US Census Data

Monmouth County vs Union County

A side-by-side comparison of Monmouth County and Union County: population, income, housing, and more.

Monmouth County and Union County are counties in New Jersey. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Monmouth County has the higher population (643,615 vs 572,549 in Union County). Monmouth County has the higher median household income ($122,727 vs $100,117 in Union County). Monmouth County has the higher median home value ($566,500 vs $488,800 in Union County).

Population, income & housing

Monmouth CountyUnion County
Population643,615572,549
Median age43.2 yrs39.1 yrs
Median household income$122,727$100,117
Median home value$566,500$488,800
Median gross rent$1,771$1,664
Housing units269,728211,269
Homeownership rate75.4%57.6%
Bachelor's degree or higher50.6%38.6%
Unemployment rate5.2%6.3%

Trends (ACS 5-year, 2019–2023)

Monmouth CountyUnion County
Population621,659 → 643,615 (+3.5%)554,033 → 572,549 (+3.3%)
Median household income$99,733 → $122,727 (+23.1%)$80,198 → $100,117 (+24.8%)
Median home value$421,900 → $566,500 (+34.3%)$367,200 → $488,800 (+33.1%)
Median gross rent$1,399 → $1,771 (+26.6%)$1,290 → $1,664 (+29.0%)

Monmouth County

Population
621,659643,615
Median household income
$99,733$122,727
Median home value
$421,900$566,500
Median gross rent
$1,399$1,771

Union County

Population
554,033572,549
Median household income
$80,198$100,117
Median home value
$367,200$488,800
Median gross rent
$1,290$1,664

Age & race/ethnicity

Age distribution (share)

Monmouth CountyUnion County
Under 55.0%6.2%
5 to 1716.1%17.4%
18 to 248.2%8.2%
25 to 3411.0%12.4%
35 to 4411.8%14.0%
45 to 5413.7%13.8%
55 to 6415.8%13.2%
65 to 7411.0%8.7%
75 and over7.5%6.1%

Race & ethnicity (share)

Monmouth CountyUnion County
White (non-Hispanic)72.1%36.3%
Black or African American5.9%19.6%
American Indian & Alaska Native0.0%0.0%
Asian5.3%5.5%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.7%1.4%
Two or more races3.3%2.8%
Hispanic or Latino12.7%34.4%

Educational attainment (age 25+)

Share of adults 25+

Monmouth CountyUnion County
No high school diploma5.8%13.7%
High school graduate21.4%26.7%
Some college or associate's22.2%21.0%
Bachelor's degree30.9%22.9%
Graduate or professional degree19.7%15.6%

Commute to work

How workers get to work (share)

Monmouth CountyUnion County
Drove alone66.8%62.4%
Carpooled7.2%8.3%
Public transit5.5%9.6%
Walked1.5%2.4%
Bicycle0.5%0.2%
Worked from home16.8%12.9%
Other means1.7%4.2%

Housing

Units in structure (share)

Monmouth CountyUnion County
1-unit, detached66.1%49.7%
1-unit, attached9.5%5.0%
2 to 4 units6.4%24.8%
5 to 19 units7.8%7.6%
20 or more units9.1%12.7%
Mobile home & other1.1%0.2%

Poverty & households

Monmouth CountyUnion County
Poverty rate6.4%8.9%
Average household size2.552.81
Mean commute (minutes)3331
Median year structure built19751956

Full profiles

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