Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CA/SOUTH-MONROVIA-ISLAND

South Monrovia Island ZIP codes, California

No ZIP code is named for South Monrovia Island, CA; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 91016 and 91010. Its area code is 626.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
6,830
Area code
626

NANPA lists no telephone rate centre for South Monrovia Island itself, so these are the area codes of the nearest one, Monrovia (0.0 miles). A town on an area-code boundary can differ from its neighbour.

South Monrovia Island in numbers

About 6,830 people live in South Monrovia Island, in 1,608 households. The median household income is $104,444 a year, 5% above the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $680,900 (7% below the California median), and median gross rent is $1,814 a month. The median age is 33.8; 25.2% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 26 minutes.

Population6,830South Monrovia Island6,830
Households1,608South Monrovia Island1,608
Median age33.8South Monrovia Island33.8California37.9US 38.9
Median household income$104,444South Monrovia Island$104,444California$99,122US $80,734
Median home value$680,900South Monrovia Island$680,900California$734,700US $332,700
Median gross rent$1,814South Monrovia Island$1,814California$2,036US $1,413
Bachelor's degree or higher25.2%South Monrovia Island25.2%California37.1%US 35.7%
Mean commute25.5 minSouth Monrovia Island25.5 minCalifornia28.7 minUS 26.4 min
Population density12,464 / sq miSouth Monrovia Island12,464 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place South Monrovia Island CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering South Monrovia Island

These ZIP codes cover part of South Monrovia Island but are addressed as somewhere else.

ZIP codes overlapping South Monrovia Island
ZIP City Type Population Median income Median home
91010 Duarte , CA Standard 27,589 $102,705 $756,500
91016 Monrovia , CA Standard 41,140 $96,540 $896,700

Map of South Monrovia Island ZIP codes

9101091016

The ZIP codes of South Monrovia Island, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near South Monrovia Island

The nearest larger towns are Arcadia (55,170 people, 2.4 mi), Monrovia (37,571 people, 2.9 mi) and Baldwin Park (70,138 people, 3.1 mi).

Towns near South Monrovia Island
TownPopulationDistance
Mayflower Village 4,950 0.9 mi
North El Monte 4,086 2.1 mi
Arcadia 55,170 2.4 mi
Monrovia 37,571 2.9 mi
Baldwin Park 70,138 3.1 mi
Duarte 22,184 3.7 mi
Temple City 35,430 3.8 mi
El Monte 106,109 3.9 mi
Sierra Madre 10,940 4.4 mi
Vincent 15,340 4.5 mi
East Pasadena 5,479 4.8 mi
East San Gabriel 23,410 4.8 mi
Azusa 49,031 4.9 mi
West Puente Valley 22,495 5.2 mi

More nearby: every ZIP code in Los Angeles County · California ZIP codes

Cite this page

zipcodes.pro. “South Monrovia Island, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/south-monrovia-island

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