Guest, Sign inJoin

Post to South Monrovia Island

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
California›Los Angeles County

South Monrovia IslandCA

TownGrade
B−
#203 of 841 in CA

6,830 people call this town in California home.

Is South Monrovia Island a good place to live?

The weak point is cost of living (C−): the typical home is worth about $681K, 7.1 years of the Los Angeles metro’s $96K median household income. Overall, South Monrovia Island earns a B−, which places it 203rd of 841 in California. That leaves it better than 49% of U.S. towns. It lags on hazard risk as well: FEMA rates its natural-hazard risk higher than 93% of U.S. communities, with earthquakes at the top. Its best grade is for walkability: it is easier to get around on foot or by transit than 90% of U.S. towns. The town’s January low is 45°F, above both the California town median (40°F) and the median of U.S. towns (22°F). 28% of residents are under 18 here, above both California’s towns (22%) and U.S. towns (22%).

Figures: home values, Zillow · incomes, Census ACS, 2020–24 · FEMA National Risk Index · NOAA normals, 1991–2020.

How South Monrovia Island grades

Each subject compared with towns across the country (schools within California), ordered by how far South Monrovia Island is from typical.

How grading works

Its grades run from A for walkability (better than 90% of comparable towns) to D− for hazard risk (better than 5%), so the B− overall blends very different results.

Character Graded, but not part of the overall grade.
Described, not graded Taste, not quality: snow or an older crowd is neither good nor bad.

How TownRatings grades towns →

What makes South Monrovia Island stand out

Where South Monrovia Island beats most towns, and one thing worth knowing.

A commuter town

99% of working residents leave South Monrovia Island for work

Where South Monrovia Island’s working residents go each day. Line width shows the share.

21% → Los Angeles Los Angeles 21% 6% → Pasadena Pasadena 6% 6% → Monrovia Monrovia 6% 5% → Duarte Duarte 5% 4% → Arcadia Arcadia 4% 2% → El Monte El Monte 2% South Monrovia Island · 1% stay
307jobs based in South Monrovia Island
1%of working residents work in town
14 mimedian commute distance

Census LEHD 2024

The data

Ordered by what stands out in South Monrovia Island.

South Monrovia Island has milder winter nights than nearly all U.S. towns, sends most of its workers to Los Angeles and beyond and owes part of its health edge to its incomes.

Natural hazardsHazard risk grade D−

South Monrovia Island has a very high natural-hazard risk, chiefly from earthquakes

93risk score of 100

Of the losses FEMA expects in South Monrovia Island, 55% come from earthquakes and 43% from inland flooding.

FEMA risk score
93Very high riskLowerHigher
EarthquakesInland flooding

FEMA National Risk Index · OpenFEMA

SchoolsB+

On state tests, South Monrovia Island’s schools beat 69% of California districts

69%of CA districts it outscoresB+School Grade

Its one school is below. The Duarte Unified school district runs its public schools. South Monrovia Island’s only public school teaches 504 students.

SchoolLevelStudentsLetter
Maxwell Academy (PK-8)Largest public elementary schoolGrades K–8Grades K–8504C+

NCES · EDFacts · graded within CA on state tests and graduation

Work & commuteJobs & income grade B+

Most people working in South Monrovia Island commute elsewhere

1%work in town

South Monrovia Island has 307 jobs for its 2,835 working residents: even if every job went to a resident, most would still commute out.

For most workers, South Monrovia Island is a place to come home to: only 1% work in town. Since 2014, South Monrovia Island has added 51 jobs, to 307 in 2024. Among residents locally, 7.2% live below the poverty line. The top destinations are Los Angeles (21%), Pasadena (6%) and Monrovia (6%).

South Monrovia IslandTypical California townTypical U.S. town
Working residents who work in town1%6.6%7.9%
Median household income$104,000$95,000$80,000
Below the poverty line7.2%10%9.6%
Average trip to work26 minutes28 minutes25 minutes

Where working residents work

In South Monrovia Island1%
Los Angeles21%
Pasadena6%
Monrovia6%
Duarte5%
14 mi
median commute distance
307
jobs based in South Monrovia Island
A commuter town
jobs vs. working residents
A
Walkability grade: more walkable than 90% of U.S. towns

Census LEHD 2024 · ACS

Climate

Mild winters and hot summers: that is South Monrovia Island’s year

90°summer high

January nights average 45°, milder than in 97% of U.S. towns; July afternoons average 89°.

It almost never snows. Precipitation in South Monrovia Island totals about 17 inches in a normal year.

South Monrovia IslandTypical California townTypical U.S. town
January low45°F40°F22°F
July high89°F89°F85°F

Typical low → high °F

Winter45–69°
Spring51–75°
Summer62–88°
Fall55–82°
+2.6°
vs. the 20th-century average
90°
typical summer high

NOAA U.S. Climate Normals, 1991–2020

HealthB−

South Monrovia Island ranks healthier than 52% of the country’s towns

52%of U.S. towns are less healthyB−Health Grade

Against the 7,929 U.S. towns with household incomes like South Monrovia Island’s, it is less healthy than 75%: its national edge comes with its incomes.

