Union City, New Jersey's estimated population is 68,520 according to the most recent United States census estimates. Union City, New Jersey is the 9th largest city in New Jersey based on official 2017 estimates from the US Census Bureau.
The population density is 53239.89 people/mi² (20555.94 people/km²).
The overall median age is 36 years, 34.9 years for males, and 37.2 years for females. For every 100 females there are 100.2 males.
Based on data from the American Community Survey, in 2017 there were 26,250 households in the city, with an average size of 2.95 people per household. The homeowner vacancy rate was 4%, with a median rent of $1177/month. The median house has 3.9 rooms, and has a value of $296,200.
The median income for households in Union City, New Jersey is $43,424, while the mean household income is $58,772.
| Year | Population | Growth | Annual Growth Rate |
| 2018 | 68,520 | 48 | 0.07% |
| 2017 | 68,472 | 99 | 0.14% |
| 2016 | 68,373 | 253 | 0.37% |
| 2015 | 68,120 | -181 | -0.27% |
| 2014 | 68,301 | 79 | 0.12% |
| 2013 | 68,222 | 395 | 0.58% |
| 2012 | 67,827 | 408 | 0.61% |
| 2011 | 67,419 | 986 | 1.48% |
| 2010 | 66,433 | -655 | -0.10% |
| 2000 | 67,088 | 9,076 | 1.46% |
| 1990 | 58,012 | 2,419 | 0.43% |
| 1980 | 55,593 | -1,712 | -0.30% |
| 1970 | 57,305 | 5,125 | 0.94% |
| 1960 | 52,180 | -3,357 | -0.62% |
| 1950 | 55,537 | -636 | -0.11% |
| 1940 | 56,173 | -2,486 | -0.43% |
| 1930 | 58,659 | 38,008 | 11.00% |
| 1920 | 20,651 | -372 | -0.18% |
| 1910 | 21,023 | 5,836 | 3.31% |
| 1900 | 15,187 | 4,544 | 3.62% |
| 1890 | 10,643 | 4,794 | 6.17% |
| 1880 | 5,849 | 1,209 | 2.34% |
| 1870 | 4,640 | 0.00% |
| Race | Population |
| White | 50,319 |
| Some Other Race | 10,856 |
| Black or African American | 3,375 |
| Asian | 2,856 |
| Two or More Races | 2,039 |
| American Indian and Alaska Native | 313 |
| Native Hawaiian and Other Pacific Islander | 57 |
36
34.9
37.2
There are 54,485 adults, (7,340 of whom are seniors) in Union City Nj.
Female
34,872
49.95%
Male
34,943
50.05%
| Type | Count | Average Size | Owned |
| All | 23,515 | 2.95 | 20 |
| Married | 8,492 | 3.63 | 29.2 |
| Non Family | 7,528 | 1.43 | 20.7 |
| Female | 5,089 | 3.67 | 7.3 |
| Male | 2,406 | 3.78 | 12.1 |
| Education Attained | Count | Percentage |
| Less Than 9th Grade | 9,910 | 20.67% |
| 9th to 12th Grade | 4,659 | 9.72% |
| High School Graduate | 15,484 | 32.29% |
| Some College | 6,340 | 13.22% |
| Associates Degree | 1,996 | 4.16% |
| Bachelors Degree | 6,581 | 13.73% |
| Graduate Degree | 2,976 | 6.21% |
| Name | Total | High School | Bachelors |
| Hispanic | 38,954 | 25,370 | 5,295 |
| Other Race | 7,455 | 4,819 | 1,030 |
| White | 5,443 | 4,900 | 2,555 |
| Black | 2,562 | 1,897 | 640 |
| Asian | 2,168 | 1,764 | 1,237 |
| Multiple Races | 1,099 | 905 | 267 |
| Native American | 122 | 96 | 13 |
| Islander | 44 | 44 |
The highest rate of high school graduation is among islander people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 57.06%.
$25,680
Average Earnings
$30,102
Average Male
$21,390
Average Female
14.40% of Union City Nj residents speak only English, while 85.60% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 79.95% of the population.
| Name | Total | In Poverty | Poverty Rate |
| Hispanic | 55,314 | 13,569 | 24.53% |
| Other | 10,850 | 2,305 | 21.24% |
| White | 9,260 | 1,816 | 19.61% |
| Black | 3,328 | 625 | 18.78% |
| Multiple | 2,039 | 479 | 23.49% |
| Asian | 2,848 | 300 | 10.53% |
| Native | 313 | 226 | 72.20% |
23.00%
Overall Poverty Rate
19.46%
Male Poverty Rate
26.57%
Female Poverty Rate
The race most likely to be in poverty in Union City Nj is Native, with 72.20% below the poverty level.
The race least likely to be in poverty in Union City Nj is Asian, with 10.53% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 7.96%. Among those working part-time, it was 22.72%, and for those that did not work, the poverty rate was 37.21%.
37.6%
Overall Marriage Rate
39.4%
Male Marriage Rate
35.8%
Female Marriage Rate
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
| Name | Veterans | % of Total |
| White | 339 | 0.87% |
| Hispanic | 301 | 0.68% |
| Black | 87 | 2.95% |
| 2 or More | 44 | 3.35% |
| Other | 25 | 0.29% |
| Asian | 17 | 0.72% |
13.67%
Veteran Poverty Rate
16.99%
Veteran Disability Rate
68.7%
Labor Force Participation
63.7%
Employment Rate
7.1%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
40.97%
Native Born
59.03%
Foreign Born
34.69%
Non Citizen
40.97% of Union City Nj residents were born in the United States, with 27.94% having been born in New Jersey. 34.69% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.