Union County, New Jersey

2024 results by precinct

434 precincts · 241,923 votes cast

Harris · D+24

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	D	+24.1%	147,327	89,063	241,923
2020	D	+35.9%	170,310	80,038	251,775
2016	D	+35.5%	147,414	68,114	223,570
2012	D	+34.0%	139,752	68,314	210,088
2008	D	+28.2%	141,417	78,768	222,097
2004	D	+18.1%	119,372	82,517	203,502
2000	D	+23.3%	112,003	68,554	186,373
1996	D	+22.2%	108,102	65,912	190,241
1992	D	+4.2%	96,671	87,742	210,112
1988	R	−9.5%	93,158	112,967	208,153
1984	R	−18.9%	92,056	135,446	229,140
1980	R	−12.1%	86,074	112,288	217,339
1976	R	−5.1%	106,267	118,019	228,902
1972	R	−23.8%	90,482	148,290	242,973
1968	R	−0.3%	109,674	110,309	241,256
1964	D	+32.9%	164,989	82,999	249,347
1960	R	−1.3%	119,986	123,224	245,008
1956	R	−36.4%	67,540	146,228	216,414
1952	R	−21.9%	78,336	122,885	203,245
1948	R	−12.7%	66,759	87,402	162,180
1944	R	−6.4%	75,969	86,543	164,625
1940	R	−6.1%	70,737	79,962	152,296
1936	D	+8.5%	70,813	59,553	132,097
1932	R	−13.1%	51,357	67,512	122,961
1928	R	−28.9%	37,476	68,119	106,092
1924	R	−48.1%	14,738	50,356	74,060
1920	R	−50.3%	12,103	39,409	54,303
1916	R	−22.6%	10,328	16,705	28,214
1912	D	+17.0%	9,695	5,421	25,156
1908	R	−27.2%	8,806	15,919	26,139
1904	R	−22.8%	8,574	13,906	23,396
1900	R	−22.9%	7,665	12,522	21,248
1896	R	−29.6%	6,073	11,707	19,010
1892	D	+4.6%	8,600	7,825	16,934
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

0.5%

African American

15.9%

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: 39.1 in this county, 39.1 nationally

Male

Age

Female

0.6%

85+

1.2%

1.9%

75–84

2.6%

4.1%

65–74

4.7%

6.4%

55–64

6.6%

6.8%

45–54

6.8%

7.1%

35–44

7.0%

6.3%

25–34

6.2%

4.2%

18–24

4.1%

8.9%

5–17

8.5%

3.2%

3.0%

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

Median household income

2024 inflation-adjusted dollars

$103,202

Union County ranks in the top 5% of US counties.

Union County$103,202

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

9.2%

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

35.6%

Non-Christian

6.5%

Other Christian

5.8%

Baptist

3.2%

Mainline Protestant

2.5%

Pentecostal & Holiness

1.8%

Methodist

1.1%

Source · 2020 US Religion Census. Remaining 43.5% of residents not counted as adherents by any reporting body.

Union County sits at the urban-suburban seam of northeastern New Jersey, blending Elizabeth's heavily immigrant working-class wards with older bedroom communities like Westfield, producing a consistent Democratic tilt that has widened as college-educated suburbs have shifted leftward.

The Democratic margin in Union County has been steady. It reached its modern peak at thirty-six points in 2020; the 2024 margin was twenty-four points, still in line with the county's long pattern.

Union County's political identity is inseparable from its demographic profile: a 39% non-Hispanic-white share, a median household income of $103,202, and the full diversity of a major metropolitan center. The county's voting pattern resembles other major urban centers most closely — Westchester County and Leflore County.

Most similar counties

Union County is one of the bluest places in America.