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QuickFacts

Union County, New Jersey; Mercer County, New Jersey; Somerset County, New Jersey

QuickFacts provides statistics for all states and counties. Also for cities and towns with a population of 5,000 or more.

Table

Union County, New Jersey
Mercer County, New Jersey
Somerset County, New Jersey
Population estimates, July 1, 2023, (V2023)
572,726
381,671
348,842
People
Population
Population estimates, July 1, 2023, (V2023)
572,726
381,671
348,842
Population Estimates, July 1, 2022, (V2022)
570,417
380,779
347,047
Population estimates base, April 1, 2020, (V2023)
575,363
387,328
345,353
Population estimates base, April 1, 2020, (V2022)
575,363
387,328
345,353
Population, percent change - April 1, 2020 (estimates base) to July 1, 2023, (V2023)
-0.5%
-1.5%
1.0%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2022, (V2022)
-0.9%
-1.7%
0.5%
Population, Census, April 1, 2020 575,345 387,340 345,361
Population, Census, April 1, 2010 536,499 366,513 323,444
Age and Sex
Persons under 5 years, percent
6.0%
5.5%
4.8%
Persons under 18 years, percent
23.2%
21.4%
20.8%
Persons 65 years and over, percent
15.3%
16.5%
17.3%
Female persons, percent
50.5%
50.6%
50.6%
Race and Hispanic Origin
White alone, percent
66.3%
61.3%
65.6%
Black or African American alone, percent(a)
24.0%
21.8%
11.0%
American Indian and Alaska Native alone, percent(a)
1.0%
0.7%
0.4%
Asian alone, percent(a)
6.2%
13.0%
20.7%
Native Hawaiian and Other Pacific Islander alone, percent(a)
0.1%
0.3%
0.1%
Two or More Races, percent
2.3%
2.8%
2.2%
Hispanic or Latino, percent(b)
34.0%
20.4%
16.4%
White alone, not Hispanic or Latino, percent
37.6%
45.2%
51.5%
Population Characteristics
Veterans, 2018-2022 12,830 11,286 10,043
Foreign born persons, percent, 2018-2022 31.6% 24.6% 26.9%
Housing
Housing units, July 1, 2022, (V2022) 211,919 150,710 133,445
Owner-occupied housing unit rate, 2018-2022 57.7% 62.8% 75.3%
Median value of owner-occupied housing units, 2018-2022 $458,000 $327,600 $489,500
Median selected monthly owner costs -with a mortgage, 2018-2022 $3,053 $2,519 $3,063
Median selected monthly owner costs -without a mortgage, 2018-2022 $1,390 $1,085 $1,323
Median gross rent, 2018-2022 $1,570 $1,454 $1,846
Building permits, 2022 3,147 643 907
Families & Living Arrangements
Households, 2018-2022 199,996 139,549 127,566
Persons per household, 2018-2022 2.83 2.62 2.67
Living in same house 1 year ago, percent of persons age 1 year+, 2018-2022 90.1% 86.9% 90.0%
Language other than English spoken at home, percent of persons age 5 years+, 2018-2022 45.6% 32.8% 33.7%
Computer and Internet Use
Households with a computer, percent, 2018-2022 93.9% 94.1% 97.1%
Households with a broadband Internet subscription, percent, 2018-2022 90.8% 88.5% 95.1%
Education
High school graduate or higher, percent of persons age 25 years+, 2018-2022 86.8% 89.7% 94.0%
Bachelor's degree or higher, percent of persons age 25 years+, 2018-2022 38.3% 44.2% 57.3%
Health
With a disability, under age 65 years, percent, 2018-2022 5.7% 7.1% 4.7%
Persons without health insurance, under age 65 years, percent
11.7%
7.7%
5.3%
Economy
In civilian labor force, total, percent of population age 16 years+, 2018-2022 68.8% 63.8% 69.3%
In civilian labor force, female, percent of population age 16 years+, 2018-2022 63.5% 58.9% 63.2%
Total accommodation and food services sales, 2017 ($1,000)(c) 1,158,054 912,819 941,735
Total health care and social assistance receipts/revenue, 2017 ($1,000)(c) 3,951,007 3,364,811 2,963,162
Total transportation and warehousing receipts/revenue, 2017 ($1,000)(c) 3,264,500 511,670 705,004
Total retail sales, 2017 ($1,000)(c) 8,666,629 7,573,863 6,750,809
Total retail sales per capita, 2017(c) $15,624 $20,554 $20,417
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2018-2022 30.6 27.5 31.3
Income & Poverty
Median household income (in 2022 dollars), 2018-2022 $95,000 $92,697 $131,948
Per capita income in past 12 months (in 2022 dollars), 2018-2022 $49,666 $50,053 $67,554
Persons in poverty, percent
9.6%
10.6%
5.1%
Businesses
Businesses
Total employer establishments, 2021 13,996 9,706 9,727
Total employment, 2021 187,879 187,231 179,324
Total annual payroll, 2021 ($1,000) 14,061,185 15,180,911 17,314,893
Total employment, percent change, 2020-2021 -8.4% -7.4% -5.0%
Total nonemployer establishments, 2021 50,862 28,559 30,115
All employer firms, Reference year 2017 11,974 8,207 8,671
Men-owned employer firms, Reference year 2017 7,754 4,988 5,563
Women-owned employer firms, Reference year 2017 2,127 1,404 1,383
Minority-owned employer firms, Reference year 2017 2,880 1,843 2,088
Nonminority-owned employer firms, Reference year 2017 7,927 5,099 5,538
Veteran-owned employer firms, Reference year 2017 S 317 329
Nonveteran-owned employer firms, Reference year 2017 10,279 6,654 7,237
Geography
Geography
Population per square mile, 2020 5,598.6 1,725.8 1,144.1
Population per square mile, 2010 5,216.1 1,632.2 1,071.7
Land area in square miles, 2020 102.77 224.44 301.87
Land area in square miles, 2010 102.86 224.56 301.81
FIPS Code 34039 34021 34035
Value Notes

Methodology differences may exist between data sources, and so estimates from different sources are not comparable.

Some estimates presented here come from sample data, and thus have sampling errors that may render some apparent differences between geographies statistically indistinguishable. Click the Quick Info icon to the left of each row in TABLE view to learn about sampling error.

The vintage year (e.g., V2023) refers to the final year of the series (2020 thru 2023). Different vintage years of estimates are not comparable.

Users should exercise caution when comparing 2018-2022 ACS 5-year estimates to other ACS estimates. For more information, please visit the 2022 5-year ACS Comparison Guidance page.

Fact Notes Value Flags

QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

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