Placentia is a city in Orange County, California, home to about 52,826 people across 6.6 square miles. Its ZIP code is 92870.
Homes sold for a median of $604 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Placentia. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Placentia’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | John Wayne Orange County International Airport (SNA)14 miles away |
|---|---|
| Nearest city of 250,000+ | Anaheim, CA6 miles away |
| Nearest city of 1 million+ | Los Angeles, CA33 miles away |
Straight-line distances from the center of Placentia; 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.
Placentia had 51,824 residents in the 2020 census, up 11% since 2000.
It’s the 177th 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 89°F in summer, and winter lows average 48°F. About 13.6 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Anaheim, CA weather station (about a mile 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).
453 doctors and other health care providers list an office in Placentia.
Nearest hospitals
Providers with an office here
| Primary care doctors | 19 |
|---|---|
| Specialist doctors | 47 |
| Dentists | 55 |
| Nurse practitioners and physician assistants | 39 |
| Mental health providers | 138 |
| Physical and occupational therapists | 109 |
| Optometrists | 12 |
| Chiropractors | 34 |
| Pharmacies | 10 |
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 (13 nearby)
Grocery stores (4 nearby)
Pharmacies (1 nearby)
Libraries (2 nearby)
Museums (1 nearby)
Theaters and performance venues (2 nearby)
Counts are within about 2 miles 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.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Placentia-Yorba Linda Unified. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Brookhaven ElementaryPlacentia | K–6 | 482 | Public | 1.5 mi |
| Buena Vista Virtual AcademyPlacentia | K–12 | 97 | Alternative Education | 2.0 mi |
| Charles Wagner ElementaryPlacentia | K–6 | 440 | Public | 1.2 mi |
| George KeyPlacentia | K–12 | 124 | Special Education | 2.0 mi |
| Golden ElementaryPlacentia | K–6 | 834 | Public | 2.0 mi |
| John O. Tynes ElementaryPlacentia | K–6 | 591 | Public | 0.2 mi |
| Melrose ElementaryPlacentia | K–5 | 354 | Public | 1.5 mi |
| Morse ElementaryPlacentia | K–6 | 382 | Public | 0.8 mi |
| ParkviewPlacentia | K–12 | 259 | Alternative Education | 2.0 mi |
| Ruby Drive ElementaryPlacentia | K–6 | 373 | Public | 1.2 mi |
| Sierra Vista ElementaryPlacentia | K–6 | 454 | Public | 1.8 mi |
| Van Buren ElementaryPlacentia | K–6 | 538 | Public | 1.4 mi |
| Valadez Middle School AcademyPlacentia | 6–8 | 527 | Public | 1.4 mi |
| Col. J. K. Tuffree MiddlePlacentia | 7–8 | 566 | Public | 1.9 mi |
| Kraemer MiddlePlacentia | 7–8 | 889 | Public | 0.7 mi |
| El Camino Real Continuation HighPlacentia | 9–12 | 142 | Alternative Education | 1.0 mi |
| El Dorado HighPlacentia | 9–12 | 1,998 | Public | 1.2 mi |
| Valencia HighPlacentia | 9–12 | 2,411 | Public | 0.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Joseph Elementary SchoolPlacentia | Pre-K–8 | 179 | Roman Catholic | 0.9 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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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.