Mercer County vs Morris County

A side-by-side comparison of Mercer County and Morris County: population, income, housing, and more.

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

Morris County has the higher population (510,375 vs 383,286 in Mercer County). Morris County has the higher median household income ($134,929 vs $96,333 in Mercer County). Morris County has the higher median home value ($557,000 vs $351,000 in Mercer County).

Population, income & housing

	Mercer County	Morris County
Population	383,286	510,375
Median age	39.2 yrs	42.7 yrs
Median household income	$96,333	$134,929
Median home value	$351,000	$557,000
Median gross rent	$1,515	$1,860
Housing units	150,600	198,611
Homeownership rate	61.9%	73.9%
Bachelor's degree or higher	44.9%	57.2%
Unemployment rate	6.1%	5.2%

Trends (ACS 5-year, 2019–2023)

	Mercer County	Morris County
Population	367,922 → 383,286 (+4.2%)	493,379 → 510,375 (+3.4%)
Median household income	$81,057 → $96,333 (+18.8%)	$115,527 → $134,929 (+16.8%)
Median home value	$291,100 → $351,000 (+20.6%)	$456,200 → $557,000 (+22.1%)
Median gross rent	$1,266 → $1,515 (+19.7%)	$1,534 → $1,860 (+21.3%)

Mercer County

Population

367,922383,286

Median household income

$81,057$96,333

Median home value

$291,100$351,000

Median gross rent

$1,266$1,515

Morris County

Population

493,379510,375

Median household income

$115,527$134,929

Median home value

$456,200$557,000

Median gross rent

$1,534$1,860

Age & race/ethnicity

Age distribution (share)

	Mercer County	Morris County
Under 5	5.6%	5.0%
5 to 17	16.3%	15.8%
18 to 24	10.4%	8.2%
25 to 34	12.4%	11.2%
35 to 44	13.0%	12.8%
45 to 54	13.6%	14.1%
55 to 64	13.1%	15.0%
65 to 74	9.2%	10.0%
75 and over	6.5%	7.8%

Race & ethnicity (share)

	Mercer County	Morris County
White (non-Hispanic)	44.2%	66.9%
Black or African American	18.3%	3.0%
American Indian & Alaska Native	0.1%	0.0%
Asian	12.0%	10.6%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.3%	0.6%
Two or more races	2.8%	3.3%
Hispanic or Latino	22.2%	15.5%

Educational attainment (age 25+)

Share of adults 25+

	Mercer County	Morris County
No high school diploma	10.1%	4.9%
High school graduate	24.5%	19.0%
Some college or associate's	20.5%	18.9%
Bachelor's degree	24.3%	33.6%
Graduate or professional degree	20.6%	23.7%

Commute to work

How workers get to work (share)

	Mercer County	Morris County
Drove alone	61.5%	68.1%
Carpooled	9.2%	5.8%
Public transit	5.2%	3.5%
Walked	3.5%	1.7%
Bicycle	0.7%	0.1%
Worked from home	17.8%	19.6%
Other means	2.1%	1.2%

Housing

Units in structure (share)

	Mercer County	Morris County
1-unit, detached	47.5%	65.1%
1-unit, attached	20.6%	8.3%
2 to 4 units	8.5%	6.9%
5 to 19 units	12.2%	9.1%
20 or more units	10.8%	10.3%
Mobile home & other	0.5%	0.3%

Poverty & households

	Mercer County	Morris County
Poverty rate	11.1%	5.1%
Average household size	2.58	2.61
Mean commute (minutes)	28	30
Median year structure built	1967	1971