Monument Beach vs South Dennis

A side-by-side comparison of Monument Beach and South Dennis: population, income, housing, and more.

Monument Beach and South Dennis are places in Massachusetts. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

South Dennis has the higher population (3,190 vs 3,067 in Monument Beach). Monument Beach has the higher median household income ($86,953 vs $86,500 in South Dennis). Monument Beach has the higher median home value ($540,600 vs $454,400 in South Dennis).

Population, income & housing

	Monument Beach	South Dennis
Population	3,067	3,190
Median age	46.9 yrs	55.2 yrs
Median household income	$86,953	$86,500
Median home value	$540,600	$454,400
Median gross rent	$1,723	$1,542
Housing units	1,742	2,619
Homeownership rate	76.4%	80.8%
Bachelor's degree or higher	46.1%	37.1%
Unemployment rate	1.6%	3.4%

Trends (ACS 5-year, 2019–2023)

	Monument Beach	South Dennis
Population	2,807 → 3,067 (+9.3%)	3,393 → 3,190 (-6.0%)
Median household income	$73,860 → $86,953 (+17.7%)	$59,963 → $86,500 (+44.3%)
Median home value	$397,700 → $540,600 (+35.9%)	$314,400 → $454,400 (+44.5%)
Median gross rent	$1,474 → $1,723 (+16.9%)	$1,374 → $1,542 (+12.2%)

Monument Beach

Population

2,8073,067

Median household income

$73,860$86,953

Median home value

$397,700$540,600

Median gross rent

$1,474$1,723

South Dennis

Population

3,3933,190

Median household income

$59,963$86,500

Median home value

$314,400$454,400

Median gross rent

$1,374$1,542

Age & race/ethnicity

Age distribution (share)

	Monument Beach	South Dennis
Under 5	5.2%	3.0%
5 to 17	14.8%	8.3%
18 to 24	9.4%	7.6%
25 to 34	14.0%	7.4%
35 to 44	3.7%	14.0%
45 to 54	16.0%	9.2%
55 to 64	9.9%	18.7%
65 to 74	16.5%	16.5%
75 and over	10.5%	15.4%

Race & ethnicity (share)

	Monument Beach	South Dennis
White (non-Hispanic)	90.2%	91.2%
Black or African American	0.0%	4.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	1.1%	0.5%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	8.1%	3.2%
Two or more races	0.6%	0.4%
Hispanic or Latino	0.0%	0.7%

Educational attainment (age 25+)

Share of adults 25+

	Monument Beach	South Dennis
No high school diploma	2.5%	2.9%
High school graduate	18.9%	32.0%
Some college or associate's	32.5%	27.9%
Bachelor's degree	30.8%	24.1%
Graduate or professional degree	15.2%	13.0%

Commute to work

How workers get to work (share)

	Monument Beach	South Dennis
Drove alone	83.1%	81.0%
Carpooled	5.8%	12.9%
Public transit	1.1%	0.0%
Walked	4.2%	0.0%
Bicycle	0.0%	0.0%
Worked from home	5.9%	6.1%
Other means	0.0%	0.0%

Housing

Units in structure (share)

	Monument Beach	South Dennis
1-unit, detached	77.0%	86.3%
1-unit, attached	20.6%	3.4%
2 to 4 units	2.4%	2.2%
5 to 19 units	0.0%	3.0%
20 or more units	0.0%	0.5%
Mobile home & other	0.0%	4.7%

Poverty & households

	Monument Beach	South Dennis
Poverty rate	3.1%	4.5%
Average household size	2.19	2.01
Mean commute (minutes)	29	23
Median year structure built	1983	1975