Acton vs South Monrovia Island

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

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

Acton has the higher population (7,721 vs 7,072 in South Monrovia Island). Acton has the higher median household income ($110,000 vs $109,730 in South Monrovia Island). Acton has the higher median home value ($695,300 vs $660,800 in South Monrovia Island).

Population, income & housing

	Acton	South Monrovia Island
Population	7,721	7,072
Median age	45.7 yrs	34.4 yrs
Median household income	$110,000	$109,730
Median home value	$695,300	$660,800
Median gross rent	$1,755	$1,985
Housing units	2,887	1,696
Homeownership rate	94.6%	66.7%
Bachelor's degree or higher	29.3%	27.2%
Unemployment rate	1.7%	5.4%

Trends (ACS 5-year, 2019–2023)

	Acton	South Monrovia Island
Population	7,232 → 7,721 (+6.8%)	6,572 → 7,072 (+7.6%)
Median household income	$97,857 → $110,000 (+12.4%)	$63,750 → $109,730 (+72.1%)
Median home value	$559,600 → $695,300 (+24.2%)	$465,000 → $660,800 (+42.1%)
Median gross rent	$1,535 → $1,755 (+14.3%)	$1,481 → $1,985 (+34.0%)

Acton

Population

7,2327,721

Median household income

$97,857$110,000

Median home value

$559,600$695,300

Median gross rent

$1,535$1,755

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

Age & race/ethnicity

Age distribution (share)

	Acton	South Monrovia Island
Under 5	6.1%	8.0%
5 to 17	13.8%	19.3%
18 to 24	8.0%	5.9%
25 to 34	9.1%	18.2%
35 to 44	11.2%	14.2%
45 to 54	13.1%	11.1%
55 to 64	18.2%	13.4%
65 to 74	16.4%	5.3%
75 and over	4.0%	4.5%

Race & ethnicity (share)

	Acton	South Monrovia Island
White (non-Hispanic)	57.8%	11.5%
Black or African American	0.4%	3.8%
American Indian & Alaska Native	0.0%	0.0%
Asian	2.1%	8.4%
Native Hawaiian & Pacific Islander	0.0%	0.1%
Some other race	0.4%	0.4%
Two or more races	2.7%	5.4%
Hispanic or Latino	36.5%	70.4%

Educational attainment (age 25+)

Share of adults 25+

	Acton	South Monrovia Island
No high school diploma	6.7%	24.4%
High school graduate	29.7%	25.6%
Some college or associate's	34.4%	22.7%
Bachelor's degree	21.5%	17.0%
Graduate or professional degree	7.8%	10.3%

Commute to work

How workers get to work (share)

	Acton	South Monrovia Island
Drove alone	68.4%	74.8%
Carpooled	9.3%	12.7%
Public transit	2.1%	1.4%
Walked	0.6%	1.2%
Bicycle	0.0%	0.5%
Worked from home	18.1%	6.9%
Other means	1.6%	2.6%

Housing

Units in structure (share)

	Acton	South Monrovia Island
1-unit, detached	90.9%	82.5%
1-unit, attached	2.1%	12.0%
2 to 4 units	0.0%	1.9%
5 to 19 units	0.0%	1.1%
20 or more units	0.3%	1.1%
Mobile home & other	6.6%	1.3%

Poverty & households

	Acton	South Monrovia Island
Poverty rate	7.8%	6.0%
Average household size	2.88	4.06
Mean commute (minutes)	48	27
Median year structure built	1986	1954