New Castle County, Delaware

2024 results by precinct

311 precincts · 275,160 votes cast

Harris · D+33

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	D	+32.6%	180,568	90,768	275,160
2020	D	+37.1%	195,034	88,364	287,633
2016	D	+29.6%	162,919	85,525	261,507
2012	D	+34.1%	167,082	81,230	251,996
2008	D	+40.6%	178,768	74,608	256,417
2004	D	+22.0%	146,179	93,079	241,527
2000	D	+23.0%	127,539	78,587	213,060
1996	D	+21.1%	98,837	60,943	179,546
1992	D	+12.8%	91,516	66,311	196,817
1988	R	−7.8%	79,147	92,587	173,003
1984	R	−14.6%	76,238	102,322	179,077
1980	R	−0.0%	76,897	76,898	168,427
1976	D	+4.4%	87,521	80,074	170,338
1972	R	−17.6%	70,190	100,681	172,956
1968	R	−1.0%	68,468	70,014	156,413
1964	D	+25.2%	91,752	54,767	146,893
1960	D	+2.9%	73,364	69,284	142,974
1956	R	−11.5%	56,405	71,133	127,813
1952	R	−3.5%	58,387	62,658	121,396
1948	D	+0.7%	48,117	47,451	97,001
1944	D	+13.5%	49,588	37,783	87,689
1940	D	+11.4%	52,167	41,508	93,675
1936	D	+11.0%	47,315	37,851	85,766
1932	R	−9.4%	32,872	39,844	74,109
1928	R	−35.8%	22,464	47,641	70,412
1924	R	−30.4%	17,842	35,427	57,851
1920	R	−19.7%	24,252	36,600	62,791
1916	R	−4.0%	14,894	16,166	31,976
1912	D	+15.9%	13,009	8,340	29,384
1908	R	−7.0%	12,964	14,979	28,644
1904	—	No data	—	—	—
1900	—	No data	—	—	—
1896	—	No data	—	—	—
1892	—	No data	—	—	—
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

American

100.0%

Polish

1.1%

African American

20.5%

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. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 39.3 in this county, 39.1 nationally

Male

Age

Female

0.7%

85+

1.2%

2.2%

75–84

2.8%

4.7%

65–74

5.5%

6.4%

55–64

7.0%

5.9%

45–54

6.3%

6.6%

35–44

6.7%

6.9%

25–34

7.0%

4.5%

18–24

4.5%

8.0%

5–17

7.8%

2.8%

2.7%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$91,166

New Castle County ranks in the top 10% of US counties.

New Castle County$91,166

Delaware$84,954

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

10.1%

Children face moderate poverty.

Children under 1818.0%

Working age (18–64)100.0%

Seniors (65+)18.0%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

0.0%

speak English only

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

26.0%

Other Christian

7.7%

Non-Christian

4.1%

Methodist

3.3%

Mainline Protestant

3.1%

Baptist

2.2%

Pentecostal & Holiness

0.9%

Source · 2020 US Religion Census. Remaining 52.7% of residents not counted as adherents by any reporting body.

Home to Wilmington and the state's densest urban corridor, New Castle generates enough Democratic margin to effectively determine statewide outcomes on its own, routinely outweighing the two smaller, more competitive downstate counties combined.

The Democratic margin in New Castle County has been steady. It reached its modern peak at forty-one points in 2008; the 2024 margin was thirty-three points, still in line with the county's long pattern.

New Castle County's political identity is inseparable from its demographic profile: a 54% non-Hispanic-white share, a median household income of $91,166, and the full diversity of a major metropolitan center. The county's voting pattern resembles other major urban centers most closely — Ingham County and Onondaga County.

Most similar counties

New Castle County is one of the bluest places in America.