Monmouth County, New Jersey: Democratic loyalist county. In 2024, voted R+11%. Republican peak: R+44 in 1956.
Key facts
- 2024 presidential margin
- R+11MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 645,3532024 5-year
- Median household income
- $124,8452024 5-year
- White (non-Hispanic)
- 74.4%2024 5-year
- Black
- 6.0%2024 5-year
- Hispanic / Latino
- 12.9%2024 5-year
- Peak Democratic margin
- D+30 in 1912MIT Election Lab
- Peak Republican margin
- R+44 in 1956MIT Election Lab
- Most similar
- Cape May County, NJ · similarity 0.91
2024 results by precinct
2024 precinct map of Monmouth CountyPrecinct-level 2024 presidential results for Monmouth County, with each precinct boundary colored by Democratic-vs-Republican margin.
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 156,382 | 197,409 | 361,596 | ||
| R | 181,291 | 191,808 | 375,807 | ||
| R | 137,181 | 166,723 | 317,750 | ||
| R | 133,820 | 148,000 | 285,667 | ||
| R | 148,737 | 160,433 | 312,616 | ||
| R | 133,773 | 163,650 | 299,939 | ||
| D | 131,476 | 119,291 | 262,141 | ||
| D | 120,414 | 99,975 | 248,961 | ||
| R | 101,750 | 117,715 | 266,116 | ||
| R | 91,844 | 147,320 | 240,957 | ||
| R | 79,382 | 152,595 | 232,909 | ||
| R | 71,328 | 120,173 | 211,971 | ||
| R | 88,956 | 110,104 | 202,790 | ||
| R | 63,176 | 124,830 | 189,977 | ||
| R | 69,669 | 87,311 | 170,456 | ||
| D | 95,320 | 61,367 | 157,055 | ||
| R | 62,434 | 81,382 | 144,060 | ||
| R | 32,329 | 83,828 | 116,751 | ||
| R | 37,006 | 73,228 | 110,491 | ||
| R | 30,507 | 52,908 | 85,033 | ||
| R | 34,720 | 49,349 | 84,122 | ||
| R | 36,298 | 49,675 | 86,047 | ||
| R | 38,914 | 41,460 | 80,767 | ||
| R | 35,219 | 40,467 | 76,741 | ||
| R | 24,286 | 47,046 | 71,454 | ||
| R | 14,931 | 34,451 | 52,482 | ||
| R | 12,975 | 28,818 | 42,336 | ||
| R | 10,729 | 11,624 | 22,590 | ||
| D | 9,799 | 3,683 | 20,182 | ||
| R | 9,252 | 12,519 | 22,239 | ||
| R | 9,032 | 10,885 | 20,534 | ||
| R | 8,568 | 10,363 | 19,514 | ||
| R | 7,799 | 10,611 | 19,197 | ||
| D | 9,013 | 7,676 | 17,277 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Italian
22.5%
Irish
19.2%
German
10.6%
English
6.2%
Polish
5.7%
American
4.0%
Scottish
1.2%
African American
4.8%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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: 43.2 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
$124,845
Monmouth County ranks in the top 0.5% of US counties.
Monmouth County$124,845
New Jersey$103,556
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
6.5%
Child poverty is below the national average.
Children under 187.2%
Working age (18–64)6.1%
Seniors (65+)8.3%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
81.6%
speak English only
Spanish7.8%
Other Indo-European6.8%
Asian & Pacific Islander2.8%
Other languages0.9%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 42.7% of residents not counted as adherents by any reporting body.
Monmouth's mix of affluent Shore towns, commuter suburbs, and rural inland townships once made it a competitive swing county, but its presidential margins have widened toward Republicans by double digits over the past two election cycles.
The Democratic margin in Monmouth County reached its widest at thirty points in 1912. The margin in 2024 was eleven points — a notable narrowing.
Its loyalty is rooted in its place. Median household income of $124,845, a 74% non-Hispanic-white share, and a population of 645,353 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Cape May County and Dorchester County.
Most similar counties
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Monmouth County, New Jersey — The Long Memory. Akashic Intelligence — The Long Memory. https://akashic.app/county/34025/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in New Jersey
More democratic loyalist counties
Frequently asked questions
How did Monmouth County, New Jersey vote in 2024?
In 2024, Monmouth County, New Jersey voted Republican by 11.3 points (R+11), carried by the Republican candidate. Out of 361,596 votes cast, 156,382 went Democratic and 197,409 went Republican.
What is Monmouth County, New Jersey's political archetype?
Akashic classifies Monmouth County, New Jersey as a "Democratic loyalist" county based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the county has voted Democratic 5 times, Republican 29 times, and other 0 times.
When did Monmouth County, New Jersey last vote Democratic?
The most recent presidential election in which Monmouth County, New Jersey voted Democratic was 2000.
How many people live in Monmouth County, New Jersey?
Monmouth County, New Jersey has a population of 645,353 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Monmouth County, New Jersey?
Median household income in Monmouth County, New Jersey is $124,845 — above the national median of $80,734. The New Jersey state median is $103,556.
What is the political history of Monmouth County, New Jersey?
Akashic tracks 38 presidential elections in Monmouth County, New Jersey from 1876 to 2024. Of those, 5 went Democratic and 29 went Republican. The county's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.