San Marcos Population 2026
San Marcos has a population of 54,615, making it the #10 biggest city in 🇸🇻 El Salvador, located in San Salvador Department. Roughly 0.9% of El Salvador's population lives here. It is about 9.6× smaller than San Salvador, the country's biggest city.
Population (city proper)
54,615
Rank in El Salvador
#10
Coordinates
13.66°N, 89.18°W
~733 m elevation · America/El_Salvador
Distance to capital (San Salvador)
3 km
2 miles, straight line
Other big cities in San Salvador Department
| City | Population | Rank in El Salvador |
|---|---|---|
| San Salvador | 525,990 | #1 |
| Soyapango | 329,708 | #2 |
| Mejicanos | 160,317 | #5 |
| Apopa | 112,158 | #7 |
| Delgado | 71,594 | #8 |
| Cuscatancingo | 44,369 | #13 |
| Ilopango | 38,890 | #17 |
| Ayutuxtepeque | 25,426 | #23 |
Cities near San Marcos
- San Salvador525,990 people · ~3 km away
- Delgado71,594 people · ~7 km away
- Mejicanos160,317 people · ~7 km away
- Soyapango329,708 people · ~7 km away
- Cuscatancingo44,369 people · ~7 km away
- Antiguo Cuscatlán33,767 people · ~8 km away
FAQ
What is the population of San Marcos?
San Marcos has a population of 54,615 (city proper, latest official figure via GeoNames), making it the #10 biggest city in El Salvador.
What region is San Marcos in?
San Marcos is located in San Salvador Department, El Salvador.
Is San Marcos the capital of El Salvador?
No, the capital of El Salvador is San Salvador, about 3 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
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