San Carlos has a population of 27,471, making it the 17th largest place we list in Uruguay. It is in Maldonado.
San Carlos holds 0.81% of Uruguay's 3,382,537 people. Montevideo, the largest place we list there, is 46 times its size. Twenty years earlier the World Gazetteer recorded 24,938, a rise of 10%.
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 |
|---|---|---|
| San José de Mayo | San José Department | 35,883 |
| Colonia del Sacramento | Colonia | 32,164 |
| Barros Blancos | Canelones | 31,650 |
| Rocha | Rocha Department | 26,784 |
| Fray Bentos | Río Negro Department | 26,297 |
| Treinta y Tres | Treinta y Tres Department | 25,890 |
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.