In South Monrovia Island, 28% of adults get no exercise outside work. This California town beats the California average on 6 of 32 CDC measures and trails it on 9. 70% of adults locally had a checkup this year; 18% have been diagnosed with depression.

South Monrovia IslandTypical California townTypical U.S. town
Feel lonely (CDC PLACES)42%36%33%
Yearly checkup (CDC PLACES)70%72%79%
No health insurance, 18–64 (CDC PLACES)15%9%8.1%
Depression (CDC PLACES)18%22%23%
32 measures vs. California
6 better17 too close to call9 worse
What stands outSouth Monrovia IslandCA
Fewer adults who have had cancer4.8%6.4%
Fewer older adults who have lost all their teeth8.9%10.6%
More uninsured adults15.2%10.6%
USC Arcadia Hospital
2.7 mi away · emergency room
None
primary care, dental or mental-health shortage
41st
percentile among CA towns

CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA

OutdoorsC−

0.9% of the land in South Monrovia Island is protected from building

0.9%conserved

The park or preserve in South Monrovia Island covers 2 acres.

0.9%
conserved · 3 of 350 acres
0.0 mi
of trails
Biggest places to walkTrailsAcres
1. Pamela Park—2

Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

HousingCost of living grade C−

A home in South Monrovia Island sells for about $825K at the median

$825Kmedian sale price

South Monrovia Island’s median rent is $1,814 a month. For households here, the share who own their home is 66%.

South Monrovia IslandTypical California townTypical U.S. town
Median rent$1,814 a month$1,898 a month$1,185 a month
Households that own their home66%64%73%
2
homes sold in September

Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center

Keep exploring

Everything we know about South Monrovia Island

16pages on South Monrovia Island
Nearby attractions

Hollywood Walk of Fame and 244 more within 40 miles

Museums, parks, gardens and other places to visit around South Monrovia Island. Close and well known come first.

All 275 attractions →
Sources: National Park Service · ski areas © OpenSkiMap / OpenStreetMap contributors · Wikidata · Wikipedia readership · photos via Wikimedia Commons
Photo credits

Hollywood Walk of Fame: BenSherman, Public domain · SoFi Stadium: Thank You (21 Millions+) views, CC BY 2.0 · Disneyland: HarshLight from San Jose, CA, USA, CC BY 2.0 · Lucas Museum of Narrative Art: Kriddl, CC0 · Los Angeles Memorial Coliseum: CanonStarGal, CC BY-SA 4.0 · Crypto.com Arena: Troutfarm27, CC BY-SA 4.0

Getting set up

Moving to South Monrovia Island: who provides what

South Monrovia Island is unincorporated, so Los Angeles County and regional agencies provide most services.

PowerSouthern California Edison31.5¢/kWh · EIA 2025HIFLD · EIA
WaterCal-Am Water Company - DuarteNo health-based violations in 5 years · EPAEPA
Internet7 providers100% of addresses get 100/20 MbpsFCC
Trash & county servicesLos Angeles CountyLos Angeles County provides services here
SchoolsDuarte Unified School DistrictMonrovia Unified School District2 districts serve South Monrovia Island; which school depends on your address and gradeNCES
Register to voteOnlineIn California you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before).vote.gov
Who runs elections hereLos Angeles Registrar-Recorder County ClerkLos Angeles County; contacts on the Handbook page.FVAP, Sep 2025
ZIP codes91010, 9101691010 67% · 91016 33%Census 2020

EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.

After high school

Colleges nearby

35 within 15 miles of the center of South Monrovia Island

About South Monrovia Island

Census-designated place in California, United States

South Monrovia Island () is a census-designated place in Los Angeles County, California. It sits at an elevation of 384 feet (117 m). It is bounded to the west and north by Monrovia, to the east by Duarte, and to the south by Irwindale. The 2020 United States census reported that South Monrovia Island's population was 6,515.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Area
0.5 sq mi
Elevation
384 ft
Area code
626

South Monrovia Island’s neighbors

2 towns share a border with South Monrovia Island.

Explore the map →
How the neighbors grade
TownCA rankOverallCostSafetySchoolsHealth
South Monrovia Island#203B−C−—B+B−
Monrovia#309C+D−CB+A−
Irwindale——CD−BB+

Irwindale has fewer than 2,500 residents, so it gets subject grades but no overall grade. South Monrovia Island reports no FBI crime data of its own. Compare South Monrovia Island with a neighbor →

Questions about South Monrovia Island

Short answers, built from the data on this page.

Is South Monrovia Island, CA a good place to live?

South Monrovia Island grades B− overall, better than 49% of U.S. towns and #203 of 841 in California. It grades B− for health and B+ for schools. Hazard risk is its weak spot, with a D−.

Is South Monrovia Island, CA expensive?

Yes. The typical home is worth about $681,000, 11% below the California typical home. Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades C−.

South Monrovia Island is in here

Say something about South Monrovia Island.

Ask a question, answer one, post a photo or an event. Free, and the parts only a neighbor would know are the parts worth reading.

Post to South Monrovia Island’s town square →