Mendham vs Riverdale

A side-by-side comparison of Mendham and Riverdale: population, income, housing, and more.

Mendham and Riverdale are places in New Jersey. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Mendham has the higher population (4,977 vs 4,084 in Riverdale). Mendham has the higher median household income ($223,750 vs $96,667 in Riverdale). Mendham has the higher median home value ($764,000 vs $384,500 in Riverdale).

Population, income & housing

	Mendham	Riverdale
Population	4,977	4,084
Median age	46.6 yrs	50.2 yrs
Median household income	$223,750	$96,667
Median home value	$764,000	$384,500
Median gross rent	$3,250	$2,351
Housing units	1,823	2,038
Homeownership rate	85.7%	71.4%
Bachelor's degree or higher	79.2%	47.7%
Unemployment rate	3.2%	1.3%

Trends (ACS 5-year, 2019–2023)

	Mendham	Riverdale
Population	4,917 → 4,977 (+1.2%)	4,197 → 4,084 (-2.7%)
Median household income	$151,875 → $223,750 (+47.3%)	$110,664 → $96,667 (-12.6%)
Median home value	$662,300 → $764,000 (+15.4%)	$347,400 → $384,500 (+10.7%)
Median gross rent	$1,581 → $3,250 (+105.6%)	$2,098 → $2,351 (+12.1%)

Mendham

Population

4,9174,977

Median household income

$151,875$223,750

Median home value

$662,300$764,000

Median gross rent

$1,581$3,250

Riverdale

Population

4,1974,084

Median household income

$110,664$96,667

Median home value

$347,400$384,500

Median gross rent

$2,098$2,351

Age & race/ethnicity

Age distribution (share)

	Mendham	Riverdale
Under 5	3.9%	3.8%
5 to 17	19.1%	13.5%
18 to 24	6.5%	7.0%
25 to 34	7.6%	10.6%
35 to 44	10.2%	9.2%
45 to 54	17.2%	13.9%
55 to 64	14.1%	20.2%
65 to 74	11.6%	11.4%
75 and over	9.6%	10.5%

Race & ethnicity (share)

	Mendham	Riverdale
White (non-Hispanic)	81.8%	75.2%
Black or African American	0.0%	1.7%
American Indian & Alaska Native	0.0%	0.0%
Asian	6.6%	3.2%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.2%
Two or more races	5.9%	4.3%
Hispanic or Latino	5.6%	15.4%

Educational attainment (age 25+)

Share of adults 25+

	Mendham	Riverdale
No high school diploma	1.3%	3.0%
High school graduate	8.5%	26.8%
Some college or associate's	11.1%	22.4%
Bachelor's degree	40.2%	30.6%
Graduate or professional degree	38.9%	17.1%

Commute to work

How workers get to work (share)

	Mendham	Riverdale
Drove alone	59.9%	81.6%
Carpooled	1.9%	2.6%
Public transit	3.6%	2.2%
Walked	1.8%	0.0%
Bicycle	0.0%	0.0%
Worked from home	30.8%	13.7%
Other means	1.9%	0.0%

Housing

Units in structure (share)

	Mendham	Riverdale
1-unit, detached	78.9%	38.1%
1-unit, attached	15.6%	2.9%
2 to 4 units	2.0%	9.1%
5 to 19 units	2.1%	10.3%
20 or more units	1.4%	39.6%
Mobile home & other	0.0%	0.0%

Poverty & households

	Mendham	Riverdale
Poverty rate	2.2%	10.1%
Average household size	2.67	2.05
Mean commute (minutes)	33	30
Median year structure built	1972	1995