South Monrovia Island vs Westlake Village

A side-by-side comparison of South Monrovia Island and Westlake Village: population, income, housing, and more.

South Monrovia Island and Westlake Village are places in California. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Westlake Village has the higher population (7,829 vs 7,072 in South Monrovia Island). Westlake Village has the higher median household income ($174,069 vs $109,730 in South Monrovia Island). Westlake Village has the higher median home value ($1,212,800 vs $660,800 in South Monrovia Island).

Population, income & housing

	South Monrovia Island	Westlake Village
Population	7,072	7,829
Median age	34.4 yrs	49.9 yrs
Median household income	$109,730	$174,069
Median home value	$660,800	$1,212,800
Median gross rent	$1,985	$3,501
Housing units	1,696	3,190
Homeownership rate	66.7%	81.9%
Bachelor's degree or higher	27.2%	66.4%
Unemployment rate	5.4%	3.4%

Trends (ACS 5-year, 2019–2023)

	South Monrovia Island	Westlake Village
Population	6,572 → 7,072 (+7.6%)	8,358 → 7,829 (-6.3%)
Median household income	$63,750 → $109,730 (+72.1%)	$140,850 → $174,069 (+23.6%)
Median home value	$465,000 → $660,800 (+42.1%)	$953,700 → $1,212,800 (+27.2%)
Median gross rent	$1,481 → $1,985 (+34.0%)	$2,900 → $3,501 (+20.7%)

South Monrovia Island

Population

6,5727,072

Median household income

$63,750$109,730

Median home value

$465,000$660,800

Median gross rent

$1,481$1,985

Westlake Village

Population

8,3587,829

Median household income

$140,850$174,069

Median home value

$953,700$1,212,800

Median gross rent

$2,900$3,501

Age & race/ethnicity

Age distribution (share)

	South Monrovia Island	Westlake Village
Under 5	8.0%	2.3%
5 to 17	19.3%	17.7%
18 to 24	5.9%	4.1%
25 to 34	18.2%	7.8%
35 to 44	14.2%	9.6%
45 to 54	11.1%	14.7%
55 to 64	13.4%	16.0%
65 to 74	5.3%	15.4%
75 and over	4.5%	12.4%

Race & ethnicity (share)

	South Monrovia Island	Westlake Village
White (non-Hispanic)	11.5%	76.4%
Black or African American	3.8%	0.2%
American Indian & Alaska Native	0.0%	0.0%
Asian	8.4%	5.7%
Native Hawaiian & Pacific Islander	0.1%	0.0%
Some other race	0.4%	0.4%
Two or more races	5.4%	6.8%
Hispanic or Latino	70.4%	10.5%

Educational attainment (age 25+)

Share of adults 25+

	South Monrovia Island	Westlake Village
No high school diploma	24.4%	3.1%
High school graduate	25.6%	9.1%
Some college or associate's	22.7%	21.4%
Bachelor's degree	17.0%	40.8%
Graduate or professional degree	10.3%	25.6%

Commute to work

How workers get to work (share)

	South Monrovia Island	Westlake Village
Drove alone	74.8%	62.9%
Carpooled	12.7%	2.5%
Public transit	1.4%	0.0%
Walked	1.2%	2.0%
Bicycle	0.5%	0.0%
Worked from home	6.9%	31.0%
Other means	2.6%	1.5%

Housing

Units in structure (share)

	South Monrovia Island	Westlake Village
1-unit, detached	82.5%	69.1%
1-unit, attached	12.0%	18.4%
2 to 4 units	1.9%	3.9%
5 to 19 units	1.1%	3.4%
20 or more units	1.1%	0.6%
Mobile home & other	1.3%	4.5%

Poverty & households

	South Monrovia Island	Westlake Village
Poverty rate	6.0%	6.4%
Average household size	4.06	2.54
Mean commute (minutes)	27	25
Median year structure built	1954	1974