.1%
English
9.1%
Italian
7.7%
American
3.5%
French
3.0%
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: 41.3 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$89,511
State House District 66 ranks near the middle of US counties.
State House District 66$89,511
Michigan$72,875
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
8.8%
Child poverty is below the national average.
Children under 1811.1%
Working age (18–64)8.0%
Seniors (65+)10.7%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
84.2%
speak English only
Other Indo-European6.3%
Asian & Pacific Islander3.6%
Other languages3.6%
Spanish2.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 56.3% of residents not counted as adherents by any reporting body.
With a 2024 presidential margin of R+31.9, this district sits well outside Michigan's competitive middle, reflecting rural or exurban demographics that have shifted heavily toward Republican candidates over the past decade.
The district's recent history is a story of close margins. The Democratic margin reached thirty-three points in 1964; the Republican margin reached sixty-three points in 1924. Most other elections have been decided by single-digit points.
Its demographics — a population of 324,844, a 72% non-Hispanic-white share, a median household income of $89,511 — situate the district close to national averages on several dimensions.
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 66, Michigan. Akashic. https://akashic.app/sld-lower/26066/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 66, Michigan vote in 2024?
In 2024, State House District 66, Michigan voted Democratic by 0.8 points (D+1), carried by the Democratic candidate. Out of 193,075 votes cast, 95,256 went Democratic and 93,754 went Republican.
What is State House District 66, Michigan's political archetype?
Akashic classifies State House District 66, Michigan as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 14 times, Republican 20 times, and other 0 times.
When did State House District 66, Michigan last vote Republican?
The most recent presidential election in which State House District 66, Michigan voted Republican was 2004.
How many people live in State House District 66, Michigan?
State House District 66, Michigan has a population of 324,844 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 66, Michigan?
Median household income in State House District 66, Michigan is $89,511 — above the national median of $80,734. The Michigan state median is $72,875.
What is the political history of State House District 66, Michigan?
Akashic tracks 38 presidential elections in State House District 66, Michigan from 1876 to 2024. Of those, 14 went Democratic and 20 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.