Buin has a population of 63,419, making it the 48th largest place we list in Chile. It is in Santiago Metropolitan.
Buin holds 0.32% of Chile's 19,945,850 people. Santiago, the largest place we list there, is 76 times its size. Twenty years earlier the World Gazetteer recorded 55,441, a rise of 14%.
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.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Paine | Santiago Metropolitan | 72,759 |
| Linares | Maule Region | 69,535 |
| Quillota | Valparaiso | 67,779 |
| Padre Hurtado | Santiago Metropolitan | 63,250 |
| Melipilla | Santiago Metropolitan | 63,100 |
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.