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QuickFacts

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

Mercer County, New Jersey
Union County, New Jersey
Somerset County, New Jersey
Hunterdon County, New Jersey
Population estimates, July 1, 2023, (V2023)
381,671
572,726
348,842
130,183
People
Population
Population estimates, July 1, 2023, (V2023)
381,671
572,726
348,842
130,183
Population Estimates, July 1, 2022, (V2022)
380,779
570,417
347,047
129,805
Population estimates base, April 1, 2020, (V2023)
387,328
575,363
345,353
128,950
Population estimates base, April 1, 2020, (V2022)
387,328
575,363
345,353
128,950
Population, percent change - April 1, 2020 (estimates base) to July 1, 2023, (V2023)
-1.5%
-0.5%
1.0%
1.0%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2022, (V2022)
-1.7%
-0.9%
0.5%
0.7%
Population, Census, April 1, 2020 387,340 575,345 345,361 128,947
Population, Census, April 1, 2010 366,513 536,499 323,444 128,349
Age and Sex
Persons under 5 years, percent
5.5%
6.0%
4.8%
4.3%
Persons under 18 years, percent
21.4%
23.2%
20.8%
18.7%
Persons 65 years and over, percent
16.5%
15.3%
17.3%
21.1%
Female persons, percent
50.6%
50.5%
50.6%
50.6%
Race and Hispanic Origin
White alone, percent
61.3%
66.3%
65.6%
89.9%
Black or African American alone, percent(a)
21.8%
24.0%
11.0%
2.9%
American Indian and Alaska Native alone, percent(a)
0.7%
1.0%
0.4%
0.2%
Asian alone, percent(a)
13.0%
6.2%
20.7%
5.0%
Native Hawaiian and Other Pacific Islander alone, percent(a)
0.3%
0.1%
0.1%
0.2%
Two or More Races, percent
2.8%
2.3%
2.2%
1.7%
Hispanic or Latino, percent(b)
20.4%
34.0%
16.4%
8.0%
White alone, not Hispanic or Latino, percent
45.2%
37.6%
51.5%
82.8%
Population Characteristics
Veterans, 2018-2022 11,286 12,830 10,043 5,104
Foreign born persons, percent, 2018-2022 24.6% 31.6% 26.9% 10.4%
Housing
Housing units, July 1, 2022, (V2022) 150,710 211,919 133,445 51,963
Owner-occupied housing unit rate, 2018-2022 62.8% 57.7% 75.3% 84.5%
Median value of owner-occupied housing units, 2018-2022 $327,600 $458,000 $489,500 $478,600
Median selected monthly owner costs -with a mortgage, 2018-2022 $2,519 $3,053 $3,063 $3,038
Median selected monthly owner costs -without a mortgage, 2018-2022 $1,085 $1,390 $1,323 $1,299
Median gross rent, 2018-2022 $1,454 $1,570 $1,846 $1,627
Building permits, 2022 643 3,147 907 483
Families & Living Arrangements
Households, 2018-2022 139,549 199,996 127,566 49,676
Persons per household, 2018-2022 2.62 2.83 2.67 2.54
Living in same house 1 year ago, percent of persons age 1 year+, 2018-2022 86.9% 90.1% 90.0% 90.9%
Language other than English spoken at home, percent of persons age 5 years+, 2018-2022 32.8% 45.6% 33.7% 13.0%
Computer and Internet Use
Households with a computer, percent, 2018-2022 94.1% 93.9% 97.1% 96.1%
Households with a broadband Internet subscription, percent, 2018-2022 88.5% 90.8% 95.1% 93.2%
Education
High school graduate or higher, percent of persons age 25 years+, 2018-2022 89.7% 86.8% 94.0% 95.8%
Bachelor's degree or higher, percent of persons age 25 years+, 2018-2022 44.2% 38.3% 57.3% 55.5%
Health
With a disability, under age 65 years, percent, 2018-2022 7.1% 5.7% 4.7% 5.4%
Persons without health insurance, under age 65 years, percent
7.7%
11.7%
5.3%
4.6%
Economy
In civilian labor force, total, percent of population age 16 years+, 2018-2022 63.8% 68.8% 69.3% 65.4%
In civilian labor force, female, percent of population age 16 years+, 2018-2022 58.9% 63.5% 63.2% 61.5%
Total accommodation and food services sales, 2017 ($1,000)(c) 912,819 1,158,054 941,735 256,520
Total health care and social assistance receipts/revenue, 2017 ($1,000)(c) 3,364,811 3,951,007 2,963,162 1,005,379
Total transportation and warehousing receipts/revenue, 2017 ($1,000)(c) 511,670 3,264,500 705,004 101,063
Total retail sales, 2017 ($1,000)(c) 7,573,863 8,666,629 6,750,809 2,478,717
Total retail sales per capita, 2017(c) $20,554 $15,624 $20,417 $19,818
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2018-2022 27.5 30.6 31.3 33.7
Income & Poverty
Median household income (in 2022 dollars), 2018-2022 $92,697 $95,000 $131,948 $133,534
Per capita income in past 12 months (in 2022 dollars), 2018-2022 $50,053 $49,666 $67,554 $68,112
Persons in poverty, percent
10.6%
9.6%
5.1%
4.1%
Businesses
Businesses
Total employer establishments, 2021 9,706 13,996 9,727 3,704
Total employment, 2021 187,231 187,879 179,324 42,410
Total annual payroll, 2021 ($1,000) 15,180,911 14,061,185 17,314,893 3,060,575
Total employment, percent change, 2020-2021 -7.4% -8.4% -5.0% -6.4%
Total nonemployer establishments, 2021 28,559 50,862 30,115 12,286
All employer firms, Reference year 2017 8,207 11,974 8,671 3,411
Men-owned employer firms, Reference year 2017 4,988 7,754 5,563 2,154
Women-owned employer firms, Reference year 2017 1,404 2,127 1,383 577
Minority-owned employer firms, Reference year 2017 1,843 2,880 2,088 302
Nonminority-owned employer firms, Reference year 2017 5,099 7,927 5,538 2,736
Veteran-owned employer firms, Reference year 2017 317 S 329 151
Nonveteran-owned employer firms, Reference year 2017 6,654 10,279 7,237 2,857
Geography
Geography
Population per square mile, 2020 1,725.8 5,598.6 1,144.1 301.4
Population per square mile, 2010 1,632.2 5,216.1 1,071.7 300.0
Land area in square miles, 2020 224.44 102.77 301.87 427.84
Land area in square miles, 2010 224.56 102.86 301.81 427.82
FIPS Code 34021 34039 34035 34019
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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