Rossmoor is a community in Orange County, California, home to about 11,532 people across 1.6 square miles. It has no ZIP code of its own: it’s part of 90720.
Homes sold for a median of $740 per square foot in the three months ending August 2026, a seller’s market.
Mostly Los Alamitos; part is in Rossmoor
Each card is that ZIP code’s whole market, including any part outside Rossmoor. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Rossmoor’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Long Beach International Airport (LGB)5 miles away |
|---|---|
| Nearest city of 250,000+ | Long Beach, CA6 miles away |
| Nearest city of 1 million+ | Los Angeles, CA25 miles away |
Straight-line distances from the center of Rossmoor; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Rossmoor had 10,625 residents in the 2020 census, up 3% since 2000.
It’s the 457th largest of 1,563 towns in California by population.
Orange County grew from 19,696 residents in 1900 to 3,186,989 in 2020.
Orange County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 47°F. About 12.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Long Beach Daugherty Fld, CA weather station (5 miles away).
1,580,778 jobs at 106,961 businesses in Orange County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
820 doctors and other health care providers list an office in Rossmoor.
Nearest hospitals
Providers with an office here
| Primary care doctors | 71 |
|---|---|
| Specialist doctors | 181 |
| Dentists | 81 |
| Nurse practitioners and physician assistants | 84 |
| Mental health providers | 300 |
| Physical and occupational therapists | 66 |
| Optometrists | 11 |
| Chiropractors | 26 |
| Pharmacies | 16 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores (3 nearby)
Pharmacies (1 nearby)
Libraries
Museums (1 nearby)
Theaters and performance venues
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Los Alamitos Unified. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Francis Hopkinson ElementaryLos Alamitos | K–5 | 642 | Public | 1.7 mi |
| Jack L. Weaver ElementaryLos Alamitos | K–5 | 640 | Public | 1.2 mi |
| Los Alamitos ElementaryLos Alamitos | K–5 | 625 | Public | 0.7 mi |
| Richard Henry Lee ElementaryLos Alamitos | K–5 | 603 | Public | 1.0 mi |
| Rossmoor ElementaryLos Alamitos | K–5 | 540 | Public | 0.7 mi |
| Oak MiddleLos Alamitos | 6–8 | 998 | Public | 1.0 mi |
| Sharon Christa McAuliffe MiddleLos Alamitos | 6–8 | 1,018 | Public | 1.0 mi |
| Los Alamitos HighLos Alamitos | 9–12 | 2,915 | Public | 1.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Montessori Greenhouse SchoolsLos Alamitos | Pre-K–K | 7 | Nonsectarian | 0.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Los Alamitos and Cypress.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.