California · United States
Placentia population
52,495people · latest figure
Placentia has a population of 52,495, making it the 821st largest place we list in United States. It is in California.
Placentia holds under a tenth of one per cent of United States's 349,035,494 people. New York City, the largest place we list there, is 168 times its size. Twenty years earlier the World Gazetteer recorded 49,160, a rise of 7%.
The 2005 figure comes from the World Gazetteer archive restored on this site. The two sources may draw the settlement's boundary differently, so treat the change as indicative rather than exact. Why figures differ.
Placentia is in California, which has 1,132 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Downtown DC | District of Columbia | 52,560 |
| Harrisonburg | Virginia | 52,538 |
| Peabody | Massachusetts | 52,504 |
| Lenexa | Kansas | 52,490 |
| DeSoto | Texas | 52,486 |
| Burlington | North Carolina | 52,472 |
All places in United States → · California →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.