New Castle, IN, Indiana: Populist metro. In 2024, voted R+48%. Republican peak: R+48 in 2024.
Key facts
- 2024 presidential margin
- R+48MIT Election Lab
- Political archetype
- PopulistAkashic typology
- Population
- 48,9702024 5-year
- Median household income
- $63,1502024 5-year
- White (non-Hispanic)
- 92.8%2024 5-year
- Black
- 2.2%2024 5-year
- Hispanic / Latino
- 2.3%2024 5-year
- Peak Democratic margin
- D+10 in 1964MIT Election Lab
- Peak Republican margin
- R+48 in 2024MIT Election Lab
Constituent county margins for New Castle, IN, INOne 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 |
|---|---|---|---|---|---|
| R | 5,208 | 15,033 | 20,660 | ||
| R | 5,544 | 15,043 | 21,030 | ||
| R | 5,124 | 13,895 | 20,290 | ||
| R | 7,613 | 10,838 | 19,007 | ||
| R | 10,059 | 10,896 | 21,319 | ||
| R | 7,176 | 13,137 | 20,504 | ||
| R | 7,647 | 10,321 | 18,315 | ||
| R | 7,667 | 8,537 | 18,691 | ||
| R | 6,794 | 8,720 | 19,989 | ||
| R | 7,779 | 11,280 | 19,116 | ||
| R | 7,064 | 11,926 | 19,062 | ||
| R | 7,626 | 12,724 | 21,196 | ||
| R | 10,137 | 11,620 | 21,848 | ||
| R | 5,610 | 14,538 | 20,208 | ||
| R | 8,045 | 11,626 | 22,097 | ||
| D | 12,374 | 10,184 | 22,697 | ||
| R | 9,629 | 13,752 | 23,530 | ||
| R | 8,502 | 13,750 | 22,418 | ||
| R | 8,378 | 14,184 | 22,882 | ||
| R | 8,523 | 10,487 | 19,421 | ||
| R | 8,297 | 10,583 | 19,296 | ||
| R | 9,623 | 11,051 | 20,858 | ||
| D | 10,172 | 9,099 | 19,420 | ||
| R | 8,255 | 8,430 | 17,319 | ||
| R | 4,554 | 10,502 | 15,324 | ||
| R | 5,376 | 8,800 | 14,461 | ||
| R | 5,824 | 8,742 | 15,328 | ||
| R | 3,560 | 4,386 | 8,771 | ||
| D | 2,687 | 2,479 | 7,717 | ||
| R | 3,197 | 4,358 | 7,978 | ||
| R | 2,482 | 4,391 | 7,319 | ||
| R | 2,754 | 4,047 | 7,135 | ||
| R | 2,980 | 4,001 | 7,090 | ||
| R | 1,871 | 3,336 | 6,061 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
16.9%
English
16.3%
Irish
10.7%
American
10.0%
Scottish
1.9%
French
1.0%
Italian
0.9%
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: 42.2 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
$63,150
New Castle, IN ranks near the middle of US counties.
New Castle, IN$63,150
Indiana$71,957
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
13.6%
Children face moderate poverty.
Children under 1818.8%
Working age (18–64)12.8%
Seniors (65+)6.9%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
97.7%
speak English only
Spanish1.6%
Other Indo-European0.4%
Asian & Pacific Islander0.3%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 70.6% of residents not counted as adherents by any reporting body.
New Castle anchors a compact Indiana metro where blue-collar industrial identity has historically kept margins tighter than the surrounding rural counties, even as the region has trended more reliably Republican over the past two decades.
The Democratic margin in New Castle, IN peaked at ten points in 1964. By 1968 the metro had flipped, voting Republican for the first time in many years. The 2024 margin was forty-eight points, the most Republican-leaning result in the metro's modern history.
The economic context is the key. The median household income of $63,150 sits well below state and national norms, and 14% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country.
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
New Castle, IN, Indiana — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/cbsa/35220/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did New Castle, IN, Indiana vote in 2024?
In 2024, New Castle, IN, Indiana voted Republican by 47.6 points (R+48), carried by the Republican candidate. Out of 20,660 votes cast, 5,208 went Democratic and 15,033 went Republican.
What is New Castle, IN, Indiana's political archetype?
Akashic classifies New Castle, IN, Indiana as a "Populist" metro based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the metro has voted Democratic 3 times, Republican 31 times, and other 0 times.
When did New Castle, IN, Indiana last vote Democratic?
The most recent presidential election in which New Castle, IN, Indiana voted Democratic was 1964.
How many people live in New Castle, IN, Indiana?
New Castle, IN, Indiana has a population of 48,970 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in New Castle, IN, Indiana?
Median household income in New Castle, IN, Indiana is $63,150 — below the national median of $80,734. The Indiana state median is $71,957.
What is the political history of New Castle, IN, Indiana?
Akashic tracks 38 presidential elections in New Castle, IN, Indiana from 1876 to 2024. Of those, 3 went Democratic and 31 went Republican. The metro's archetype — "Populist" — captures the overall trajectory of that voting record.